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Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 4248. Отображено 100.
30-12-2021 дата публикации

Устройство для деоксигенации воды в проточных системах

Номер: RU0000208692U1
Автор: Вячеслав Александрович Крысанов, Дмитрий Дмитриевич Вахнин, Лев Николаевич Полянский, Олег Александрович Козадеров, Тамара Александровна Кравченко
Принадлежит: федеральное государственное бюджетное образовательное учреждение высшего образования "Воронежский государственный университет" (ФГБОУ ВО "ВГУ")

Полезная модель может быть использована в процессах водоподготовки для технологий, требующих непрерывную подачу очищенной обескислороженной воды.Устройство для глубокой деоксигенации воды, включающее электрохимическую ячейку, разделенную катионообменной мембраной на анодные и катодное отделения, анодные отделения заполнены зернистым слоем сульфокатионообменника, катодное отделение загружено зернистым слоем медьсодержащего нанокомпозита; а также устройство содержит ряд последовательных фильтров для предварительной и постобработки воды: механический, сорбционный и ионообменный фильтры смешанного действия, в устройство дополнительно входит химический деоксигенатор с зернистым слоем нанокомпозита; насос, кислородомеры, расходомер, система кранов, отличающееся тем, что содержит систему из фильтров предварительной обработки воды, включающую в себя последовательные механический, сорбционный и ионообменный фильтры смешанного действия, а также систему из фильтров постобработки воды, состоящую из последовательного сорбционного и ионообменного фильтров, устройство дополнительно содержит два последовательных блока - электрохимический и химический, которые располагают между системой из фильтров предварительной обработки воды и системой из фильтров постобработки воды; катодное отделение электрохимического блока представляет собой семиступенчатый электродеоксигенатор с последовательным гидравлическим соединением ступеней, каждая из которых имеет собственную систему поляризации, электрический ток при этом подают перпендикулярно потоку воды, в два анодных отделения электрохимического блока, расположенных по обе стороны катодного отделения с покрытыми нитридом титана анодами из нержавеющей стали, загружают сульфокатионообменник Lewatit K2620, в катодное отделение с проволочным медным катодом в центре помещают нанокомпозит медь-сульфокатионообменник Lewatit K2620, а катодное и анодное отделения разделяют катионообменной мембраной МК-40, используют все ионообменные компоненты в Na+- ...

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Номер записи: 1
29-11-2012 дата публикации

Washing appliance with dedicated water-softener

Номер: US20120298153A1
Автор: Gene Sidney Shelp, Iurie Pargaru, Leonard Paul Seed
Принадлежит: ENPAR TECHNOLOGIES INC

The softener is based on a capacitive-deionization (CDI) cell, in which the hardness ions are extracted, and disposed of still intact, in concentrated form. The softener is combined with a chelate to inhibit precipitation, in the appliance, from the concentrated effluent. The chelate being citric acid, the acidity is effective to keep the hardness ions in solution. The purify and regenerate modes of operation of the softener can be timed to coincide with the washing and rinsing cycles of the appliance, whereby the presence of the softener does not affect the speed and performance of the appliance.

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Номер записи: 2
13-12-2012 дата публикации

Control valve assembly

Номер: US20120313018A1
Автор: Raymond Lillback
Принадлежит: Individual

A control valve assembly ( 10 ) controls the flow of water to and from a treatment tank ( 16 ) and the regeneration of the treatment material therein. A housing of the valve assembly includes connections for a tank inlet and tank outlet, an inlet chamber ( 60 ), outlet chamber ( 34 ), a pressure-operated inlet valve ( 24 ) and an outlet valve ( 32 ). A pair of venturi chambers ( 81 a, 81 b ) are configured to provide co-current and counter-current regeneration. A subsystem includes a turbine ( 104 ) and a nozzle. An external port ( 130 ) receives fluid to to drive the turbine in order to initiate regeneration. The inlet valve ( 24 ) has dual seating surfaces for controlling the communication between the inlet chamber, transfer chamber ( 70 ), a bypass chamber and tank inlet ( 26 ). The bypass chamber may receive a blocking wall for blocking communication between the chamber and the outlet.

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Номер записи: 3
21-03-2013 дата публикации

WATER SOFTENER HAVING TIMER CONTROL VALVE

Номер: US20130068678A1
Автор: AN Joong Keun, Kim Won Tae, PARK Chun Ho, Yoon Sung Hun
Принадлежит: WOONGJIN COWAY CO., LTD.

A water pressure regenerated type water softener including: a timer control valve having a valve control unit rotated by a timer spring and into which raw water is supplied; a plurality of conduits into which the raw water selectively flows under the control of the timer control valve; a regeneration tank communicating with a regeneration tank inlet conduit of the conduits; and a resin tank unit receiving regeneration water flowing from the regeneration tank and containing an ion exchange resin therein. The water softener can be operated in one of stop mode, soft water mode, raw water mode and regeneration mode under the control of the valve control unit. When regeneration mode is selected, the valve control unit rotates to stop mode by the timer spring after a preset amount of time has elapsed. 1. A water softener , comprising:a timer control valve receiving raw water therein and rotatable by a timer spring.2. (canceled)3. The water softener as set forth in claim 1 , wherein the timer control valve comprises a valve control unit operated using the timer spring claim 1 , the timer control valve being operated in one of the regeneration mode claim 1 , the soft water mode and a stop mode claim 1 , wherein claim 1 , when the regeneration mode is selected claim 1 , the timer spring returns the valve control unit to the stop mode after a preset amount of time has elapsed.4. (canceled)5. The water softener as set forth in claim 1 , further comprising:a resin tank unit including a plurality of resin tanks coupled to each other in parallel, a resin tank inlet conduit connected to inlets of the resin tanks coupled to each other in parallel, wherein a fluid, which has been supplied to the resin tank inlet conduit, is distributed to the resin tanks.6. (canceled)7. The water softener as set forth in claim 5 , further comprising:a regeneration tank, wherein the regeneration tank comprises a regeneration water outlet conduit for discharging regeneration water, wherein the ...

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Номер записи: 4
28-03-2013 дата публикации

Water Softener With Closed-Pressure Aeration

Номер: US20130075313A1
Автор: Handy Scott R.
Принадлежит:

A water conditioning system that both softens and improves the smell of water by removing dissolved ferrous iron and hydrogen sulfide from the water includes: a water softening tank, a cation exchange media situated in the water softening tank, a brine tank, a programmable control valve which regulates flow through the system and the periodic rejuvenation of the cation exchange media using flow from the brine tank, a valve that assists in providing a flow of aerated, pressurized water to the system, and an adapter with a bottom portion and a flow control valve that control the volume of the gaseous pocket that is created in the top portion of the water softening tank. 1. An improved water conditioning system that softens and improves the smell of water by removing dissolved ferrous iron and hydrogen sulfide from the water , said system of the type having a water softening tank having top and bottom portions and a specified interior volume , and wherein said top portion having proximate its highest point a first tank opening that serves as a tank inlet , a cation exchange media situated in said water softening tank , a conduit that is configured to bring water to and supply pressurized water through said first tank opening , a brine tank that contains a brine solution , a programmable control valve having a plurality of inlets and outlets and which is configured to regulate the flow of said pressurized water to and from said water softening tank and to allow for the periodic rejuvenation of said cation exchange media using said brine solution , said system improvement comprising:a means configured to connect with said conduit and introduce air into said pressurized water that flows through said means so as to yield pressurized, aerated water flowing downstream from said means and through said system,a second opening in said water softening tank top portion,an adapter having top, middle and bottom portions and a passage that extends between said top and bottom ...

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Номер записи: 5
04-04-2013 дата публикации

Water treatment method and apparatus

Номер: US20130082002A1
Автор: Edward Robakowski, Keith Brown, Mark J. Brotman
Принадлежит: Edward Robakowski, Keith Brown, Mark J. Brotman

A water treatment system includes a weak acid cation resin where a portion of the feed water is exposed to the resin and then blended with untreated feed water to produce a stream of water with reduced mineral scaling and potential. Feed water is split into a first fluid stream, fed to a bypass conduit and a second fluid stream that is conveyed through a weak acid cation treatment bed. After passing through the bed, the treated fluid is combined with the bypass fluid stream to produce a blended feed water at the outlet. The ratio of the bypass fluid stream and treated fluid stream is a function of pH and L.S.I. A controller and associated sensors may control the relative flow rates between the bypass fluid stream and the treated stream to maintain a predetermined water parameter such pH, L.S.I., etc. within a predetermined range.

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Номер записи: 6
18-04-2013 дата публикации

Underground brine generating system

Номер: US20130092287A1
Автор: Steven Ireland
Принадлежит: BRINEMAKER Inc

A brine generating system is disclosed for use with an underground storage tank, the system including a main salt delivery channel that branches into two horizontal feed lines through a reducer to deliver salt under pressure to the bottom of the storage tank in a generally equal distribution along the tank floor. The salt distribution system can be combined with a water distribution system to ensure delivery of water at the location of the salt deposits along the tank floor.

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Номер записи: 7
02-05-2013 дата публикации

METHOD FOR REMOVING AMMONIUM NITROGEN FROM ORGANIC WASTE WATER COMPRISING LIQUID MANURE

Номер: US20130105398A1
Автор: Christensen Jens Tradsborg, Wennergreen Bo
Принадлежит: RE-N TECHNOLOGY APS

The invention relates to a method for removing ammonium nitrogen from organic waste water comprising liquid manure, which method comprises the steps of applying waste water with a high content of ammonium to an organic, synthetic ion exchanger and allowing ammonium to adsorb to the ion exchanger. 2. The method according to claim 1 , further comprising the step of bringing the ion exchanger on Na-form prior to the application of said waste water to the ion exchanger.3. (canceled)4. The method according to claim 1 , wherein claim 1 , following step (iii) claim 1 , the ion exchanger is regenerated with a solution of NaNOof a molality from 2 mol/kg to full saturation claim 1 , and/or with a solution of NaCOof a molality from 1 mol/kg to full saturation claim 1 , and/or with a solution of NaCl of a molality from 2 mol/kg to full saturation claim 1 , and/or with a solution of NaSOof a molality from 1 mol/kg to full saturation.5. The method according to claim 4 , wherein step (iii) and said step of regenerating the ion exchanger are performed by turns in a series comprising more than 10 claim 4 , preferably more than 25 claim 4 , most preferred more than 50 repetitions of said steps and wherein the ion exchanger is not replaced during the duration of said series.6. The method according to claim 1 , wherein the concentration of ammonium nitrogen in the organic waste water exceeds 3 g/l claim 1 , preferentially 4 g/l claim 1 , preferably 5 g/l.7. The method according to claim 1 , wherein the organic waste water shows a pH in the range of 6.5-8.0 at the time of application of said waste water to the ion exchanger.8. The method according to claim 1 , wherein the beads of the ion exchanger have a mean particle size of 0.4-1.0 mm claim 1 , preferably 0.6-0.7 mm claim 1 , and a uniformity coefficient of 1.2 or less claim 1 , preferably 1.1 or less. The present invention relates to a method for removing ammonium nitrogen from organic waste water comprising liquid manure.Wherever ...

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Номер записи: 8
27-06-2013 дата публикации

Fluid Treatment System

Номер: US20130161260A1
Автор: Barker Tracy A., Baron Joseph, Beereddy Raja, Ferguson Keith
Принадлежит:

The present disclosure provides, in an embodiment, a system for treating a contaminated fluid. The system may include multiple shielded modules in fluid communication with one another. Each module of the system of the present disclosure may include an inner pressure vessel designed to accommodate a treatment medium, the treatment medium being selected to remove radioactive contaminants from a fluid passed through the pressure vessel. The module may also include an outer shield vessel surrounding the pressure vessel and designed to attenuate the radiation from the radioactive contaminants accumulated by the treatment medium in the pressure vessel and facilitate ease of handling and storage of the module together with the contaminated treatment medium. Finally, an annular region may be defined between the pressure vessel and the shield vessel for passing a cooling medium therethrough to remove decay heat from the radioactive contaminants accumulated in the pressure vessel. 1. A module for treatment of a fluid:an inner pressure vessel designed to accommodate a treatment medium, the treatment medium being selected to remove radioactive contaminants from a fluid passed through the pressure vessel;an outer shield vessel surrounding the pressure vessel and designed to attenuate the radiation from the radioactive contaminants accumulated by the treatment medium in the pressure vessel and to facilitate ease of handling and storage of the module together with the contaminated treatment medium; andan annular region between the pressure vessel and the shield vessel for passing a cooling medium therethrough to remove decay heat from the radioactive contaminants accumulated in the pressure vessel.2. The module of further comprising a vent in fluid communication with the pressure vessel to allow venting of the pressure chamber.3. The module of claim 2 , wherein the vent allows to vent hydrogen or water vapor resulting from radiolysis of water and decay heat during storage of the ...

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Номер записи: 9
04-07-2013 дата публикации

HOT-WATER SUPPLY SYSTEM

Номер: US20130168302A1
Автор: Ogai Fumio
Принадлежит: Rinnai Corporation

A hot-water supply system includes a switching valve () which has a bypass circuit which bypasses the water softening device () by directly connecting the water supply pipe (P) and the inlet pipe (P) of a hot-water supply device to each other, and a control unit (). The control unit () includes a switching valve drive circuit which switches the switching valve () to the mode in which water is supplied from the water supply pipe (P) to the hot-water supply device () via the bypass circuit, based on the determination of the timing of salt replenishment, and a display drive circuit which displays intention, in which salt replenishment is needed, on a display portion () of a remote controller (RC). 1. A hot-water supply system which includes a hot-water supply device and a water softening device , which includes a regeneration salt water supply device , and in which regeneration salt water is supplied from the regeneration salt water supply device , an ion exchange resin of the water softening device is repeatedly regenerated , and soft water is supplied from the water softening device to the hot-water supply device , comprising:a regeneration salt amount determination unit which determines an amount of salt in the regeneration salt water supply device;a switching valve which is positioned at an upstream side of the water softening device, is connected to a water supply pipe which supplies water to the water softening device and a soft water supply pipe which supplies soft water generated by the water softening device to the hot-water supply device, and includes a bypass circuit which bypasses the water softening device by directly connecting the water supply pipe and the soft water supply pipe; anda control unit of the switching valve,wherein the control unit includes:a storage unit which stores a salt replenishment reference of the regeneration salt water supply device;a calculation circuit which determines a timing of salt replenishment based on the amount of salt in ...

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Номер записи: 10
04-07-2013 дата публикации

TREATMENT OF WASTE WATER CONTAINING FLUORINATED ACIDS OR THE SALTS THEREOF

Номер: US20130168319A1
Автор: Boddenberg Axel, Böger Uwe, Gabel Eike, Gruber Thomas, Lahr Helmut, Neumann Stefan
Принадлежит: LANXESS DEUTSCHLAND GMBH

The invention relates to a method of separating off fluorinated acids, in particular perfluorocarboxylic acids and perfluorosulphonic acids or salts thereof, from dilute aqueous solutions with the help of anion exchangers. 1. Method of separating off fluorinated acids or their salts from dilute aqueous solutions by contacting aforementioned solutions with an anion exchanger , characterized in that the anion exchangers used are those which are present at least partially in the fluoride form.2. Method according to claim 1 , characterized in that the dilute aqueous solutions comprise at least one fluorinated acid or at least one salt of a fluorinated acid claim 1 , the total amount of fluorinated acid or salts of fluorinated acids being 0.0005 to 5% by weight claim 1 , preferably 0.0005 to 2% by weight.3. Method according to or claim 1 , characterized in that the dilute aqueous solutions comprise perfluorocarboxylic acids of the formula (I) and/or perfluorosulphonic acids of the formula (II) or salts thereof{'br': None, 'sub': 2', 'n, 'F—(CF)COOH\u2003\u2003(I)'}{'br': None, 'sub': 2', 'm', '2, 'F—(CF)SOOH\u2003\u2003(H)'}in whichn and m are in each case an integer from 1 to 24.4. Method according to claim 3 , characterized in that the dilute aqueous solutions comprise perfluorocarboxylic acids of the formula (I) and perfluorosulphonic acids of the formula (II) claim 3 , in which n and m are in each case an integer from 1 to 24 and m=(n+1).5. Method according to one of to claim 3 , characterized in that the dilute aqueous solutions further comprise hydrogen fluoride or fluoride in an amount of from 0.1 to 10% by weight claim 3 , relative to and calculated on the basis of fluoride.6. Method according to one of to claim 3 , characterized in that the anion exchangers used ate those which have the structural element of the formula (IV) or the structural element of the formula (V) or have structural elements of the formulae (IV) and (V){'br': None, 'sup': +', '4', '5', '6', ...

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Номер записи: 11
11-07-2013 дата публикации

ELECTRICALLY REGENERABLE WATER SOFTENING APPARATUSES AND METHODS OF OPERATING THE SAME

Номер: US20130175221A1
Автор: Ham Dong Jin, Jeong Joon Seon, Kang Hyo Rang, Kim Hyun Seok, Kwon Bok Soon
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

Electrically regenerable water softening apparatuses, and methods of operating the same, include a first electrode and a second electrode facing each other; a first electrolyte chamber, a first cation exchange membrane, an ion exchange chamber, a second cation exchange membrane, and a second electrolyte chamber which are interposed between the first electrode and the second electrode; an inflow water flow channel configured to introduce inflow water to the ion exchange chamber; a first treated water flow channel configured to discharge treated water softened in the ion exchange chamber; a second treated water flow channel connecting at least one chamber selected from the first electrolyte chamber and the second electrolyte chamber with an ion exchange chamber; and a current applier configured to apply current to the first electrode and the second electrode. The ion exchange chamber is filled with a cation exchanger. 1. An electrically regenerable water softening apparatus , comprising:a first electrode and a second electrode facing each other;a first electrolyte chamber, a first cation exchange membrane, an ion exchange chamber filled with a cation exchanger, a second cation exchange membrane, and a second electrolyte chamber, which are interposed between the first electrode and the second electrode;an inflow water flow channel configured to introduce inflow water to the ion exchange chamber;a first treated water flow channel configured to discharge treated water softened in the ion exchange chamber;a second treated water flow channel connecting at least one chamber selected from the first electrolyte chamber and the second electrolyte chamber with the ion exchange chamber; anda current applier configured to apply a current to the first electrode and the second electrode.2. The electrically regenerable water softening apparatus of claim 1 , wherein the inflow water has a concentration of hardness ions; andthe inflow water flow channel is configured to introduce the ...

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Номер записи: 12
18-07-2013 дата публикации

SYSTEMS AND METHODS FOR TREATING WASTEWATER

Номер: US20130180924A1
Автор: Bruegeman Karl E., JR. John W., Macpherson
Принадлежит: OSW EQUIPMENT & REPAIR INC.

A method of treating wastewater includes treating the wastewater with an additive to generate a treated wastewater, filtering the treated wastewater through a filter system to substantially completely remove residual particulate material and generate filtered wastewater, and processing the filtered wastewater with an ion exchange media to adsorb soluble metals from the filtered wastewater. 1. A method of treating wastewater , the method comprising:(a) treating the wastewater with an additive to generate a treated wastewater;(b) filtering the treated wastewater through a filter system to substantially completely remove residual particulate material and generate filtered wastewater; and(c) processing the filtered wastewater with an ion exchange media to adsorb soluble metals from the filtered wastewater.2. The method of claim 1 , wherein the additive is selected from the group consisting of a coagulant claim 1 , a co-precipitant claim 1 , and a mixture thereof.3. The method of claim 2 , wherein the coagulant is selected from the group consisting of chitosan claim 2 , alum claim 2 , and aluminum chloride.4. The method of claim 2 , wherein the co-precipitant is selected from the group consisting of ferric chloride claim 2 , aluminum chloride claim 2 , and alum.5. The method of claim 1 , wherein the filtering system includes a pressure sand filter.6. The method of claim 1 , wherein the ion exchange media is MetalZorb® adsorptive media.7. The method of claim 1 , wherein the filtered wastewater is processed with the ion exchange media for a time period selected from the group consisting of less than 1 minute claim 1 , less than 2 minutes claim 1 , and less than 3 minutes.8. The method of claim 1 , wherein the wastewater flows at a rate in a range of about 50 to about 500 gpm.9. The method of claim 1 , wherein the wastewater flows at a rate of greater than about 500 gpm.10. The method of claim 1 , further comprising desorbing metals from the ion exchange media.11. The ...

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Номер записи: 13
01-08-2013 дата публикации

UREA SULFATE AND SODIUM CHLORIDE BLEND FOR REGENERATION OF CATION EXCHANGE RESINS

Номер: US20130192637A1
Автор: Everson Terrence P., Tan Lylien, Toetschinger Mark, Voss Peter, Wen Li
Принадлежит: ECOLAB USA INC.

Methods and systems for acid regeneration of ion exchange resins are disclosed. Acid resins designed for use in a variety of cleaning application using a water source use a treated, softened, acidic water source according to the invention. Various methods of using the softened acidic water generated by acid regenerate-able ion exchange resins are disclosed to beneficially reduce spotting, filming and scale buildup on treated surfaces, reduce and/or eliminate the need for polymers, threshold reagents and/or rinse aids, and using protons generated in the acidic water effluent for triggering events useful in various cleaning applications. 1. A system employing an ion exchange resin regenerated by an acid comprising:an inlet for providing a water source;a water treatment reservoir;a water treatment component housed within the water treatment reservoir, wherein said water treatment component comprises at least one ion exchange resin capable of generating a treated water source by exchanging protons on said resin for dissolved cations including water hardness ions and total dissolved solids in said water source, and wherein said ion exchange resin is an acid form or in an inert metal form;an outlet;a water delivery line in fluid communication with a cleaning application and/or storage reservoir to provide the treated water source to the cleaning application and/or storage reservoir; anda storage reservoir housing an acid salt regenerant and a regenerant delivery line fluidly connected to the water treatment reservoir to deliver the regenerant to the ion exchange resin;wherein the inlet is in fluid communication with the water treatment reservoir;wherein a first end of the outlet is in fluid communication with the water treatment reservoir and a second end is in fluid communication with the water delivery line;wherein the treated water source meets a defined water specification, and wherein the specification is a softened, acidic water having total dissolved solids (TDS) ...

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Номер записи: 14
01-08-2013 дата публикации

UREA SULFATE AND SODIUM CHLORIDE BLEND FOR REGENERATION OF CATION EXCHANGE RESINS

Номер: US20130192638A1
Автор: Everson Terrence P., Tan Lylien, Toetschinger Mark, Voss Peter, Wen Li
Принадлежит: ECOLAB USA INC.

Methods and systems for an integrated acid regeneration of ion exchange resins are disclosed for use in cleaning applications. Acid resins designed for use in a variety of cleaning application using a treated, softened, acidic water source are disclosed. Various methods of using the softened acidic water generated by acid regenerate-able ion exchange resins within a cleaning application, e.g. ware wash machine, are disclosed to beneficially reduce spotting, filming and scale buildup on treated surfaces, reduce and/or eliminate the need for polymers, threshold reagents and/or rinse aids, and using protons generated in the acidic water effluent for triggering events useful in various cleaning applications. 1. An integrated system employing an ion exchange resin regenerated by an acid for producing an acidic softened water source comprising:an inlet for providing a water source;a water treatment reservoir, wherein the inlet is in fluid communication with the water treatment reservoir;a water treatment component housed within the water treatment reservoir, wherein said water treatment component comprises at least one ion exchange resin capable of generating a treated water source by exchanging protons on said resin for dissolved cations including water hardness ions and total dissolved solids in said water source, and wherein said ion exchange resin is an acid form or in an inert metal form;an outlet, wherein the outlet is in fluid communication with the water treatment reservoir;a chamber into which articles are placed for cleaning;a treated water delivery line in fluid communication between the outlet and the chamber;a wash tank, wherein the wash tank is in fluid communication with a dispensing module that dispenses a wash agent into the wash tank;a wash agent delivery line in fluid communication with the wash tank and the chamber;an acid salt delivery line in fluid communication with the water treatment reservoir, wherein an acid salt regenerant is delivered to the ...

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Номер записи: 15
01-08-2013 дата публикации

WATER TREATMENT PROCESS

Номер: US20130193074A1
Автор: Hollitt Michael, Voigt Peter, Zontov Nikolai
Принадлежит: Clean TeQ Holdings Ltd.

A water treatment process for substantially removing one or more ionic species from a feed water includes an ion containing aqueous solution to produce a treated water product, the process including: (a) a sorption step, including contacting a solid sorbent with said feed water to produce a solution depleted in said one or more ionic species and a loaded sorbent; (b) a concentrating step, includes concentrating an inlet stream including the ionic species depleted solution to produce a concentrate rich in said one or more ionic species and said treated water product; and (c) a desorbing step, including contacting said loaded sorbent with an aqueous desorbant including said concentrate to thereby desorb at least some of said one or more ionic species from said loaded sorbent. 1. A water treatment process for substantially removing one or more ionic species from a feed water comprising an ion containing aqueous solution to produce a treated water product , the process including:(a) a sorption step, comprising contacting a solid sorbent with said feed water to produce a solution depleted in said one or more ionic species and a loaded sorbent;(b) a concentrating step, comprising concentrating an inlet stream including the ionic species depleted solution to produce a concentrate rich in said one or more ionic species and said treated water product; and(c) a desorbing step, comprising contacting said loaded sorbent with an aqueous desorbant including said concentrate to thereby desorb at least some of said one or more ionic species from said loaded sorbent.2. The water treatment process of claim 1 , wherein said sorption step comprises an ion exchange step and said solid sorbent comprises an ion exchange material.3. The water treatment process of claim 2 , wherein the ion exchange material comprises an ion exchange resin claim 2 , preferably in granular form.4. The water treatment process of claim 2 , wherein the ion exchange material is a cation exchanger.5. The water ...

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Номер записи: 16
08-08-2013 дата публикации

Calcium Removal Method

Номер: US20130200002A1
Автор: Otani Hirokazu, Suzuki Takayuki, Tamura Noritoshi
Принадлежит: TAIHEIYO CEMENT CORPORATION

In accordance with the present invention, there is provided a calcium removal method capable of reducing operation cost. A solution L containing potassium or/and sodium, and calcium is passed through an ion-exchange resin to separate the solution into a solution containing potassium or/and the sodium, and a solution containing calcium. Operation cost can remarkably be decreased since potassium carbonate is not required to remove calcium as before. Timing for changing a calcium-containing water L and a salt water L discharged from the ion-exchange resin can be performed based on at least one measurement result selected from the group consisting of: a calcium or chlorine concentration; electrical conductivity; and pH of a fluid which is discharged from said ion-exchange resin. The solution may be a filtrate L1 that is obtained by washing a chlorine bypass dust D generated in a cement burning process, or a leachate W of a final disposal site 1. A calcium removal method comprising the step of passing a solution containing potassium or/and sodium , and calcium through an ion-exchange resin to separate said solution into a solution containing potassium or/and the sodium , and a solution containing calcium.2. The calcium removal method as claimed in claim 1 , wherein said solution containing potassium or/and sodium claim 1 , and calcium is a filtrate obtained by washing chlorine bypass dust generated in a cement burning process.3. The calcium removal method as claimed in claim 2 , wherein an amount of the filtrate supplied to the ion-exchange resin and an amount of a regeneration water supplied to said claim 2 , ion-exchange resin are adjusted to equalize an amount of separated calcium-containing water to the amount of the supplied filtrate.4. The calcium removal method as claimed claim 2 , in claim 2 , wherein an amount of the filtrate supplied to the ion-exchange resin and an amount of a regeneration wafer supplied to said ion-exchange resin are adjusted to increase an ...

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Номер записи: 17
15-08-2013 дата публикации

RADIAL FLOW COLUMN INCLUDING ZERO-VALENT IRON MEDIA

Номер: US20130206700A1
Автор: Gudipati Chakravarthy S., Woodling Richard E.
Принадлежит: SIEMENS PTE. LTD.

Aspects and embodiments of the present disclosure are directed to apparatus and methods of filtering a fluid to reduce a level of at least one contaminant therein. The filtering of the fluid may be accomplished with a radial flow filtration column comprising a fluid chamber having an inlet, an outlet, and a side wall, an inner permeable retainer positioned in the fluid chamber, an outer permeable retainer positioned in the fluid chamber spaced apart from and surrounding the inner permeable retainer, a media bed compartment formed between the inner permeable retainer and the outer permeable retainer, a media bed comprising zero-valent iron disposed within the media bed compartment, and an adjustable element biased into the media bed compartment and configured to maintain a predetermined packing density of a media bed to be disposed within the media bed compartment. 1. A radial flow column comprising:a fluid chamber having an inlet, an outlet, and a side wall;an inner permeable retainer positioned in the fluid chamber;an outer permeable retainer positioned in the fluid chamber spaced apart from and surrounding the inner permeable retainer;a media bed compartment formed between the inner permeable retainer and the outer permeable retainer;to a media bed comprising zero-valent iron disposed within the media bed compartment; andan adjustable element biased into the media bed compartment and configured to maintain a predetermined packing density of the media bed.2. The radial flow column of claim 1 , wherein the inner permeable retainer and the outer permeable retainer are concentric.3. The radial flow column of claim 1 , further comprising an intermediate permeable retainer spaced apart from and surrounding the inner permeable retainer and spaced apart from and surrounded by the outer permeable retainer.4. The radial flow column of claim 1 , further comprising an inner flow chamber defined by an inner wall of the inner permeable retainer and having a first inlet at a ...

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Номер записи: 18
22-08-2013 дата публикации

Treatment Devices and Methods

Номер: US20130213872A1
Автор: Phelan Patricia
Принадлежит:

A treatment device for treating a potable liquid when submerged into the potable liquid, the treatment device including a porous enclosure enclosing an interior and filter media disposed in the interior of the porous enclosure and configured to adsorb impurities from the potable liquid entering the porous enclosure to yield a purified liquid that exits the porous enclosure, the filter media including activated carbon. In some examples, the treatment device is unaffixedly disposed in the potable liquid and/or is disposable. In some examples, the treatment device includes one or more pockets in the interior of the enclosure. Additionally or alternatively, the treatment device may include a strip incorporating filter media. 1. A single-use treatment device for treating a potable liquid when submerged into the potable liquid , the treatment device comprising:a disposable porous enclosure;a pocket defined by the porous enclosure; andfilter media disposed in the pocket;wherein the filter media is configured to purify the potable liquid when the potable liquid enters the pocket and contacts the filter media.2. The Error! Reference source not found. of claim 1 , wherein:the pocket defines a first pocket; andthe filter media defines a first filter media;further comprising a second pocket defined by the porous enclosure;wherein the second pocket is spaced from the first pocket and includes a second filter media comprising a different chemical composition than the first filter media.3. The Error! Reference source not found. of claim 1 , wherein:the porous enclosure defines a first porous enclosure;the pocket defines a first pocket; andthe first porous enclosure extends from a top to a bottom and extends from a first side to a second side;further comprising a second porous enclosure defining a second pocket, the second porous enclosure attached to the bottom, the first side, and the second side of the first porous enclosure.4. The Error! Reference source not found. of claim 3 , ...

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Номер записи: 19
17-10-2013 дата публикации

Extraction Of Anions From Solutions And Mixtures Using Hyperbranched Macromolecules

Номер: US20130270190A1
Автор: Boz Emine, Chi Yonggui, Diallo Mamadou, Frechet Jean
Принадлежит:

Hyperbranched macromolecules and methods are described for selectively filtering contaminants such as anions from water and non-aqueous solutions, particularly in the presence of competing contaminants including other anions. The hyperbranched macromolecules may contain 2-hydroxyalkyl, 2-methyl-2-hydroxylalkyl, and other groups, which may be hydrophilic or hydrophobic. The molecules may preferentially bind to the contaminant at interest at low pH, and release the contaminant at a pH of about 9. The molecules may be used to filter contaminants including perchlorate and nitrate even in the presence of high sulfate concentrations. 1. A hyperbranched macromolecule (A) comprising a plurality of branches and a plurality of terminal functional groups within the same molecular structure;wherein each branch comprises an N-substituted or N,N-substituted n-aminoalkyl moiety (B); (a) another of said plurality of branches; or', '(b) one of the plurality of terminal functional groups;, 'wherein each substituent to moiety B comprises eitherwherein A has a hyperbranched structure with a molecular weight of at least 1500 grams per mole;wherein A comprises essentially no primary amine moieties; andwherein each of the plurality of terminal functional groups is selected from the group consisting of 2-hydroxyalkyl and 2-methyl-2-hydroxyalkyl.2. The macromolecule of claim 1 , wherein each of the terminal functional groups is a 2-hydroxyalkyl group.3. The macromolecule of claim 1 , wherein each of the terminal functional groups is a 2-methyl-2-hydroxyalkyl group.4. The macromolecule of claim 1 , wherein the degree of branching of A is in the range of about 65% to about 70%.5. The macromolecule of claim 1 , wherein A comprises essentially no secondary amine moieties.6. The macromolecule of claim 1 , wherein each of the plurality of terminal functional groups is a hydrophobic group.7. The macromolecule of claim 1 , wherein A is water soluble at standard temperature and pressure.8. The ...

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Номер записи: 20
31-10-2013 дата публикации

CROSS-LINKING METHOD AND ARTICLES PRODUCED THEREBY

Номер: US20130284672A1
Автор: Barber John Harold, Fang Jianhua, Lu Su, MacDonald Russell James, Xia Zijun, Yang Hai
Принадлежит:

A method for cross-linking a styrenic polymer, the method comprising providing a partly sulphonated styrenic polymer and cross-linking the partly sulphonated styrenic polymer in the presence of a polyphosphoric acid. 1. A method for cross-linking a styrenic polymer , the method comprising:providing a partly sulphonated styrenic polymer; andcross-linking the partly sulphonated styrenic polymer in the presence of a polyphosphoric acid.2. The method of claim 1 , wherein the styrenic polymer is selected from a group consisting of a homopolymer of a styrenic monomer claim 1 , a copolymer of a styrenic monomer with one or more comonomers claim 1 , and a combination thereof.3. The method of claim 1 , wherein the cross-linking is carried out at a temperature of about 100° C. or greater.4. The method of claim 1 , wherein the cross-linking is carried out at a temperature in the range from about 120° C. to about 200° C.5. The method of claim 1 , wherein the partly sulphonated styrenic polymer has a degree of sulfonation of about 10%-80%.6. The method of claim 1 , wherein the partly sulphonated styrenic polymer has a degree of sulfonation of about 20%-70%.7. The method of claim 1 , wherein the cross-linking is carried out by forming a composition comprising the partly sulphonated styrenic polymer to obtain a molding claim 1 , and immersing the molding into the polyphosphoric acid.8. The method of claim 1 , wherein the molding is selected from a group consisting of a film claim 1 , an ion exchange resin and a hollow fiber.9. The method of claim 1 , wherein the providing the partly sulphonated styrenic polymer comprises the steps of:providing a styrenic polymer;contacting acetic anhydride with concentrated sulfuric acid to form acetyl sulfate; andreacting the acetyl sulfate with the styrenic polymer to obtain the partly sulphonated styrenic polymer.10. An article comprising at least one component comprising a cross-linked polystyrene produced by the a method of . for cross- ...

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Номер записи: 21
21-11-2013 дата публикации

PROCESS AND DEVICE FOR ENRICHING WATER WITH MAGNESIUM IONS

Номер: US20130306541A1
Автор: Bissen Monique, Johann Jürgen
Принадлежит: BWT Aktiengesellschaft

The invention relates to a process and a device for enriching water, in particular drinking water, with magnesium ions. In order to enable enrichment of water with magnesium ions in exchange for calcium ions and/or heavy metal ions during treatment of water, and in particular of drinking water, it is proposed according to the invention to pass the water through an ion exchanger which contains a weakly acidic ion exchange material, wherein at least a part of its ion exchange capacity is loaded with magnesium ions. 110-. (canceled)11. A device for enriching drinking water with magnesium ions , comprising an ion exchanger which contains a weakly acidic ion exchanger material , the ion exchanger material being loaded at least to a part of its ion exchanger capacity with magnesium ions and loaded in the range of 70 to 30% of its ion exchanger capacity with hydrogen ions.12. The device of claim 11 , wherein the ion exchanger material comprises a weakly acidic cationic exchanger resin.13. The device of claim 11 , wherein the ion exchanger material is loaded with magnesium ions in the range of 30 to 70% of its ion exchanger capacity.14. The device of claim 11 , wherein the ion exchanger comprises a bed made of weakly acidic ion exchanger material.15. The device of claim 11 , further comprising a filter arranged before or after the ion exchanger material in the direction of the flow of water through the ion exchanger.16. The device of claim 11 , wherein the ion exchanger comprises a part of a cartridge for use in a drinking water container.17. A cartridge for use in a water treatment system claim 11 , comprising:a cartridge housing which is insertable into a water treatment system;an ion exchanger material disposed in the cartridge housing, the ion exchanger material being loaded at least to a part of its ion exchanger capacity with magnesium ions and loaded in the range of 70 to 30% of its ion exchanger capacity with hydrogen ions.18. The cartridge of claim 17 , wherein the ...

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Номер записи: 22
21-11-2013 дата публикации

Electrochemical Ion Exchange Water Treatment

Номер: US20130306565A1
Автор: Davis Jake
Принадлежит:

An apparatus for treating water, comprising an electrochemical cell; and at least one ion exchange container in fluid communication with said electrochemical cell. 1. An apparatus for treating water , comprising:an electrochemical cell; andat least one ion exchange container in fluid communication with said electrochemical cell.2. The apparatus of claim 1 , wherein said ion exchange container comprises a plurality of fibers each comprising a plurality of pendent functional groups claim 1 , each pendent functional group comprising an alkali metal cation.3. The apparatus of claim 2 , wherein said plurality of fibers comprise a polymer backbone selected from the group consisting of polystyrene claim 2 , polyacrylic acid claim 2 , polyacrylonitrile claim 2 , polymethacrylate claim 2 , polyethylene claim 2 , and polypropylene.4. The apparatus of claim 1 , wherein said electrochemical cell comprises:a central chamber;a cathode chamber comprising a cathode, wherein said cathode chamber is separated from said central chamber by a first water-permeable membrane; andan anode chamber comprising an anode, wherein said anode chamber is separated from said central chamber by a second water-permeable membrane.5. The apparatus of claim 4 , wherein said first water-permeable membrane comprises a cation exchange membrane that permits passage of alkali metal cations but resists proton migration therethrough.6. The apparatus of claim 1 , wherein said electrochemical cell comprises a cathode chamber comprising:a first cathode region separated from said central chamber by a first cation exchange membrane;a second cathode region separated from said first cathode region by a second cation exchange membrane;a third cathode region separated from said second cathode region by a third cation exchange membrane; anda cathode disposed in said third cathode region.7. The apparatus of claim 6 , wherein said electrochemical cell comprises an anode chamber comprising:a first anode region separated ...

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Номер записи: 23
19-12-2013 дата публикации

TREATMENT OF EFFLUENTS FROM THE ELECTROPLATING INDUSTRY

Номер: US20130334140A1
Автор: Neumann Stephan, PODESTA Wolfgang
Принадлежит: LANXESS DEUTSCHLAND GMBH

The invention relates to a process for separating fluorinated acids, in particular perfluorocarboxylic acids and perfluorosulphonic acids, or salts thereof from metal-containing, aqueous solutions, in particular those which occur in the electroplating industry, by means of anion exchangers. 1. Process for separating fluorinated acids or salts thereof from their metal-containing , aqueous solutions , where metal-containing means a content of at least one transition metal compound , characterized in that abovementioned solutions are contacted with at least one weakly or strongly basic anion exchanger.2. Process according to claim 1 , characterized in that the metal-containing claim 1 , aqueous solutions contain a total amount of fluorinated acids or salts of fluorinated acids of from 1 to 200 000 μg/l claim 1 , preferably from 1 to 100 000 μg/l claim 1 , particularly preferably from 10 to 2000 μg/l claim 1 , very particularly preferably from 10 to 1000 μg/l and even more preferably from 10 to 500 μg/l.3. Process according to or claim 1 , characterized in that the fluorinated acids are the following:Polyfluorocarboxylic and perfluorocarboxylic acids of the formula (I) and [{'br': None, 'sub': 2', 'n', '2', 'm, 'F—(CF)—(CH)—COOH\u2003\u2003(I)'}, {'br': None, 'sub': 2', 'n', '2', 'm', '2, 'F—(CF)—(CH)—SOOH\u2003\u2003(II)'}], 'polyfluorosulphonic and perfluorosulphonic acids of the formula (II)'}where in each casen is an integer from 3 to 10, preferably from 4 to 8, andm is 0 or an integer from 1 to 4.4. Process according to any of to claim 1 , characterized in that the metal-containing claim 1 , aqueous solutions contain at least one transition metal compound claim 1 , where the content of transition metal compounds calculated as the respective transition metal oxide having the same oxidation state as the at least one transition metal compound present is from 10 mg/l to 100 g/l claim 1 , preferably from 50 mg/l to 10 g/l claim 1 , particularly preferably from 100 mg/l ...

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Номер записи: 24
26-12-2013 дата публикации

DESALTING DEVICE

Номер: US20130341263A1
Автор: Iino Hideaki, IWASAKI Mamoru, Terashima Mitsuharu
Принадлежит: Kurita Water Industries ltd

Provided is a desalting device which includes a tower body and a bulge portion bulging downward therefrom, and which prevents uneven flow and causes no dead space within the tower body. The desalting device includes a tower body having a bulge portion bulging downward at a bottom portion thereof, an ion-exchange resin packed in the tower body, and a plurality of strainers for collecting water being arranged within the bulge portion . The strainers are arranged only in a central region of an inside of the bulge portion excluding an outer peripheral portion of the bulge portion. 1. A desalting device comprising:a tower body having a bulge portion bulging downward at a bottom portion thereof;an ion-exchange resin packed in the tower body; anda plurality of strainers for collecting water being arranged within the bulge portion,wherein the strainers are arranged only in a central region of an inside of the bulge portion excluding an outer peripheral portion of the bulge portion.2. The desalting device according to claim 1 , whereinthe tower body includes a straight body portion having an isodiametric cylindrical shape and the bulge portion integrated with the straight body portion, andthe central region has a radius of 0.2 to 0.8 r where r is a radius of the straight body portion.3. The desalting device according to claim 2 , wherein the central region has a radius of 0.3 to 0.6 r.4. A desalting device comprising:a tower body having a bulge portion bulging downward at a bottom portion thereof;an ion-exchange resin packed in the tower body; anda plurality of strainers for collecting water being arranged within the bulge portion,wherein a flow rate of water passing through each strainer arranged in an outer peripheral portion is less than a flow rate of water passing through each strainer arranged in a region inside the outer peripheral portion.5. The desalting device according to claim 4 , wherein each strainer is connected to a water collecting pipe via a water ...

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Номер записи: 25
09-01-2014 дата публикации

Drinking water purification device

Номер: US20140008302A1
Автор: King Joseph A.
Принадлежит:

A fast acting water purification system containing a source of silver ions which is suitable for use in personal or household water containers, where the non-potable water may contain halides or other materials that limit the solubility of silver in the non-potable water, with the purification agent including a source of silver ions and a compound containing a hydantoin ring increase the presence of silver ions in the non-potable water to a level sufficient to quickly kill harmful microorganisms in the non-potable water without the need to add additional biocides to the non-potable water or pretreat the non-potable water. 18-. (canceled)9. A household water purification system for insitu generation of potable water from non-potable water comprising:a container for retaining non-potable water;a water purification material in contact with the non-potable water wherein said water purification material comprises a source of silver ions and a compound containing a hydantoin ring whereby the solubility of the silver ions in the non-potable water is elevated above the normal water solubility of silver ions in the non-potable by the presence of the compound containing the hydantoin ring to thereby convert the non-potable water into potable water.10. The household water purification system of wherein the compound containing the hydantoin ring is either glycolylurea or Dimethylhydantoin and an outlet to permit a user to draw the potable water from the container on an as needed basis and the container holds less than five gallons of water.11. The household water purification system of hydantoin wherein the compound containing the hydantoin ring lacks any biocidal properties and the water purification material is located in a floating dispensers having openings for ingress and egress of water therein generates in-situ water purification without the aid of an additional water purification agent.12. The household water purification system of including a valve for opening and ...

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Номер записи: 26
16-01-2014 дата публикации

ELECTROLYSIS DEVICE AND RELATED DETERGENTLESS WASHING MACHINE

Номер: US20140014145A1
Автор: Cai Wei, Tarr Ronald Scott, Thiyagarajan Ramasamy, Xia Zijun, Xiong Rihua, Yang Hai, ZHANG Chengqian
Принадлежит: GENERAL ELECTRIC COMPANY

An electrolysis device is disclosed for producing alkaline water from water including an electrolysis vessel, a positive electrode, a negative electrode, a bipolar membrane element, and at least one cation exchangeable membrane within the electrolysis vessel. The bipolar membrane element has a cation exchangeable side and an anion exchangeable side, the cation exchangeable side being closer to the negative electrode than the anion exchangeable side. The at least one cation exchangeable membrane is arranged between the anion exchangeable side of the bipolar membrane element and the positive electrode, so as to define an alkali chamber between the bipolar membrane element and the cation exchangeable membrane. An ionic exchange resin is associated with the vessel, whereby flow of the water though the vessel and the ionic exchange resin produces alkaline water in the alkali chamber. Various options and modifications are possible. A related washing machine such as a dishwasher is also disclosed. 1. An electrolysis device for producing alkaline water from water comprising:an electrolysis vessel;a positive electrode, a negative electrode, a bipolar membrane element, and at least one cation exchangeable membrane within the electrolysis vessel, the bipolar membrane element having a cation exchangeable side and an anion exchangeable side, the cation exchangeable side being closer to the negative electrode than the anion exchangeable side, the at least one cation exchangeable membrane being arranged between the anion exchangeable side of the bipolar membrane element and the positive electrode, so as to define an alkalic chamber between the bipolar membrane element and the cation exchangeable membrane; andan ionic exchange resin associated with the vessel, whereby flow of the water though the vessel and the ionic exchange resin produces alkaline water in the alkalic chamber.2. The electrolysis device of claim 1 , wherein an acidic chamber is defined between the anion exchange ...

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Номер записи: 27
16-01-2014 дата публикации

GRAVITY FILTER

Номер: US20140014566A1
Автор: Mitchell Michael Donovan
Принадлежит: HELEN OF TROY LIMITED

Embodiments of a gravity filter for potable water comprise a loose filter bed comprising ion exchange resin particles and activated carbon particles, and a porous non-woven filter substrate disposed downstream of the loose filter bed, wherein the porous non-woven filter substrate comprises an impregnated heavy metal scavenger. 1. A gravity filter comprising:a loose filter bed comprising ion exchange resin particles and activated carbon particles; anda porous non-woven filter substrate disposed downstream of the loose filter bed, wherein the porous non-woven filter substrate comprises an impregnated heavy metal scavenger.2. The filter of wherein the ion exchange resin is a weak acid cationic exchange resin claim 1 , a strong cation exchange resin claim 1 , or combinations thereof.3. The filter of wherein the ion exchange resin is a copolymer of acrylic acid.4. The filter of wherein the ion exchange resin is a sulfonic acid resin.5. The filter of wherein the porous non-woven filter substrate is impregnated with activated carbon.6. The filter of wherein the porous non-woven filter substrate comprises a binder.7. The filter of wherein the binder comprises a hydrophobic binder claim 1 , a hydrophilic binder claim 1 , or combinations thereof.8. The filter of wherein the heavy metal scavenger is amorphous titanium silicate.9. The filter of wherein the porous non-woven substrate comprises cellulose and glass fibers.10. The filter of wherein the porous non-woven substrate comprises from about 18 to about 30% by weight amorphous titanium silicate.11. The filter of wherein the porous non-woven substrate comprises an average pore size of from about 3 μm to about 14 μm.12. The filter of wherein the porous non-woven substrate comprises an average pore size of from about 5 μm to about 7 μm.13. The filter of wherein the loose bed comprises about 20 to about 70% by weight ion exchange resin.14. The filter of wherein the loose bed comprises about 30 to about 70% by weight activated ...

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Номер записи: 28
06-02-2014 дата публикации

SELECTIVE SULPHATE REMOVAL BY EXCLUSIVE ANION EXCHANGE FROM HARD WATER WASTE STREAMS

Номер: US20140034575A1
Автор: Bratty Michael, KRATOCHVIL David
Принадлежит: BIOTEQ ENVIRONMENTAL TECHNOLOGIES INC.

The invention provides waste water treatment processes utilizing an ion exchange resin to remove sulphate anions, while adjusting the pH of the ion exchange loading solution with carbon dioxide gas. The effect of the resin loading reactions is that dissolved sulphate is replaced with sequestered carbon dioxide gas, in the form of dissolved bicarbonate, in the treated water and the cations are not removed from the solution. 1. A method for selective removal of sulfate anions from aqueous solutions bearing calcium cations , the method comprising:(a) contacting a wastewater stream with an anion exchange resin in a reactor, to form a resin loading solution, wherein:i) the wastewater has an initial dissolved sulfate concentration that is higher than a desired discharge sulfate concentration, wherein the initial dissolved sulfate concentration is equal to or lower than the saturated concentration of sulfate as gypsum in the wastewater;ii) the dissolved sulfate is a major anion requiring treatment in the wastewater comprising at least 50% of the total anions requiring treatment in the wastewater;iii) the pH of the wastewater is in the range of 6 to 12; and,(b) adding carbon dioxide to the wastewater stream upstream of the reactor or in the reactor so as to treat the resin loading solution with a carbon dioxide gas stream so that the pH of the resin loading solution is maintained below a contacting pH of 9.5 while sulfate anions are loaded onto the resin in exchange for hydroxyl anions, to produce a treated water stream and a loaded resin, wherein:(i) the treated water stream has a lower dissolved sulfate concentration than the wastewater stream and the sulfate removed is stoichiometrically replaced by bicarbonates or carbonates, said bicarbonates or carbonates generated from a reaction between carbon dioxide, hydroxyl anions, and water;(ii) an amount of dissolved calcium in the treated water stream is equal to the amount of dissolved calcium in the wastewater, less the ...

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Номер записи: 29
06-02-2014 дата публикации

METHOD FOR TREATING DRINKING WATER BY MEANS OF A REPLACEABLE CARTRIDGE FILTERING SYSTEM

Номер: US20140034579A1
Автор: Cagnoni Serena
Принадлежит: STRUTTURA S.r.l.

A method for treating drinking water by modifying the ion concentration in the filtered water by means of a replaceable cartridge filtering system comprises: —defining a plurality of types of water to be filtered on the basis of chemical and physical features of the water to be treated; —defining a plurality of classes of filtered water to be obtained with the filtering system on the basis of chemical and physical features of the filtered water; —providing a plurality of filter cartridges containing a filtering material based on a mixture of two or more ion exchange resins, the mixture being formed from predetermined proportions of the two or more resins, each cartridge of the plurality of cartridges having a different mixture of the two or more resins and being capable of retaining ions from, and/or releasing ions into, the water filtered in the filtration process; —correlating one or more of the classes of filtered water with each cartridge of the plurality of cartridges for each type of water to be filtered; —selecting a cartridge from the plurality of cartridges in order to obtain a desired class of filtered water on the basis of a specified type of water to be filtered. 1. A method for treating drinking water by modifying the ion concentration in the filtered water by a replaceable cartridge filtering system , the method comprising:defining a plurality of types of water to be filtered on the basis of chemical and physical features of the water to be treated;defining a plurality of classes of filtered water to be obtained with the filtering system on the basis of chemical and physical features of the filtered water, said classes of filtered water being selected according to the concentration of certain ions in the filtered water, said ions being selected from a group comprising calcium, magnesium, sodium, potassium, fluorine and manganese;providing a plurality of filter cartridges containing a filtering material based on a mixture of two or more ion exchange ...

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Номер записи: 30
20-02-2014 дата публикации

ION-EXCHANGE FIBERS AND METHOD FOR PRODUCING SAME, METHOD FOR REMOVING AND ADSORBING CHEMICAL SUBSTANCE IN WATER, AND DEVICE FOR REMOVING AND ADSORBING CHEMICAL SUBSTANCE IN WATER

Номер: US20140048489A1
Автор: Hirai Yusuke, Matsumoto Yoshitomo, Michinobu Takao, Mio Wataru, TAMURA Masanobu
Принадлежит: KANEKA CORPORATION

Provided is an ion-exchange fiber including a polymer A obtained by introducing an ion-exchangeable substituent to 100 parts by weight of an acrylic polymer that is obtained by polymerization of a monomer composition containing 30% by weight or more of acrylonitrile with respect to 100% by weight of the composition and a polymer B obtained by introducing an ion-exchangeable substituent to 1 part by weight or more and 100 parts by weight or less of an epoxy group-containing polymer. Each ion-exchangeable substituent is introduced by reaction with an amine compound and is an ion-exchangeable substituent derived from the amine compound. A method for producing the ion-exchange fiber is also provided. 1. An ion-exchange fiber comprising:a polymer A obtained by introducing an ion-exchangeable substituent to 100 parts by weight of an acrylic polymer, the acrylic polymer being obtained by polymerization of a monomer composition containing 30% by weight or more of acrylonitrile with respect to 100% by weight of the composition; anda polymer B obtained by introducing an ion-exchangeable substituent to 1 part by weight or more and 100 parts by weight or less of an epoxy group-containing polymer,each ion-exchangeable substituent being introduced by reaction with an amine compound and being an ion-exchangeable substituent derived from the amine compound.2. The ion-exchange fiber according to claim 1 , wherein the acrylic polymer is a modacrylic polymer obtained by polymerization of a monomer composition containing 30% by weight or more and 70% by weight or less of acrylonitrile claim 1 , 30% by weight or more and 70% by weight or less of a halogen-containing vinylidene monomer and/or a halogen-containing vinyl monomer claim 1 , and 0% by weight or more and 10% by weight or less of a vinyl monomer copolymerizable with them claim 1 , with respect to 100% by weight of the composition.3. The ion-exchange fiber according to claim 1 , wherein the amine compound includes a compound ...

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Номер записи: 31
06-03-2014 дата публикации

Nanoporous Silica Polyamine Composites with Surface-bound Zirconium (IV) and Methods of Use

Номер: US20140066529A1
Автор: Kailasam Varadharajan, Nielsen Daniel, ROSENBERG Edward
Принадлежит: The University of Montana

Silica polyamine composites (SPC) made from silanized amorphous nano-porous silica gel and poly(allylamine) (BP-1) were functionalized with phosphorus acid using the Mannich reaction, resulting in a phosphonic acid modified composite (BPAP). Zirconium (IV) was immobilized on BPAP. Arsenate anions strongly adsorbed on the ZrBPAP composite in the pH range 2 to 8, while arsenite only adsorbed well at pH 10. Regeneration of the resin was carried out successfully for As(V) and As(III) using 2M-HSO. Four adsorption/desorption cycles were performed for As(V) at pH 4 without significant decrease in the uptake performance. ZrBPAP capture capacity and kinetics for arsenate were tested for longevity over 1000 cycles with only a marginal loss of performance. 1. A resin for removing at least one metal from a liquid solution , the resin comprising:a matrix-polyamine base, said matrix-polyamine base comprising the reaction product of a polyamine with a short chain hydrocarbylsilyl formed from first silanizing a matrix surface by hydrating said surface and reacting said hydrated surface with a short chain trifunctional silane having (a) hydrocarbon substituents containing 1-6 carbon atoms, (b) trifunctional leaving groups providing sites for covalently bonding said hydrocarbylsilyl to said matrix surface through Si—O bonds, and (c) terminal leaving groups providing sites for covalently bonding said polyamine to said hydrocarbylsilyl through N-hydrocarbyl bonds; and secondly reacting said polyamine with said hydrocarbylsilyl formed from the silanization of said hydrated surface so as to form an aminohydrocarbyl polymer covalently bound to said matrix surface, said aminohydrocarbyl polymer having non-crosslinked amino groups multisite bound to said hydrocarbylsilyl;wherein the matrix-polyamine base is functionalized with phosphorus acid by the Mannich reaction, and surface-bound with zirconium.2. The resin of claim 1 , wherein said at least one metal is arsenic.3. The resin of claim ...

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Номер записи: 32
20-03-2014 дата публикации

Twin tank water treatment method

Номер: US20140076813A1
Автор: Andrew F. Tischendorf, Kenneth J. Sieth, Michael A. Stewart, Rahul Sadashiv Kamble
Принадлежит: Pentair Residential Filtration LLC

Embodiments of the invention provide a twin tank water treatment system and method. The water treatment system includes first tank with a first set of sensors and a first resin bed, a second tank with a second set of sensors and a second resin bed, and a valve assembly with a flow meter and a controller in communication with the first set of sensors, the second set of sensors, and the flow meter. The method includes determining when the resin beds are exhausted based on input from the flow meter, the sensors, and a water hardness setting.

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Номер записи: 33
27-03-2014 дата публикации

CHITOSAN DERIVATIVE, A METHOD FOR ITS PREPARATION AND ITS USE AS AN ADSORPTION AGENT

Номер: US20140083947A1
Автор: Al-Sarra Ibrahim Abdallah, Alanazi Fars Kaed, Radwan Awwad Abdoh
Принадлежит: KING SAUD UNIVERSITY

The present invention relates to a cross-linked thiazolidinone chitosan dibenzo crown ether, a method for its preparation as well as its use as adsorbent. 3. (canceled)4. Method according to claim 2 , wherein the alpha-mercaptocarboxylic acid is mercaptoacetic acid.5. Method according to claim 2 , wherein the beta-mercaptocarboxylic acid is beta-mercaptopropionic acid.6. (canceled)7. Method according to claim 3 , wherein the organic solvent is 1 claim 3 ,4-dioxane.8. Method according to claim 2 , wherein step (i) takes place under microwave irradiation.9. Method according to claim 8 , wherein the power of the microwave irradiation is in a range from 30-300 W.10. Method according to claim 8 , wherein the irradiation time is in a range from 1-60 min.11. Method of adsorbing metal ions comprising exposing metal ions to the chitosan derivative according to .12. Method according to claim 11 , wherein the metal ions are heavy metal ions.13. Method according to claim 11 , wherein the chitosan derivative is recycled after adsorption by removal of the metal ions via acidic treatment.14. Method according to claim 11 , wherein the metal ions are removed from water.15. Method according to for the separation of mercury ions from other metal ions by selective adsorption. The present invention relates to a chitosan derivative, a method for its preparation and its use as an adsorption agent.Heavy metals are highly toxic already at low concentrations and can accumulate in living organisms, causing several disorders and diseases. As a result of industrialization and urbanization, the presence of heavy metal ions in water streams has readily increased in the last 50 years. Removal of heavy metal ions from wastewater is essential because of their extreme environmental, public health, and economic impacts.The main techniques that have been used on metal content reduction from industrial waste are chemical precipitation, ion exchange, membrane filtration, electrolytic methods, reverse ...

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Номер записи: 34
03-04-2014 дата публикации

APPARATUS AND METHOD FOR IONIC CONTAMINANT REMOVAL IN LIQUIDS

Номер: US20140091038A1
Автор: Mueller Anja
Принадлежит: CENTRAL MICHIGAN UNIVERSITY

The present application provides an apparatus for removal of an ionic contaminant from a liquid comprising a branched polymer, a filtration membrane, and a filter casing. The application also provides a method of removing an ionic contaminant from a liquid, the method comprising directing ion-contaminated liquid into and draining treated liquid from an apparatus as described in the instant specification. 1. An apparatus for removal of an ionic contaminant from a liquid comprising:a branched polymer;a filtration membrane; anda filter casing.2. The apparatus of claim 1 , wherein the branched polymer comprises a backbone with a degree of polymerization of about 5 to about 800 or wherein the branched polymer comprises a molecular weight of about 5 claim 1 ,000 to about 1 claim 1 ,000 claim 1 ,000 Da.34-. (canceled)5. The apparatus of claim 1 , wherein the branched polymer comprises a dendrimer or a hyperbranched polymer.6. The apparatus of claim 1 , wherein the branched polymer comprises a primary amine claim 1 , a secondary amine claim 1 , a tertiary amine claim 1 , a quaternary amine claim 1 , or a combination thereof.7. (canceled)8. The apparatus of claim 1 , wherein the branched polymer comprises a perchlorate ion binding site.9. The apparatus of claim 8 , wherein the perchlorate ion binding site comprises tributyl ammonium chloride claim 8 , triethyl ammonium chloride claim 8 , trimethyl ammonium chloride claim 8 , or a combination thereof.10. The apparatus of claim 8 , wherein the perchlorate ion binding site has a stronger binding affinity for perchlorate ions than for nitrate ions claim 8 , or wherein the perchlorate ion binding site has a stronger binding affinity for perchlorate ions than for sulfate ions.1112-. (canceled)13. The apparatus of claim 1 , wherein the filtration membrane comprises pores having a pore size from about 5 kDa to about 30 kDa.14. The apparatus of claim 1 , wherein the filtration membrane comprises about 0.01 mg to about 10 mg of a ...

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Номер записи: 35
10-04-2014 дата публикации

SYNTHESIS OF LAYERED METAL SULFIDE ION-EXCHANGERS

Номер: US20140097141A1
Автор: FARD Zohreh Hassanzadeh, Kanatzidis Mercouri G.
Принадлежит:

Methods for the synthesis of compounds of the formula AMSnS, where x has a value in the range from 0.5 to 1; A is Li, Na, K, or Rb; and M is Mg, Mn, Zn, or Fe, are provided. Also provided are methods of remediating fluid samples using the compounds. 1. A method for the synthesis of a compound of the formula AMSnS , where x has a value in the range from 0.5 to 1; A is Li , Na , Rb , or Cs; and M is Mg , Ca , Mn , Zn , or Fe , wherein the method is a solid state method comprising heating a reaction mixture of ACO , M , S and Sn to a temperature and for a time sufficient to produce the compound of the formula AMSnS , via a solid state reaction.2. The method of claim 1 , wherein the reaction mixture consists of ACO claim 1 , M claim 1 , S and Sn.3. The method of claim 1 , wherein heating the reaction mixture comprises heating the mixture to a temperature of no greater than about 1000° C. for a time of no greater than about 15 hours and further wherein the method provides a yield of the compound having the formula AMSnSof at least about 50% claim 1 , based on total mass.4. The method of claim 1 , further comprising ball milling the reaction mixture prior to heating.5. The method of claim 1 , wherein A is K and M is Mg.6. A method for the synthesis of a compound of the formula AMSnS claim 1 , where x has a value in the range from 0.5 to 1; A is Li claim 1 , Na claim 1 , Rb claim 1 , or Cs; and M is Mg claim 1 , Ca claim 1 , Mn claim 1 , Zn claim 1 , or Fe claim 1 , wherein the method is a hydrothermal method comprising heating a reaction mixture of ACO claim 1 , M claim 1 , S claim 1 , Sn and water to a temperature and for a time sufficient to produce the compound of the formula AMSnS claim 1 , via a hydrothermal reaction claim 1 , and further wherein heating the reaction mixture comprises heating the mixture to a temperature of no greater than about 250° C. for a time of no greater than about 10 hours and further wherein the method provides a yield of the compound having ...

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Номер записи: 36
01-01-2015 дата публикации

Fluid Filtration Medium

Номер: US20150001154A1
Автор: Peterson Stephen L.
Принадлежит:

A method of forming a treated granulized zeolite product includes applying a cationic surfactant to a granulized zeolite material, such that an amount applied to the granulized zeolite material covers at least 20 percent of the ECEC sites of the granulized zeolite material, granulizing a zeolite material to produce the granulized zeolite material, the zeolite material having a d50 in a range of 300 to 30 micron size. 1. A method of forming a treated granulized zeolite product , comprising:applying a cationic surfactant to a granulized zeolite material, such that an amount applied to the granulized zeolite material covers at least 20 percent of the ECEC sites of the granulized zeolite material; andgranulizing a zeolite material to produce the granulized zeolite material, the zeolite material having a d50 in a range of 300 to 30 micron size.2. A method for re-activating spent surfactant treated media , comprising: 'a quantity of cationic surfactant to cover from about 20 percent to about 100 percent of External Cation Exchange sites of the granulized zeolite; and', 'creating an aqueous solution of cationic surfactant, havingcontacting with re-activating solution, followed by backwashing and rinsing the filter media to complete activation.3. A method for treating a zeolite with a surfactant , comprising:installing a quantity of zeolite in a filter vessel;activating the zeolite having a granulized zeolite formed from at least one of a clinoptilolite, mordenite, phillipsite, erionite, chabazite, or faujasite with a prepared amount of cationic surfactant solution to cover from about 20 percent to 100 percent of the External Cation Exchange sites of the granulized zeolite;passing a volume of fluid containing turbid particles through the activated surfactant-treated zeolite;removing an amount of the turbid particles from the fluid with the activated surfactant-treated zeolite; andwherein the cationic surfactant has at least one of polyamines, quaternary amines, alkylamines, ...

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Номер записи: 37
08-01-2015 дата публикации

PROCESS FOR REMOVAL OF RADIOACTIVE CONTAMINATION FROM WASTEWATER

Номер: US20150008186A1
Автор: GASSEN RAINER, MOREIRA DO AMARAL JOSE PEDRO, Sempere-Belda Luis, ZEILER Bertram
Принадлежит:

A process removes radioactive contamination from wastewater obtained in the decontamination of a cooling circuit of nuclear reactors or of parts thereof or in the course of operation of a nuclear reactor. A MnOprecipitate is exclusively produced in the wastewater with the aid of permanganate ions added thereto as an oxidizing agent and of one or more organic reducing agents present in and/or metered into the wastewater, and the MnOprecipitate is separated from the wastewater. 1. A process for removal of radioactive contaminants from wastewaters obtained in a decontamination of a cooling circuit of nuclear reactors or parts thereof or in a course of operation of a nuclear reactor , which comprises the steps of:conducting wastewater first over ion exchangers for removal of metal ions present in the wastewater;{'sub': '2', 'subsequently exclusively producing an MnOprecipitate by adding only an oxidizing agent and a reducing agent to the wastewater and therefore no further additives are added or present, wherein adding permanganic acid as the oxidizing agent and the reducing agent present in the wastewater and/or added to the wastewater being selected from the group consisting of organic reducing agents and reducing agents oxidizable to water; and'}{'sub': '2', 'separating off the MnOprecipitate from the wastewater.'}2. The process according to claim 1 , wherein the reducing agent is selected from the group of compounds also used in the decontamination of the cooling circuit.3. The process according to claim 1 , wherein an oxalic acid and/or a formic acid is used as the reducing agent.4. The process according to claim 1 , wherein the reducing agent is oxidized exclusively to water is added to the wastewater.5. The process according to claim 4 , which further comprises adding hydrogen peroxide to the wastewater.6. The process according to claim 1 , which further comprises adding the permanganic acid and an organic reducing agent in stoichiometric amounts.7. The process ...

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Номер записи: 38
11-01-2018 дата публикации

UREA SULFATE AND SODIUM CHLORIDE BLEND FOR REGENERATION OF CATION EXCHANGE RESINS

Номер: US20180008974A1
Автор: Everson Terrence P., Tan Lylien, Toetschinger Mark, Voss Peter, Wen Li
Принадлежит:

Methods and systems for an integrated acid regeneration of ion exchange resins are disclosed for use in cleaning applications. Acid resins designed for use in a variety of cleaning application using a treated, softened, acidic water source are disclosed. Various methods of using the softened acidic water generated by acid regenerate-able ion exchange resins within a cleaning application, e.g. ware wash machine, are disclosed to beneficially reduce spotting, filming and scale buildup on treated surfaces, reduce and/or eliminate the need for polymers, threshold reagents and/or rinse aids, and using protons generated in the acidic water effluent for triggering events useful in various cleaning applications. 1. A method for treating hard water for use in a cleaning application using an acid regenerated ion exchange resin comprising:contacting a hard water source for use in a dilution system or a ware wash machine with a water treatment composition, wherein the water treatment composition comprises at least one ion exchange resin, wherein the ion exchange resin generates a treated water source by exchanging protons on said resin for dissolved cations including water hardness ions and total dissolved solids in said water source, wherein said ion exchange resin is an acid form or in an inert metal form, and wherein said ion exchange resin is regenerated using an acid salt regenerant;generating the treated water source within a ware wash machine; andproviding the treated water source to a chamber into which articles are placed for cleaning;wherein the treated water source meets a defined water specification, and wherein the water specification is a softened, acidic water with a total dissolved solids (TDS) of less than about 300 ppm, a hardness level of less than about 2 grains and a pH less than about 6,wherein the use of said treated water source improves cleaning efficacy as measured by a reduction in spotting and filming and/or preventing scale build up on articles and ...

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Номер записи: 39
14-01-2021 дата публикации

DRAIN BOX AND FUNNEL

Номер: US20210010182A1
Автор: "ONeill Jerry Edward", Whitney Charlie E.
Принадлежит:

A drain box having a housing, a splash containment therein with a lower portion within a housing drain aperture, and a discharge conduit having a lower portion positioned within the splash containment in position above the drain aperture and extending upward through splash containment aperture, and an upper portion extending upward through a housing upper aperture and terminating above the housing upper portion for connection to an appliance discharge conduit. The conduit being attached to the housing to prevent a lower discharge conduit end from moving downward toward the drain aperture to less than a predetermined minimum distance above the housing drain aperture. 1. A drain box for mounting at least in part within a wall in fluid communication with a drain pipe and a discharge fluid conduit carrying discharge water from an appliance , the box comprising:a housing including a housing top wall, a housing bottom wall, a housing first side wall and a housing second side wall, a housing back wall and a housing front opening providing access into an interior of the housing defined by the housing top, bottom, first side, second side and back walls;a drain aperture in the housing bottom wall;a housing upper aperture in the housing top wall;a funnel positioned within the interior of the housing, the funnel having a funnel upper side wall and a funnel lower side wall defining an interior funnel chamber, the funnel lower side wall having a lower end portion sized to fit within the drain aperture in the housing bottom wall and a lower end funnel chamber aperture in fluid communication with the drain aperture when the lower end portion of the funnel lower side wall is within the drain aperture, the funnel upper side wall having an upper end funnel chamber aperture, at least a portion of the funnel upper side wall being transparent; anda discharge pipe having a lower discharge pipe portion and an upper discharge pipe portion, the lower discharge pipe portion being positioned ...

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Номер записи: 40
09-01-2020 дата публикации

Valve Controller System and Method

Номер: US20200011197A1
Автор: Lindgren Andrew, Mansfield Andrew
Принадлежит:

Embodiments of the invention provide a valve controller configured to network with one or more other valve controllers in a water condition system, providing on-board communication between valves. The valve controller can provide, among other features, improved demand recall, user settings protection, dynamic addressing and automatic master unit selection, network settings push capabilities, and/or descriptive error log displays. 1. A valve controller configured to control a valve in a water conditioning system , the valve controller comprising:a controller housing;a user interface on the controller housing, the user interface including a display and one or more buttons configured to receive user inputs; and communicate with one or more other valve controllers in the water conditioning system,', 'store a plurality of system parameters in memory,', 'control the motor to operate the valve based on one or more of the system parameters,', 'update one or more of the system parameters based on the user inputs received through the user interface, and', 'push the updated system parameters to the one or more other valve controllers in the water conditioning system., 'a control board supported by the controller housing, the control board including a microcontroller in communication with the display, the one or more buttons, and a motor configured to the control the valve, the microcontroller configured to2. The valve controller of claim 1 , wherein the microcontroller is further configured to display an error log to a user via the display claim 1 , wherein each error in the error log includes an error description and a timestamp.3. The valve controller of claim 1 , wherein the microcontroller is further configured to restrict access to the plurality of system parameters unless a specified user input is received claim 1 , the specified user input including one of a pre-set button hold delay claim 1 , a pre-set passcode claim 1 , or a pre-set clock time.4. The valve controller ...

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Номер записи: 41
03-02-2022 дата публикации

METHOD AND APPARATUS TO MONITOR AND CONTROL A WATER SYSTEM

Номер: US20220033279A1
Автор: Branum Scott, Hoefferle Erich
Принадлежит: Evoqua Water Technologies LLC

A system for providing treated water includes a water treatment unit including an inlet water quality probe, a worker bed, a probe to measure a parameter of water from the worker bed, a polisher bed connected downstream from the worker bed and having a probe to measure a parameter of water from the polisher bed, and a flow meter upstream of the worker bed or downstream of the polisher bed. A controller in communication with the flow meter and the probes is configured to receive data from same. A remote server in communication with the local water treatment unit is configured to receive data from the local water treatment unit. The controller or the server may determine a cumulative flow total, a billing cycle flow total, a current exchange flow total, a contaminant load, or a remaining capacity of the water treatment unit. 1. A system for providing treated water , the system comprising:a local water treatment unit includingan inlet water quality probe disposed to measure at least one inlet water parameter of feedwater to be treated, the inlet water quality probe including a conductivity sensor and a temperature sensor,a worker bed having ion exchange media contained therein, and disposed to receive the feedwater to be treated,a worker probe disposed to measure at least one worker water parameter of water from the worker bed, the worker probe including a worker conductivity sensor and a worker temperature sensor,a polisher bed having ion exchange media contained therein, and fluidly connected downstream from the worker bed,a polisher probe disposed to measure at least one polisher water parameter of water from the polisher bed, the polisher probe including a polisher conductivity sensor and a polisher temperature sensor,a flow meter positioned at least one of upstream of the worker bed and downstream of the polisher bed and configured to measure flow data of water introduced into the first local water treatment unit,a controller in communication with the flow meter, ...

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Номер записи: 42
21-01-2016 дата публикации

METHOD OF CONTROLLING DISHWASHER

Номер: US20160015238A1
Автор: JU Byeonghyeon, Kim Heeyeon, LEE Jongmin
Принадлежит:

A method of controlling a dishwasher including washing dishes using washing water in which a detergent is dissolved, draining the washing water in which the detergent is dissolved, first rinsing the dishes using washing water in which no detergent is dissolved, and second rinsing the dishes using washing water in which a descaling agent is dissolved. The dishwasher includes a tub which accommodates the dishes, and a sump which receives the washing water supplied into the tub, and the descaling agent is input during a process of supplying the washing water from the outside of the tub to the sump.

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Номер записи: 43
19-01-2017 дата публикации

Water Supply Assembly for Laundry Washing Machine

Номер: US20170016165A1
Автор: Del Pos Maurizio, Favaro Daniele
Принадлежит: Electrolux Appliances Aktiebolag

A water supply assembly () for laundry washing machines () provided with a detergent drawer () which is structured for receiving a given amount of detergent, softener or other washing agent and is fitted in extractable manner into a corresponding drawer housing (); the water supply assembly () being structured for selectively pouring the water arriving from the fresh-water supply circuit () of the laundry washing machine () into the detergent drawer () so as to selectively flush the detergent, softener or other washing agent out of the same detergent drawer (). 111001151161108100115115. A water supply assembly () for laundry washing machines () provided with a detergent drawer () which is structured for receiving a given amount of detergent , softener or other washing agent and is fitted in extractable manner into a corresponding drawer housing (); the water supply assembly () being structured for selectively pouring the water arriving from a fresh-water supply circuit () of the laundry washing machine () into the detergent drawer () so as to selectively flush the detergent , softener or other washing agent out of the same detergent drawer ();{'b': 1', '2', '2', '116', '115', '115', '116', '3', '108', '2', '4', '2, 'the water supply assembly () being characterized by comprising: a water delivery member () which forms or is associated to the upper lid () of the drawer housing () so as to be located above the detergent drawer () when said detergent drawer () is inserted/recessed into the drawer housing (), and a discrete flow-diverter module () which is connectable to the fresh-water supply circuit () for receiving the fresh water of the water mains and is attached outside the water delivery member () at a coupling socket () formed on the water delivery member ();'}{'b': 2', '4', '5', '6', '8', '9', '2, 'the water delivery member () being provided, at said coupling socket (), with a number of water inlets (, , , ) each separately communicating with a respective water- ...

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Номер записи: 44
26-01-2017 дата публикации

Head and Apparatus for Ion Exchange Service

Номер: US20170022074A1
Автор: Perdue Raymond H.
Принадлежит: ECOLAB USA INC.

Deionization equipment and methods of using such deionization equipment are provided. The deionization equipment allows for improved efficiency in removing spent deionization resin from deionization apparatuses, and also recharging functional deionization resin into deionization apparatuses. Embodiments of the deionization equipment include a resin transfer passage that includes an upper opening, a lower opening and an intermediate opening. 1. A head adapted to be sealably attached to a vessel having an interior , the head comprising:an outer side;an inner side;a first transfer port defining an inlet passage configured to pass water through the head;a second transfer port defining an outlet passage configured to pass water from the vessel, when pressurized, through the head, the outlet passage extending from the inner side of the head to an outlet passage terminus such that, when the head is attached to the vessel, and a resin bed is present in the interior of the vessel, the outlet passage terminus is positioned in the resin bed, the outlet passage terminus configured to prevent resin from escaping the vessel during production of deionized water while allowing deionized water to escape the vessel via the outlet passage; anda third transfer port defining a resin transfer passage configured to pass resin through the head, the resin transfer passage extending from the inner side of the head to a resin transfer passage terminus such that, when the head is attached to the vessel, and the resin bed is present in the interior of the vessel, the resin transfer passage terminus is positioned in the resin bed, the resin transfer passage comprising an upper opening, a lower opening, and an intermediate opening beyond the inner side of the head and above the lower opening.2. The head of claim 1 , wherein the intermediate opening is located within about 50 cm from which the resin transfer passage extends from the inner side of the head.3. The head of claim 1 , wherein the resin ...

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Номер записи: 45
23-01-2020 дата публикации

Ligands for Removal of Liquid Phase Cations and Methods for Same

Номер: US20200023347A1
Автор: Frattini Paul L., Yengoyan Leon
Принадлежит:

The invention provides chemical compounds for binding to a liquid phase cation having the formula R—SO—S—R—SH, wherein Rcomprises a support molecule, such as a polymer, and Rcomprises an alkyl. The polymer may be a crosslinked, polystyrene divinylbenzene copolymer having a plurality of pendant benzyl groups to which the —SO—S—R—SH ligand is attached. The alkyl group may be ethyl or propyl. The chemical compound may be used to complex cation lead or mercury, in which the cation is complexed with mercapto-sulfur of the thio-sulfonyl moiety and the terminal mercaptan to form a heterocyclic ring-like geometry incorporating the cation. A method for removing cations from a liquid stream using the chemical compounds of the present invention is also provided. 1. A chemical compound for binding to a liquid phase cation , comprising:{'sub': 1', '2', '2', '1', '2, 'a chemical compound having the formula R—SO—S—R—SH, wherein Rcomprises a support molecule and Rcomprises an alkyl.'}2. The chemical compound of claim 1 , wherein said support molecule comprises a polymer and said alkyl comprises ethyl.3. The chemical compound of claim 2 , wherein said polymer comprises a crosslinked claim 2 , polystyrene divinylbenzene copolymer having a plurality of pendant benzyl groups to which the —SO—S—R—SH is attached.4. The chemical compound of claim 1 , wherein said support molecule comprises a polymer and said alkyl comprises propyl.5. The chemical compound of claim 4 , wherein said polymer comprises a crosslinked claim 4 , polystyrene divinylbenzene copolymer having a plurality of pendant benzyl groups to which the —SO—S—R—SH is attached.6. A chemical compound bound to a liquid phase cation claim 4 , comprising:{'sub': 1', '2', '2', '1', '2, 'a chemical compound having the formula RSO—S—R—SH, wherein Rcomprises a support molecule and Rcomprises an alkyl; and'}a cation complexed with said chemical compound.7. The chemical compound of claim 6 , wherein said cation is complexed with at least ...

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Номер записи: 46
04-02-2016 дата публикации

SYSTEMS, DEVICES, AND METHODS OF WATER FILTRATION

Номер: US20160031724A1
Автор: DIGHE Ajit, KELLAM Doug, LIEPPE Charles, RAJAN Rajan, WEI Liu Guang
Принадлежит:

Systems, devices, and methods of filtering water include a dome shaped lid and middle disk to separate filtration media materials. The domed shaped lid eliminates air locks in the filter media that can slow or stop the filtration process. A flow control output port regulates the flow level and flow speed of the filtered water. An angled flow output port improves flow by accelerating flow at an angled bottom section of the filter. Water permeable filter bag materials house the filter media. An additional washing process improves the taste of the filtered water. A color change resin in the mixed bed resin indicates expiration of the filter. Similarly, a filter expiration indicator assists users in determining when a filter should be replaced. An integrated TDS meter is used for testing the filtered water. The devices can be used individually or in combination to provide performance improvements. 1. A water filter comprising:a water head layer that receives unfiltered water and that facilitates flow of water through a filtration medium;a filter layer that houses the filtration medium that filters the unfiltered water as the unfiltered water passes through the filtration medium; anda dome shaped lid on top of the water head layer and the filter layer, the dome shaped lid configured to move with the water head layer as the water head layer receives unfiltered water and the unfiltered water passes through the filter layer.2. The water filter of claim 1 , wherein the dome shaped lid includes a float valve that opens and closes as a water level of the water head layer rises and falls.3. The water filter of claim 1 , wherein the dome shaped lid includes a vent through which air from the filter escapes as the dome shaped lid moves with the water head layer claim 1 , preventing air locks in the filter.4. The water filter of claim 1 , wherein the dome shaped lid includes a vent that eliminates air locks in the filter.5. The water filter of claim 1 , wherein the filter medium ...

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Номер записи: 47
04-02-2016 дата публикации

SYNERGISTIC INTERACTION OF WEAK CATION EXCHANGE RESIN AND MAGNESIUM OXIDE

Номер: US20160031735A1
Автор: DAHLQUIST-HOWLETT ERIN JANE, Mills Kristen, Monsrud Lee J., Olson Erik C., Olson Keith E., Smith Kim R.
Принадлежит:

The present invention relates to methods, apparatuses, and systems for treating water. The methods, apparatuses and systems reduce scaling associated with solubilized water hardness using a sequence of water treatment agents, including a first threshold agent shedding weak cation exchange resin and a second magnesium compound conversion agent water treatment. The system or apparatus and methods according to the invention provide synergistic reduction of hard water scaling and elimination of cementing on the insoluble magnesium compound. 1: An apparatus for treating a water source for use in a cleaning application comprising:(a) an inlet for providing a water source to a first treatment reservoir;(b) one or more treatment reservoirs housing (1) a first water treatment agent, wherein said first water treatment agent is an exhausted ionic resin that is incapable of performing ion exchange followed by (2) a second water treatment agent consisting of a metal oxide and/or hydroxide compound, wherein the first water treatment agent sheds a threshold agent;(c) an outlet for providing treated water from the one or more treatment reservoirs; and(d) a treated water delivery line for providing the treated water to a cleaning application, wherein the solubilized water hardness in the treated water source does not result in hard water scaling.2: The apparatus of claim 1 , wherein the metal oxide and/or hydroxide is selected from the group consisting of insoluble metal oxides claim 1 , insoluble metal hydroxides and combinations thereof.3: The apparatus of claim 2 , wherein the metal oxide and/or hydroxide is selected from the group consisting of magnesium oxide claim 2 , magnesium hydroxide claim 2 , aluminum oxide claim 2 , aluminum hydroxide claim 2 , titanium oxide claim 2 , titanium hydroxide and combinations thereof.4: The apparatus of claim 1 , wherein the ionic resin is a weak cation exchange resin selected from the group consisting of a gel type resin structure claim 1 , ...

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Номер записи: 48
04-02-2021 дата публикации

COMPOSITIONS AND METHODS TO REMOVE AMMONIA IN FRESHWATER AND SALTWATER FISH STORAGE SYSTEMS

Номер: US20210029977A1
Автор: Alcantar Norma Arcelia, Zhao Wen
Принадлежит:

Compositions, systems and methods of removing ammonia from fish storage systems are presented. A chemical water conditioner comprised of sodium formaldehyde bisulfite, cornstarch, dye and alcohol was found to have a high ammonia removal efficiency in seawater. A combination of this chemical water conditioner with modified chabazite and phosphate buffer exhibited high ammonia removal efficiency in both seawater and freshwater. 1. A method of manufacturing an ammonia removal agent for use in removing ammonia from seawater comprising:combining an amount of sodium formaldehyde bisulfite, an amount of corn starch, an amount of dye, and an amount of alcohol to form the ammonia removal agent.2. The method of claim 1 , wherein the amount of sodium formaldehyde bisulfite is about 10 g.3. The method of claim 2 , wherein the amount of cornstarch is about 1 g.4. The method of claim 3 , wherein the amount of dye is about 0.15 g.5. The method of claim 4 , wherein the amount of alcohol is about 1 mL.6. A system for removing ammonia from seawater in a fish storage system comprising:a water environment containing ammonia; and an amount of sodium formaldehyde bisulfite;', 'an amount of cornstarch;', 'an amount of dye; and', 'an amount of alcohol., 'a water conditioner wherein the water conditioner comprises7. The system of claim 6 , further comprising an amount of refill water wherein the refill water is used to replace at least ⅔ of the seawater in the fish storage system once per day.8. The system of claim 6 , further comprising an ammonia removal agent comprising:a freshwater or seawater modified chabazite compound and an amount of a phosphate buffer.9. The system of claim 8 , wherein the freshwater or seawater modified chabazite compound is coated with a dye.10. The system of claim 6 , wherein the amount of sodium formaldehyde bisulfite is about 10 g claim 6 , the amount of cornstarch is about 1 g claim 6 , the amount of dye is about 0.15 g claim 6 , and the amount of alcohol is ...

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Номер записи: 49
05-02-2015 дата публикации

WASHING DEVICE AND WASHING METHOD

Номер: US20150034496A1
Автор: Kawazu Takeshi, Yano Hirotsugu, Yoshida Akira
Принадлежит:

A washing device includes a container () in which aqueous solution is contained, an adsorption electrode () which is placed in the container () and on which adsorption and desorption of ions in the aqueous solution can be brought about, a counter electrode () which is placed in the container () so as to face the adsorption electrode (), a direct-current power source () for applying a voltage between the adsorption electrode () and the counter electrode (), and a switching circuit () for switching polarity of the voltage applied between the adsorption electrode () and the counter electrode (). A control device () controls the direct-current power source () and the switching circuit () and has a first mode in which first functional water is produced by release of cations into the aqueous solution from the adsorption electrode () or adsorption of anions in the aqueous solution onto the adsorption electrode () with the adsorption electrode () set as anode and with the counter electrode () set as cathode. Thus the washing device capable of efficiently producing functional water having undergone hardness control and pH control is provided with use of a simple configuration. 118-. (canceled)19. A washing device comprising:a container in which aqueous solution is contained,an adsorption electrode which is made of porous carbon material and which is placed in the container and on which adsorption and desorption of ions in the aqueous solution can be brought about,a counter electrode which is placed in the container so as to face the adsorption electrode,voltage application means which applies a voltage between the adsorption electrode and the counter electrode,polarity switching means which switches polarity of the voltage applied between the adsorption electrode and the counter electrode, andcontrol means which controls the voltage application means and the polarity switching means, whereinthe control means has a first mode in which first functional water is produced by ...

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Номер записи: 50
05-02-2015 дата публикации

METHOD FOR SELECTIVELY BINDING AND SEPARATING PHOSPHATE ANIONS

Номер: US20150034560A1
Автор: Marrese Carl A., Mason Andrew F., Terry Tracy J.
Принадлежит:

Disclosed is a method for selectively binding and separating phosphate anions from a liquid medium by providing a cross-linked molecularly imprinted polymer including cross-linked chitosan having selective binding affinity for phosphate ions, phosphate containing molecules, or a combination of both. 1. A method for selectively binding and separating phosphate anions from a liquid medium , said method comprising:(a) providing a cross-linked molecularly imprinted polymer comprising cross-linked molecularly imprinted chitosan having complementary molecular cavities having a selective binding affinity for phosphate ions, phosphate containing molecules, or a combination of both; and(b) contacting the cross-linked molecularly imprinted polymer with the liquid medium, wherein any phosphate ions, phosphate containing molecules, or a combination of both present in the liquid medium are selectively removed from the liquid medium and sequestered in the cross-linked molecularly imprinted polymer.2. The method of claim 1 , wherein the liquid medium is an aqueous medium.3. The method of claim 1 , wherein the liquid medium is passed through a column or bed comprising one or more of the cross-linked molecularly imprinted polymers. This application is a divisional of prior-filed, co-pending U.S. Nonprovisional application Ser. No. 13/152,342, filed Jun. 3, 2011, which claims priority to and the benefit of U.S. Provisional Application Ser. No. 61/352,005, filed Jun. 7, 2010, now expired, the entire contents of which are herein incorporated by reference.The present invention generally relates to molecularly imprinted materials, and, more particularly, to a cross-linked molecularly imprinted polymer material having selective binding sites for phosphate ions, phosphate containing molecules, or a combination of both.The concept of molecularly imprinting molecules may be traced to suppositions about the operation of the human immune system made by Stuart Mudd, circa 1930, and Linus ...

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Номер записи: 51
08-02-2018 дата публикации

WATER TREATMENT APPARATUS AND OPERATION METHOD FOR WATER TREATMENT APPARATUS

Номер: US20180037477A1
Автор: OOE YOSHINAO, SASABE SHIGERU, Suzuki Daisuke, TANI TOMOKO, UNO Katsuhiko
Принадлежит:

A water treatment apparatus of the present disclosure includes an electrochemical cell provided with an inlet and an outlet, a power supply that supplies electric power to electrodes, a first water flow path connected with the inlet, a second water flow path connected with the outlet, a soft water supply unit that feeds soft water to the inlet, and a flow adjustor that regulates a flow rate of water passing through the second water flow path. The water treatment apparatus further includes a controller that controls electric power supplied from the power supply to the electrodes, the flow rate of water passing through the second water flow path by use of the flow adjustor, and soft water fed to the inlet by use of the soft water supply unit when a process for regenerating the electrochemical cell is executed. As a result, the apparatus can reduce the hardness and electric conductivity of water fed into the electrochemical cell during regeneration of an ion exchange membrane and restrain scale formation. 1. A water treatment apparatus comprising: a casing provided with an inlet and an outlet,', 'a pair of electrodes disposed in the casing, the electrodes forming an anode and a cathode opposing each other, and', 'an ion exchange membrane disposed between the anode and the cathode, the ion exchange membrane including a cation exchange substrate and an anion exchange substrate;, 'an electrochemical cell including'}a power supply that supplies electric power to the electrodes;a first water flow path connected with the inlet;a second water flow path connected with the outlet;a soft water supply unit that feeds soft water to the inlet;a flow adjustor that is provided on the second water flow path and regulates a flow rate of water passing through the second water flow path;a controller that controls electric power supplied from the power supply to the electrodes, the flow rate of water passing through the second water flow path by use of the flow adjustor, and the soft ...

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Номер записи: 52
08-02-2018 дата публикации

STEAM GENERATOR SYSTEM, CONTROL METHOD AND HOUSEHOLD APPLIANCE

Номер: US20180038585A1
Автор: MING Lele, ZHANG Chaolei, ZHANG Hui, ZHANG Jizhe
Принадлежит:

The present invention relates to a steam generator system (), a control method and a household appliance. The steam generator system () comprises: a steam generator () comprising a housing () having a water inlet () and a steam outlet (), and a heating element () provided in the housing (); a water pump () connected between a water tank () and the water inlet (); a water softener (), wherein the water tank (), the water pump () and the water inlet () are in communication with each other to form a water inlet pipeline, and the water softener () is connected to the water inlet pipeline in series. 1. A steam generator system , comprising:a water tank;a steam generator comprising a housing having a water inlet and a steam outlet, and a heating element provided in the housing;a water pump connected between the water tank and the water inlet; anda water softener, wherein the water tank, the water pump and the water inlet of the steam generator are in communication with each other to form a water inlet pipeline, and the water softener is connected to the water inlet pipeline in series.2. (canceled)3. The steam generator system according to claim 1 , wherein V represents a flow rate of the water pump claim 1 , and when the steam generator is in operation claim 1 , the water pump continuously pumps water in the water tank into the housing at a flow rate of 20 ml/min≦V≦100 ml/min.4. The steam generator system according to claim 3 , wherein the housing has a sealed chamber claim 3 , a dividing wall is formed in the housing to divide the chamber into an outer chamber and an inner chamber spaced apart from each other claim 3 , at least one communication groove is formed in the dividing wall to make the outer chamber in fluid communication with the inner chamber claim 3 , the water inlet is in communication with the outer chamber claim 3 , the steam outlet is in communication with the inner chamber claim 3 , and the heating element is provided to the dividing wall to heat the ...

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Номер записи: 53
18-02-2021 дата публикации

WATER CONDITIONING SYSTEMS

Номер: US20210047222A1
Автор: Haag Adrian, Harrington William, Hirsch Kai, Huda Stephen P., Stockfleit Michael
Принадлежит:

Water conditioning systems are shown and described. The water conditioning systems include a water conditioner having a plurality of conditioning stages along a flow path between an inlet and an outlet that are configured to condition water. The plurality of conditioning stages include a pre-filter stage, a feed pump, a reverse osmosis stage, and a post-filter stage. A pure water valve is arranged between the feed pump and the reverse osmosis stage and a boost valve is arranged between the feed pump and the outlet. The pure water valve is configured to selectively allow water to flow from the feed pump, through the reverse osmosis stage and the post-filter stage, prior to exiting through the outlet, and the boost valve is configured to selectively allow water to flow from the boost pump directly to the outlet and bypassing the reverse osmosis stage and the post-filter. 1. A water conditioning system , comprising:a water conditioner having a plurality of conditioning stages arranged along a flow path between an inlet and an outlet and configured to condition water, the plurality of conditioning stages comprising, in a direction of flow along the flow path, a pre-filter stage, a feed pump, a reverse osmosis stage, and a post-filter stage;a pure water valve arranged between the feed pump and the reverse osmosis stage; anda boost valve arranged between the feed pump and the outlet,wherein the pure water valve is configured to selectively allow water to flow from the feed pump, through the reverse osmosis stage and the post-filter stage, prior to exiting through the outlet, andwherein the boost valve is configured to selectively allow water to flow from the boost pump directly to the outlet and bypassing the reverse osmosis stage and the post-filter stage.2. The water conditioning system of claim 1 , further comprising a one-way valve arranged between the post-filter stage and the outlet.3. The water conditioning system of claim 1 , further comprising a water counter ...

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Номер записи: 54
06-02-2020 дата публикации

Liquid Treatment System

Номер: US20200041478A1
Автор: Bowden Harvey
Принадлежит:

The present invention relates to a liquid treatment system having a sensor comprising a body, the body having a sensing material disposed therein, the sensing material being subject to a change in size in response to a composition of a liquid flowing therethrough; an actuating means disposed within the body and associated with the sensing material; wherein the actuating means is movable between a first position and a second position in response to the change in size of the sensing material to thereby mechanically actuate a switch member, such that when the actuating means is in the first position, flow of an actuating stream of the liquid is allowed by the switch member to thereby hydraulically actuate operation of the liquid treatment system; and when the actuating means is in the second position, flow of the actuating stream of the liquid is prevented by the switch member. 1. A liquid treatment system , comprising:a liquid treatment tank;a sensing material disposed within the liquid treatment tank, the sensing material being subject to a change in size in response to a composition of a liquid flowing therethrough;an actuating means associated with the sensing material;wherein the actuating means is movable between a first position and a second position in response to the change in size of the sensing material to thereby mechanically control operation of an actuating stream outlet, such that when the actuating means is in the first position, flow of an actuating stream of the liquid via the actuating stream outlet is allowed to thereby hydraulically actuate operation of the liquid treatment system; and when the actuating means is in the second position, flow of the actuating stream of the liquid via the actuating stream outlet is prevented.2. The liquid treatment system according to claim 1 , further comprising a switch member operable with the actuating means; wherein the switch member is adapted to open the actuating stream outlet thereby allowing flow of the ...

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Номер записи: 55
16-02-2017 дата публикации

System for recovering multiple kinds of ions

Номер: US20170044032A1
Автор: Byoung Gyu Kim, Hye Jin Hong, In Su Park, Jung Ho Ryu, Kang Sup Chung, Tae Gong Ryu
Принадлежит: Korea Institute of Geoscience and Mineral Resources KIGAM

The present disclosure relates to a system for recovering multiple kinds of ions, which includes: an ion adsorption tank that includes a plurality of adsorption channels arranged in parallel and including a first electrode unit electrically adsorbing only negative ions and a second electrode unit having an adsorbent layer for adsorbing positive ions to be recovered from positive ions, in which electricity is independently supplied to the adsorption channels; a water tank that keeps liquid discharged from the ion adsorption tank; a pump that circulates mother liquor or liquid stored in the water tank; and an ion recovering tank that keeps liquid containing positive ions to be recovered. According to the present disclosure, a series of processes make it possible to continuously recover ions to be recovered, so the operation efficiency of the system can be maximized.

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Номер записи: 56
19-02-2015 дата публикации

WATER SOFTENING COMPOSITIONS AND METHODS

Номер: US20150048029A1
Автор: Brown Geoffrey A., Linscott Darlene R., Poe Jerry L., Shelite Kristopher Lee
Принадлежит:

Novel water softening products and methods of treating hard water are provided. The products comprise a salt and a metal chelating agent. The products are useful for regenerating ion exchange material in a water softening system and providing softened water containing both sodium and potassium ions, while having dramatically increased efficiencies over prior art products. 1. A method of increasing the efficiency of a salt at treating water , the method comprising contacting an ion exchange material with an aqueous solution or dispersion comprising the salt and a metal chelating agent to yield a regenerated ion exchange material , wherein , during said contact , at least about 50% more metal ions are removed than under the same conditions but in the absence of said metal chelating agent.2. The method of claim 1 , wherein said metal chelating agent is present in said aqueous solution or dispersion at levels of less than about 75 ppm claim 1 , based on the salt.3. The method of claim 1 , wherein said metal chelating agent is selected from the group consisting of sodium citrate claim 1 , potassium citrate claim 1 , sodium succinate claim 1 , potassium succinate claim 1 , aspartate claim 1 , maleate claim 1 , ethylenediamine tetraacetate claim 1 , ethylene glycol tetraacetate claim 1 , polyacrylate claim 1 , polymaleate claim 1 , polymerized amino acids claim 1 , 1 claim 1 ,2-bis(o-aminophenoxy)ethane-N claim 1 ,N claim 1 ,N′ claim 1 ,N′-tetraacetate claim 1 , sulfonated polycarboxylate copolymers claim 1 , and polymethacrylate.4. The method of claim 2 , wherein said metal chelating agent is selected from the group consisting of sodium citrate claim 2 , potassium citrate claim 2 , sodium succinate claim 2 , potassium succinate claim 2 , aspartate claim 2 , maleate claim 2 , ethylenediamine tetraacetate claim 2 , ethylene glycol tetraacetate claim 2 , polyacrylate claim 2 , polymaleate claim 2 , polymerized amino acids claim 2 , 1 claim 2 ,2-bis(o-aminophenoxy)ethane-N ...

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Номер записи: 57
08-05-2014 дата публикации

UNIHOUSING PORTABLE WATER FILTRATION SYSTEM

Номер: US20140124428A1
Автор: Simonette Dallas W.
Принадлежит: IPC EAGLE CORPORATION

A water improvement/purification container has: a) an elongated housing; b) a water entry; c) two water exit ports adjacent one distal end of the housing; d) the water port providing supply water first to a macrofilter within the housing; e) the intermediate water source exiting the macrofilter flowing into a reverse osmosis membrane; f) the intermediate water being separated into two streams, g) the first stream being vented through the second of the two water exit ports; and h) the second stream being vented out of the housing as waste water through the first of the two water exit ports. 2) A water purification container comprising:a) an elongated housing;b) a water entry port adjacent one proximal end of the housing which receives supply water; i) a first of the two water exit ports venting waste water; and', 'ii) a second of the two water exit ports venting product water having lower concentrations of at least some dissolved materials than both the supply water and the waste water;, 'c) two water exit ports adjacent one distal end of the housing;'}d) the water port providing supply water first to a macrofilter within the housing that filters at least solid particles and chlorine from the supply water to form an intermediate feed water source;e) the intermediate water source exiting the macrofilter flowing into a chamber housing a reverse osomosis membrane;f) the intermediate water being separated by the reverse osmosis membrane into two streams, one stream having at least 98% by weight of dissolved alkaline cationic materials or alkali cationic materials removed from the intermediate water and a second stream having less than 2% by weight of dissolved alkaline cationic materials or alkali cationic materials removed from the intermediate water;g) the first stream being vented out of a core tube in the reverse osmosis membrane through into a secondary internal vessel containing deionizing resin;h) the deionizing resin removing the balance of dissolved alkaline ...

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Номер записи: 58
26-02-2015 дата публикации

WATER TREATMENT

Номер: US20150053620A1
Автор: LIU Dan, Suri Rominder P.S.
Принадлежит:

The present invention features compositions and methods for reducing the concentration of an endocrine disrupting agent in an aqueous solution. We describe compositions comprising various polymeric resins. The methods can be used to reduce the concentration of endocrine disrupting agents, including estrogens, perfluorinated compounds and bisphenol A in an aqueous solution. 1. A method of reducing the concentration of an endocrine disrupting agent in an aqueous solution , the method comprising:(a) providing an aqueous solution;(b) contacting the aqueous solution with a polymeric resin in an amount and for a time sufficient to substantially bind the agent to the resin.2. The method of claim 1 , further comprising the step of separating the contacted aqueous solution from the polymeric resin.3. The method of claim 1 , wherein the aqueous solution comprises waste water.4. The method of claim 1 , wherein the endocrine disrupting agent is an estrogen claim 1 , a perfluorinated compound claim 1 , or bisphenol A.5. The method of claim 4 , wherein the estrogen is selected from the group consisting of 17α-ethynyl estrodiol claim 4 , estriol claim 4 , 17β-estrodiol claim 4 , 17α-estrodiol claim 4 , estrone claim 4 , 17α-dihydroequilin claim 4 , trimegestone claim 4 , medrogestone claim 4 , progesterone claim 4 , norgestrel claim 4 , gestodene claim 4 , and equilin.6. The method of claim 4 , wherein the perfluorinated compound is selected from the group consisting of perfluorotridecanoic acid claim 4 , tricosafluorododecanoic acid claim 4 , perfluoroundecanoic acid claim 4 , perfluorodecanoic acid claim 4 , perfluorooctanoic acid tridecafluorononanoic acid claim 4 , perfluoroheptanoic acid claim 4 , undecafluorohexanoic acid heptadecafluorooctanesulfonic acid potassium salt claim 4 , and tridecafluorohexane-1-sulfonic acid potassium salt.7. The method of claim 4 , wherein the endocrine disrupting agent is bisphenol A.8. The method of claim 4 , wherein the aqueous solution ...

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Номер записи: 59
23-02-2017 дата публикации

Surface or Submersible Sluiceable Filtration System for Hazardous or Radioactive Waste Water

Номер: US20170050865A1
Автор: Jeffrey T. Prince, Mark Denton
Принадлежит: Mtn Group LLC

Surface or submersible sluiceable system for use in removing hazardous contaminants or radioactive isotopes from a fluid stream, such as a fluid stream from the primary coolant loop or secondary loop of a nuclear reactor system, a fluid stream from a spent-fuel pool or pond or hazardous or radioactive contaminants in ground water. Generally, this surface or submersible sluiceable system is adapted to be utilized in a surface skid or submersed in the fluid stream, and additionally the vessels are adapted to be sluiced and reused after use, resulting in a potentially stabilized, non-leaching final waste product with a substantially reduced volume for storage or disposal. The system can be utilized with any type of media, whether standard ion exchange beads or inorganic granular media.

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Номер записи: 60
13-02-2020 дата публикации

Method of Initiating A Liquid Treatment Process In A Liquid Treatment System

Номер: US20200049684A1
Автор: Bowden Harvey
Принадлежит:

A method of initiating a liquid treatment process, comprising steps of: providing a sensing material inside a liquid treatment tank, the sensing material being subject to a change in size in response to a composition of a liquid flowing therethrough; arranging an actuating means in association with the sensing material, the actuating means being movable in response to the change in size of the sensing material; and allowing flow of an actuating stream of the liquid in response to a mechanical movement of the actuating means to thereby hydraulically actuate operation of the liquid treatment system. 1. A method of initiating a liquid treatment process , comprising steps of:providing a sensing material inside a liquid treatment tank, the sensing material being subject to a change in size in response to a composition of a liquid flowing therethrough;arranging an actuating means in association with the sensing material, the actuating means being movable in response to the change in size of the sensing material; andallowing flow of an actuating stream of the liquid in response to a mechanical movement of the actuating means to thereby hydraulically actuate operation of the liquid treatment system.2. The method according to claim 1 , wherein the sensing material and the actuating means are provided as a sensing device claim 1 , the sensing device having a body with the sensing material and the actuating means disposed therein claim 1 , wherein the actuating means moved between a first position and a second position in response to the change in size of the sensing material to thereby mechanically actuate a switch member claim 1 , such that when the actuating means is in the first position claim 1 , flow of the actuating stream of the liquid is allowed by the switch member to thereby hydraulically actuate operation of the liquid treatment system; and when the actuating means is in the second position claim 1 , flow of the actuating stream of the liquid is prevented by the ...

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Номер записи: 61
22-02-2018 дата публикации

Low Salt Alert System

Номер: US20180052033A1
Автор: Hince Randy, Pesz Jeffery Todd, Pulvermacher Ronald
Принадлежит:

A brine tank salt level detection apparatus is disclosed. The apparatus includes a housing secured to a lid of a brine tank, where the housing supports an infrared emitter and an infrared sensor. The apparatus is configured to emit an infrared signal, receive an infrared signal, and determine whether a salt level in the brine tank is below a predetermined level using, at least in part, the receipt of the infrared signal. A method for determining a salt level in a brine tank is also disclosed. The method can include emitting an outgoing infrared signal, receiving an incoming infrared signal, determining whether the salt level is below a predetermined level based at least in part on the receipt of the incoming infrared signal, and when the salt level is below a predetermined level, alerting a user of the low salt level in the brine tank. 120-. (canceled)21. A method for monitoring salt level in a brine tank , the method comprising:emitting a predetermined number of outgoing infrared signals into the brine tank;determining a quantity of received reflected infrared signals;determining whether the quantity of received reflected infrared signals is less than a predetermined threshold; andif the quantity of received reflected infrared signals is less than the predetermined threshold, determining that a low salt condition exists in the brine tank and initiating an alert regarding the low salt condition.22. The method according to claim 21 , each of the predetermined number of outgoing infrared signals being emitted sequentially at a given time.23. The method according to claim 22 , the predetermined number of outgoing infrared signals being no less than 3.24. The method according to claim 23 , the predetermined number of outgoing infrared signals being no less than 10.25. The method according to claim 21 , the predetermined threshold being equal to the predetermined number of outgoing infrared signals.26. The method according to claim 21 , the predetermined threshold being ...

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Номер записи: 62
05-03-2015 дата публикации

Cartridge for the Treatment of Drinking Water and Method for Purifying Drinking Water

Номер: US20150060366A1
Автор: Bissen Monique, Johann Juergen
Принадлежит:

A cartridge for treating drinking water, the cartridge comprising a mixture of an ion-exchange material, one part of which is a highly acidic ion-exchange material and another part of which is a weakly acidic ion-exchange material, wherein one of the materials is loaded with alkali ions or alkaline earth ions. 1. A cartridge for treating drinking water , comprising at least one chamber including an ion-exchange material , a first part of which is loaded with alkali ions or alkaline earth ions , and a second part of which is loaded with hydrogen ions , one of the two parts of the ion-exchange material being provided in form of a highly acidic ion-exchange material and the other part in form of a weakly acidic ion-exchange material.2. The cartridge for treating drinking water as claimed in claim 1 , wherein the first part of the ion-exchange material is provided in form of a highly acidic ion-exchange material and is loaded with alkali ions or alkaline earth ions to at least 60% of its capacity.3. The cartridge for treating drinking water as claimed in claim 1 , wherein the first part of the ion-exchange material is provided in form of a highly acidic ion-exchange material and is loaded with hydrogen ions to at least 50% of its capacity.4. The cartridge for treating drinking water as claimed in claim 1 , wherein the first and second parts of the ion-exchange material are provided in form of a mixed granulated material.5. The cartridge for treating drinking water as claimed in claim 1 , wherein the first and second parts of the ion-exchange material are provided in form of ion-exchange non-woven fabrics.6. The cartridge for treating drinking water as claimed in claim 1 , wherein the first and second parts of the ion-exchange material are provided in a ratio from 1:9 to 9:1.7. The cartridge for treating drinking water as claimed in claim 1 , wherein the cartridge is adapted for use in a gravity-operated household water filter.8. A method for treating drinking water ...

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Номер записи: 63
20-02-2020 дата публикации

SYSTEM AND METHOD OF DEIONIZATION OF WATER

Номер: US20200055750A1
Автор: Hoefferle Erich G., Mildner Stephen, Rozario Isabel
Принадлежит: Evoqua Water Technologies LLC

A method of treating water in a water treatment system after a replacement of an ion exchange bed includes introducing water to be treated into the ion exchange bed of the water treatment system to produce treated water, calculating a current exchange daily average flow rate of water through the water treatment system, calculating a cumulative daily average flow rate of water through the water treatment system, and determining an estimated number of days remaining to exhaustion of the ion exchange bed based on the current exchange daily average flow rate and the cumulative daily average flow rate. 116.-. (canceled)17. A system for providing treated water , the system comprising a first water treatment unit having:a first ion exchange bed having ion exchange media contained therein, and disposed to receive a first water stream to be treated;a first flow meter positioned along a flow path including the first ion exchange bed and configured to measure a first flow rate of the first water stream passing through the first flow path; and 'receive first flow rate data regarding the first flow rate;', 'a first controller in communication with the first flow meter, the first controller configured to calculate a first cumulative average flow rate through the first water treatment unit;', 'determine a first weighted average flow rate from a weighted average of the first current average flow rate and the first cumulative average flow rate; and', 'determine an estimated number of days remaining to exhaustion of the ion exchange media in the first ion exchange bed based on the first weighted average flow rate and a capacity of the ion exchange media of the first ion exchange bed., 'calculate, based on the first flow rate data, a first current average flow rate of the first water stream through the first ion exchange bed;'}18. The system of claim 17 , further comprising a second water treatment unit disposed remotely from the first water treatment unit claim 17 , the second water ...

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Номер записи: 64
22-05-2014 дата публикации

TREATMENT OF WATER, PARTICULARLY FOR OBTAINING ULTRAPURE WATER

Номер: US20140138318A1
Автор: GENSBITTEL Dominique
Принадлежит: OVIVO LUXEMBOURG S.a.r.I.

A process is described for treating water, in particular for obtaining ultrapure water, in which a decationized water stream is passed at least through a first strong base anion exchange bed and a second strong base anion exchange bed, which is arranged downstream, in particular directly downstream, of the first strong base anion exchange bed. Furthermore, a water treatment system and a counter-current ion exchange unit for carrying out such a process are described. 1. A process for treating water , in which a decationized water stream is passed at least through a first strong base anion exchange bed and a second strong base anion exchange bed , which is arranged downstream of the first strong base anion exchange bed.2. The process according to claim 1 , wherein the water stream is at first passed through a weak base anion exchange bed which is arranged upstream of the first strong base anion exchange bed claim 1 , before passing the first strong base anion exchange bed and the second strong base anion exchange bed.3. The process according to claim 1 , wherein the anion exchange beds are arranged in the form of a counter-current ion exchange unit.4. The process according to claim 1 , wherein silica concentration of the water stream is monitored upstream of the second strong base anion exchange bed.5. The process according to claim 4 , wherein the anion exchange beds are regenerated when the silica concentration exceeds a defined threshold value.6. The process according to claim 1 , wherein boron concentration of the water stream is monitored downstream of the second strong base anion exchange bed.7. The process according to claim 6 , wherein a sample of the water stream is passed through a strong acid cation exchange bed downstream of the second strong base anion exchange bed claim 6 , with the strong acid cation exchange bed being arranged between the second strong base anion exchange bed and a boron analyzer.8. The process according to claim 6 , wherein the anion ...

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Номер записи: 65
22-05-2014 дата публикации

WATER SOFTENING DEVICE

Номер: US20140138321A1
Автор: KOCH KENNETH A.
Принадлежит:

A system comprises an input, a brine chamber, a water softening chamber, and an output. One or more valves are configured to selectively prevent fluid communication of water from the input into the brine chamber; and to selectively permit communication of brine from the brine chamber to the water softening chamber when water is not being communicated through the input. The output is configured to output water softened in the water softening chamber. The one or more valves may include a first valve and a second valve. The first valve may be responsive to water being communicated through the input. The second valve may be responsive to either manual actuation or a fluid level in the brine chamber. The system may further include a cartridge that is removably coupled with the water softening chamber. The cartridge may contain salt and may further define the brine chamber. 1. A system , comprising:(a) an input configured to receive water;(b) a brine chamber, wherein the brine chamber is configured to form a brine;(c) a water softening chamber, wherein the water softening chamber is configured to soften water;(d) one or more valves, wherein the one or more valves are configured to selectively prevent fluid communication of water from the input into the brine chamber when water is being communicated through the input, wherein the one or more valves are further configured to selectively permit communication of brine from the brine chamber to the water softening chamber when water is not being communicated through the input; and(e) an output configured to output water softened in the water softening chamber.2. The system of claim 1 , further comprising salt claim 1 , wherein the salt is located in the brine chamber.3. The system of claim 2 , wherein the salt is in the form of a slab or a plurality of pellets.4. The system of claim 1 , further comprising an ion exchange resin claim 1 , wherein the ion exchange resin is located in the water softening chamber.5. The system of ...

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Номер записи: 66
12-03-2015 дата публикации

WATER SOFTENING APPARATUS, DISHWASHER HAVING THE SAME AND CONTROL METHOD THEREOF

Номер: US20150068565A1
Автор: JOO Seung Ah, KIM Jeong Myeong, Lee Sang Hoon
Принадлежит: Samsung Electronics, Co., Ltd.

A water softening apparatus having an improved structure to provide a function of an air brake, a dishwasher including the same and a control method thereof, the water softening apparatus having an air brake assembly and a regeneration tank and configured to soften wash water being supplied from a tub, wherein the air brake assembly including a water supply valve allowing wash water to be introduced therethrough, an ion exchange tank to accommodate an ion exchange resin therein, and a plurality of valves installed on a first path allowing wash water being introduced through the water supply valve to flow toward the ion exchange tank, wherein the regeneration tank is connected to the air brake assembly and accommodates regeneration material configured to purify the ion exchange resin. 1. A water softening apparatus having an air brake assembly and a regeneration tank and configured to soften wash water being supplied from a tub , wherein the air brake assembly comprises:a water supply valve allowing wash water to be introduced therethrough;an ion exchange tank accommodating an ion exchange resin therein; anda plurality of valves installed on a first path allowing wash water being introduced through the water supply valve to flow toward the ion exchange tank,wherein the regeneration tank is connected to the air brake assembly and accommodates regeneration material configured to purify the ion exchange resin.2. The water softening apparatus of claim 1 , wherein:a plurality of through holes are formed on the first path; andthe plurality of through holes are on/off controlled by the plurality of valves.3. The water softening apparatus of claim 2 , wherein the plurality of valves are formed on the first path in a number and a position corresponding to a number and a position of the plurality of through holes.4. The water softening apparatus of claim 1 , wherein the air brake assembly further comprising a supply water storage tank provided at an upper side of the ion ...

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Номер записи: 67
27-02-2020 дата публикации

AN AIR TREATMENT SYSTEM

Номер: US20200062622A1
Автор: Linley Charles, Sunshine Lawrence T.
Принадлежит: PLASMA AIR INTERNATIONAL, INC

Systems for treating air in a wet well are provided. For example, a system comprises a housing with inlet and outlet openings, where the inlet opening is on the bottom wall. The inlet opening is covered by a screen or has a filter installed within or adjacent to the opening. The system further comprising an ionization device configured to generate bi-polar ions within a compartment of the housing and a fan disposed within the compartment. The fan has an air outlet mounted to the wall of a body of the housing orthogonal to the bottom wall, where the air outlet of the fan is aligned with the outlet opening in the wall. Power is supplied from an external power source. The power is selectively connected to at least the ionization device based on a criterion. 1. An air treatment system for a wet well comprising:a water-resistant housing comprising a door and a body, the body having walls forming a compartment, the door being movable relative to the body to cover the compartment when closed and expose the compartment when open,the body having an inlet opening in a bottom wall, the inlet opening being an air inlet, where the inlet opening is at least partially covered by a screen or a filter, the body further having an outlet opening in a wall of the body orthogonal to the bottom wall, the outlet opening being an air outlet,the system further comprising:an ionization device configured to generate bi-polar ions, the ionization device being disposed within the compartment in air communication with the inlet opening; anda centrifugal fan being disposed within the compartment, the centrifugal fan having an air outlet, the air outlet of the centrifugal fan being mounted to the wall of the body orthogonal to the bottom wall, where the air outlet of the centrifugal fan is aligned with the outlet opening in the wall,wherein power is supplied from an external power source, andwherein the power is selectively connected to at least the ionization device based on at least one ...

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Номер записи: 68
27-02-2020 дата публикации

WATER TREATMENT METHOD

Номер: US20200062627A1
Автор: Cheng Liang, CORD-RUWISCH RALF, FLAVIGNY RAPHAEL MARIE-GUILLAUME, HOSSAIN MD IQBAL
Принадлежит:

A method for the treatment of water, the method comprising the steps of anaerobic uptake and storage of at least a portion of the organic components in the water by a heterotrophic denitrifying biomass absorption of ammonium ions with an ammonium ion absorbent; and aerobic oxidation of the absorbed ammonium by a nitrifying biomass comprising ammonium oxidizing microorganisms, wherein the step of aerobic oxidation of the absorbed ammonium is preceded by the step of exposing at least a portion of the nitrifying biomass to atmospheric oxygen. 1. A method for the treatment of water , the method comprising the steps of:anaerobic uptake and storage of at least a portion of the organic components in the water by a heterotrophic denitrifying biomass;absorption of ammonium ions with an ammonium ion absorbent; andaerobic oxidation of the absorbed ammonium by a nitrifying biomass comprising ammonium oxidizing microorganisms,wherein the step of aerobic oxidation of the absorbed ammonium is preceded by the step of exposing at least a portion of the nitrifying biomass to atmospheric oxygen.2. The method for the treatment of water in accordance with claim 1 , wherein the oxidation of the ammonium provides nitrite and/or nitrate ions which serve as the electron acceptors for denitrification with the absorbed or stored organics acting as electron donors.3. The method for the treatment of water in accordance with claim 2 , wherein the nitrate and/or nitrite formed is reduced by the heterotrophic denitrifying biomass resulting in net N removal via N2 production.4. The method for the treatment of water in accordance with claim 1 , wherein heterotrophic denitrifying biomass and the nitrifying biomass are mixed to provide a mixed biomass.5. The method for the treatment of water in accordance with claim 1 , wherein the heterotrophic denitrifying biomass is provided on a carrier.6. The method for the treatment of water in accordance with claim 1 , wherein the nitrifying biomass is provided ...

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Номер записи: 69
29-05-2014 дата публикации

Water Purification Matrix

Номер: US20140144841A1
Автор: Boileau Michael, McEachern Ann
Принадлежит: MCB INGENUITY LIMITED

A method for removing one or more organic or inorganic solutes from a solution, comprising contacting the solution with one or more layers of filtration media, whereby the solute(s) are adsorbed onto one or more filtration layer(s) is described. Primarily, but not exclusively, the filtration media are polymers formed by polymerizing one or more hydrophilic electrically active monomers, with the subsequent addition of varying mole percent's of one or more counter anions. The solution can comprise a polar solvent such as a polar organic solvent or water or an aqueous solution. The solution may also be a non-polar solvent, or water and organic mixture. The hydrophillic monomer can be, for example, a heterocyclic group, such as pyrrole or thiophene. The counter anion can be any anion, such as polystyrene sulfonate. The varying hydrophobicity or hydrophilicity of the polymer filtration media is controlled by the type(s) and mole percent of counter anion(s) used. 1. A method of filtering a fluid to remove at least one solute of interest comprising: providing a filtration medium comprising of at least one layer of an electrically active polymer composed of cyclic or heterocyclic monomers; flowing a fluid suspected of comprising at least one solute of interest over or through the filtration medium such that the solute of interest is retained within the filtration medium; and recovering the filtered fluid.2. The method according to wherein the electrically active polymer has associated therewith at least one counter anion.3. The method according to wherein the monomer is a hydrophobic monomer.4. The method according to wherein the monomer is a hydrophilic monomer.5. The method according to wherein the electrically active polymer comprises at least one hydrophilic monomer and at least one hydrophobic monomer.6. The method according to wherein the monomer undergoes an energy change upon an oxidation or reduction reaction with the solute.7. The method according to wherein the ...

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Номер записи: 70
12-03-2015 дата публикации

CROSS-LINKED POLYAMINOMETHYLDIPHOSPHONATE FOR THE REMOVAL OF METAL IONS FROM WASTEWATER

Номер: US20150073097A1
Автор: AL HAMOUZ Othman Charles Sadeq Othman, ALI SHAIKH ASROF
Принадлежит: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

The cross-linked polyaminodiphosphonate for the removal of metal ions from wastewater is a cross-linked anionic polyelectrolyte synthesized via cyclocopolymerization of diallylaminomethyldiphosphonic acid and 1,1,4,4-tetraallylpiperazinium dichloride (10 mol %), a cross-linker, in the presence of tert-butylhydroperoxide in aqueous solution at 85° C., followed by treatment with NaOH. The cross-linked polyaminodiphosphonate may be used to remove copper and cadmium ions from wastewater. The adsorption process is spontaneous and endothermic in nature, with negative and positive values for ΔG and ΔH, respectively. The efficiency of Cu and Cd removal by the cross-linked polyaminodiphosphonate was found to be 96.8% and 93.8%, respectively. 1. Field of the InventionThe present invention relates to polyelectrolytes, and particularly to a cross-linked polyaminomethyldiphosphonate for the removal of metal ions from wastewater.2. Description of the Related ArtCross-linked polymeric materials containing chelating functional groups of amine, carboxylate, phosphonate, and other motifs have attracted considerable attention in the separation and removal of toxic metals. Functional groups having aminomethylphosphonate motifs have shown extraordinary chelating properties in the removal of toxic metals from aqueous solutions. Pollution caused by toxic metal ions has been found to have a large negative impact on the environment. Such heavy metal ions as Cu and Cd metal ions cause various diseases and disorders. For example, copper poisoning can cause liver and kidney damage, as well as irritation of the respiratory system, whereas cadmium can cause nervous system damage, bone damage and other serious illness.Thus, a cross-linked polyaminodiphosphonate for the removal of metal ions from wastewater solving the aforementioned problems is desired.The cross-linked polyaminomethyldiphosphonate for the removal of metal ions from wastewater is a cross-linked anionic polyelectrolyte (referred to ...

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Номер записи: 71
29-05-2014 дата публикации

METHOD FOR REMOVAL OF METAL IONS FROM AN AQUEOUS SOLUTION

Номер: US20140148521A1
Автор: Ahamad Tansir, ALSHEHRI SAAD M.
Принадлежит: KING SAUD UNIVERSITY

The present invention relates to a method for removal of metal ions from an aqueous solution, which comprises contacting the aqueous solution with a phosphazene-formaldehyde resin as well as an ion exchange resin comprising a phosphazene-formaldehyde resin. 1. Method for removal of metal ions from an aqueous solution , which comprises contacting the aqueous solution with a phosphazene-formaldehyde resin.2. Method according to claim 1 , wherein the metal ions are selected from the group consisting of heavy metal ions.3. Method according to claim 1 , wherein the pH of the aqueous solution is from 6-8 claim 1 , wherein the aqueous solution optionally contains a respective buffer.4. Method according to claim 1 , wherein the aqueous solution is ground water claim 1 , sea water claim 1 , or waste water.5. Method according to claim 1 , wherein the phosphazene-formaldehyde resin is separated from the aqueous solution after contacting therewith.6. Method according to claim 5 , wherein the metal ions are removed from the separated phosphazene-formaldehyde resin.7. Method according to claim 6 , wherein the phosphazene-formaldehyde resin removed from the metal ions is recycled and/or re-used.8. Ion exchange resin comprising a phosphazene-formaldehyde resin.9. Ion-exchange resin according to claim 8 , wherein the phosphazene-formaldehyde resin is obtainable by reacting hexaminocyclotriphosphazene hexammoniumchloride ({NP(NH)}.6NHCl) and formaldehyde (HCHO) in an aqueous environment.10. Ion-exchange resin according to claim 9 , wherein the molar ratio of hexaminocyclotriphosphazene hexammoniumchloride and formaldehyde is from 1:1 to 1:3.11. Method according to claim 1 , wherein the metal ions are selected from the group consisting of lead and transition metals.12. Method according to claim 1 , wherein the metal ions are selected from the group consisting of cadmium claim 1 , copper claim 1 , zinc and nickel. The present invention relates to a method for removal of metal ions from ...

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Номер записи: 72
19-03-2015 дата публикации

HIGH-CAPACITY ANION EXCHANGE MATERIALS

Номер: US20150076072A1
Автор: Chang Han-Ting, Diallo Mamadou Samba, Sanchez Daniel, Yu Changjun
Принадлежит:

The present disclosure is directed to polymeric beads, methods of making the beads, and methods of using the beads as high-capacity anion exchange materials. In particular, the disclosure provides polymeric beads comprising a cross-linked polyamine and having a crush strength of about 250 g/bead or more. Preferably, the beads are substantially spherical. Also disclosed are polymeric beads comprising a cross-linked polyamine that has a substantial number of both strong base sites and weak base sites. Methods of using the polymeric beads in various industrial applications, such as groundwater remediation, radio waste management, municipal wastewater management, demineralization, toxin removal, mining, food refinery, research, agriculture, and the like, are also disclosed herein. 1. A substantially spherical polymeric bead comprising a cross-linked polyamine , wherein:i) the bead has a crush strength of about 250 g/bead or more;ii) the cross-linked polyamine is a reaction product of a polyamine and an amine-reacting crosslinking agent; andiii) the bead is a reaction product of the cross-linked polyamine and an amine-reacting moiety.2. The bead of claim 1 , wherein the bead comprises about 90% or more whole bead.3. The bead of claim 1 , wherein the diameter of the bead is about 250 μm or more.4. The bead of claim 3 , wherein the diameter of the bead is from about 300 μm to about 1500 μm.5. The bead of claim 1 , wherein the bead has a strong base capacity of at least about 1.5 eq/L.6. The bead of claim 5 , wherein the bead has a strong base capacity of from about 1.5 eq/L to about 2.2 eq/L.7. The bead of claim 1 , wherein the bead has a total capacity of from about 2.0 eq/L to about 4.2 eq/L.8. The bead of claim 1 , wherein from about 5% to about 85% of the total binding capacity of the bead is from strong base sites.9. The bead of claim 8 , wherein from about 15% to about 75% of the total binding capacity of the bead is from strong base sites claim 8 , and from about 25 ...

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Номер записи: 73
07-03-2019 дата публикации

WATER SOFTENER

Номер: US20190071326A1
Автор: HE Zhifeng, LIU Guohua
Принадлежит:

Disclosed is a water softener that includes a water softener valve and an ion exchange tank. The water softener valve includes a valve body and valve core assembly. The valve body includes a valve chamber, and a water inlet passage and a water outlet passage in communication with the valve chamber. The valve chamber, the water inlet passage, and the water outlet passage all extend in a first orientation, and the water inlet passage and the water outlet passage are both located at a periphery of the valve chamber and are disposed on opposite sides of the valve chamber in a second orientation. The water inlet passage and the water outlet passage respectively define a water inlet and a water outlet at a same end of the valve body along the first orientation. The second orientation and the first orientation are perpendicular to each other. 1. A water softener , comprising a water softener valve and an ion exchange tank , the water softener valve comprising a valve body and a valve core assembly , the valve body comprising a valve chamber , and a water inlet passage and a water outlet passage that are in communication with the valve chamber; wherein the valve chamber , the water inlet passage , and the water outlet passage all extend in a first orientation , and the water inlet passage and the water outlet passage are both located at a periphery of the valve chamber and are disposed on opposite two sides of the valve chamber in a second orientation; the water inlet passage and the water outlet passage respectively define a water inlet and a water outlet at a same end of the valve body in the first orientation , the second orientation and the first orientation are perpendicular to each other.2. The water softener according to claim 1 , wherein the valve body further comprises a softening inlet passage and a softening outlet passage both communicating with the valve chamber claim 1 , the water inlet passage communicates with the softening inlet passage claim 1 , and the ...

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Номер записи: 74
07-03-2019 дата публикации

Devices and methods for the remediation of groundwater

Номер: US20190071330A1
Автор: David A. Reynolds, David G. Thomas, Eric Daniels, Roopa Kamath
Принадлежит: Chevron USA Inc

Provided herein are devices, systems, and methods for removing contaminant ions from water within an aquifer. The devices, systems, methods employ an elecrokinetic driving force to induce the migration of charged species towards electrodes, where they can be concentrated and removed from the aquifer. In this way, the devices, systems, methods described herein can be used to economically remediate groundwater contaminated with charged species.

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Номер записи: 75
16-03-2017 дата публикации

Water softener water hardness automatic detection device

Номер: US20170073246A1
Автор: Feng Shun ZHAN, Yu Wei LIAN
Принадлежит: Xiamen Runner Industrial Corp

A water softener water hardness automatic detection device includes: a water input tube; a water output tube; a valve head, disposed in a water softener; a bypass valve, disposed in a water softener, and connected to the valve head through the water input tube and the water input tube; and a water hardness detection device, disposed on the water input tube, used to detect hardness of water. The water hardness detection device is a TDS (total dissolved solids) detection probe, extending into a tube chamber of the water input tube, and connected electrically to a display panel of the water softener through a controller. The valve head and the bypass valve are both connected electrically to the controller. The water softener water hardness automatic detection device is simple in construction, user may adjust parameters of water softener, to achieve the most of its functions.

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Номер записи: 76
05-03-2020 дата публикации

Ultrapure water generation and verification system

Номер: US20200071190A1
Автор: Daniel R. Wiederin, Mason Spilinek, Tyler Yost
Принадлежит: Elemental Scientific Inc

An ultrapure water (UPW) generation and verification system can include a cleaning chemical station, a cleanup column, a conductivity verification station, and a holding reservoir, in fluid communication with one another. The cleaning chemical station can be configured to selectably permit a flow of water to pass therethrough to the cleanup column or to block the flow of water and instead deliver a cleaning chemical to the cleanup column. The conductivity verification station can be configured to selectably perform at least one of the following: permit water to flow from the cleanup column to the holding reservoir; direct fluid to waste; or test the conductivity of the water for a purity level.

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Номер записи: 77
15-03-2018 дата публикации

METHOD AND APPARATUS FOR PREDICTING DEPLETION OF DEIONIZATION TANKS AND OPTIMIZING DELIVERY SCHEDULES

Номер: US20180075399A1
Автор: Agarwal Ashish, Ambrose David A., Antenore Michael K., Hecimovich Kenneth R., Perdue Raymond H., Yao Chen
Принадлежит:

Systems for analyzing and monitoring deionization tank system performance in a fluid flow system and generating delivery schedules for servicing deionization tanks can include a conductivity sensor and a fluid flow meter. Data regarding the amount and conductivity of fluid flowing through the deionization tank system can be used to predict a remaining capacity of the deionization tank system. A central server can determine the remaining capacity of deionization tank systems at a plurality of service locations. The central server can generate a delivery schedule for servicing deionization tank systems at each of the plurality of service locations based on the determined remaining capacities. Other parameters can be used to optimize efficiency of the delivery schedule while meeting the needs of each of the service locations. 1. A system for generating delivery schedules for servicing deionization tanks located at a plurality of service locations , the system comprising: a deionization tank system having a fluid inlet and a fluid outlet;', 'a fluid flow meter positioned in the fluid flow path either upstream or downstream of the deionization tank system;', 'a conductivity sensor positioned in the fluid flow path upstream from the deionization tank system, the conductivity sensor being in fluid communication with the fluid inlet of the deionization tank system; and, 'at each of the plurality of service locations, a fluid flow system comprising receive, from each service location, the data corresponding to the amount and conductivity of the fluid flowing through the deionization tank system over time;', 'determine, for each of the fluid flow systems, a predicted remaining capacity for the deionization tank system; and', 'generate a delivery schedule for servicing deionization tank systems for each of the plurality of service locations based on the predicted remaining capacity for each of the deionization tanks at the plurality of service locations., 'a central server in ...

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Номер записи: 78
18-03-2021 дата публикации

SYSTEM AND METHOD OF REDUCING OXIDANTS IN A CHEMICAL STREAM

Номер: US20210078881A1
Автор: Lloyd Ralph Birchard
Принадлежит:

The presently disclosed subject matter is generally directed to a system and method of reducing, reacting, and/or removing an oxidant or unwanted chemical species from a chemical stream. Particularly, the system and method include the use of one or more reductants that react with the undesired chemical species. The reductant and the chemical stream are added to a reactor and allowed to react for a desired amount of time. The reductant will reduce, react with, and/or remove the chemical species from the stream. The excess reductant and reaction products are then removed from the reactor, as described in more detail herein below. 1. A method of reducing , reacting , or removing an oxidant in or from a chemical stream , the method comprising:combining within a reusable reactor one or more molten alkali metal reductants not dispersed in a carrier liquid, and a chemical stream comprising an oxidant and optionally a non-reducible chemical species;heating or maintaining the reactor at a temperature sufficient to melt or maintain the one or more molten alkali metal reductants in a molten state;reacting the one or more molten alkali metal reductants with the oxidant in the chemical stream, wherein the oxidant in the chemical stream is reduced by the one or more molten alkali metal reductants, is reacted with the one or more molten alkali metal reductants, or is removed from a non-reducible chemical species by the one or more molten alkali metal reductants; andremoving the reaction products and optionally a non-reducible chemical species from the reusable reactor.2. The method of claim 1 , wherein the oxidant is selected from a halocarbon claim 1 , a sulfur compound claim 1 , a nitrogen compound claim 1 , an oxygen compound claim 1 , water claim 1 , carbon monoxide claim 1 , carbon dioxide claim 1 , an amine claim 1 , a nitrogen oxide claim 1 , oxygen claim 1 , a cation claim 1 , a persistent organic pollutant (POP) claim 1 , or combinations thereof.3. The method of claim 1 , ...

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Номер записи: 79
14-03-2019 дата публикации

HOME LAUNDRY WASHING MACHINE AND METHOD FOR CONTROLLING THEREOF

Номер: US20190075999A1
Автор: Mazzon Andrea
Принадлежит: Electrolux Appliances Aktiebolag

A method to control a laundry washing machine having—an outer casing, a washing tub; a rotatable drum; a water softening device provided with ion exchanger agents designed to reduce the hardness degree of fresh water to be used during said washing program; a brine tank which is designed to supply, during a regeneration cycle, a prefixed amount of the brine to the water softening device for regenerating the ion exchanger agents; perform a waste-brine cleaning cycle for washing-out the waste brine solution contained in the water softening device and/or in the brine tank. The method controls the washing machine according to a washing program comprising one or more a washing phases, one or more rinse phases and one or more spin phases; and performs the regeneration cycle and the waste-brine cleaning cycle during respective washing program phases, which are different one to the other. 1. A method to control a laundry washing machine comprising an outer casing , a washing tub placed inside said outer casing a rotatable drum housed in axially rotatable manner inside the washing tub and structured for housing the laundry to be washed , a water softening device provided with ion exchanger agents designed to reduce the hardness degree of fresh water to be supplied to the washing tub , and a brine tank configured to contain brine for regenerating ion exchanger agents contained in the water softening device , the method comprising: a washing phase,', 'a e rinse phase, and', 'a spin phase,, 'performing a plurality of washing program phases including at leastperforming a regeneration cycle, in which a prefixed amount of the brine is supplied to the water softening device, during a first washing program phase; andperforming a waste-brine cleaning cycle for washing-out the waste brine solution contained in-salt h water softening device and/or in the brine tank during a second washing program phase, the second washing phase being different from the first washing phase.2. The method ...

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Номер записи: 80
22-03-2018 дата публикации

METHODS AND SYSTEMS FOR LIQUID PARTICLE PREQUALIFICATION

Номер: US20180078975A1
Автор: Arcot Mahesh, Bagul Nilesh Chimanrao, Bhoyar Sankesha, PATIL RAVINDRA, RAJU Hemantha
Принадлежит:

Systems for prequalifying components for a processing chamber are described. The systems may be used to clean particulates from chamber parts and concurrently quantify the cleanliness. The systems may be used to qualify replacement parts before sending to a customer site for installation. The systems have three adjacent compartments separated by impermeable barriers. All three compartments are filled with liquid while cleaning a chamber component. The center compartment contains a submerged component for cleaning and qualifying. Two compartments on either side of the center compartment are configured with submerged ultrasonic transducers to deliver ultrasonic energy to either side of the component being cleaned and prequalified. A liquid pump is connected to the cleaning tub to recirculate water from the cleaning bath and another liquid pump is configured to remove a small amount of the cleaning bath to sample particulates. 1. An ultrasonic cleaning and sampling system , comprising:a cleaning tub;a first ultrasonic tub and a second ultrasonic tub, wherein the first ultrasonic tub is disposed on the opposite side of the cleaning tub from the second ultrasonic tub;a first impermeable barrier disposed between the first ultrasonic tub and the cleaning tub, wherein the first impermeable barrier is configured to pass ultrasonic energy from the first ultrasonic tub into the cleaning tub when each of the first ultrasonic tub and the cleaning tub are filled with water;a second impermeable barrier disposed between the second ultrasonic tub and the cleaning tub, wherein the second impermeable barrier is configured to pass ultrasonic energy from the second ultrasonic tub into the cleaning tub when each of the second ultrasonic tub and the cleaning tub are filled with water;a first ultrasonic transducer and a second ultrasonic transducer, wherein the first ultrasonic transducer is in the first ultrasonic bath and the second ultrasonic transducer is in the second ultrasonic bath; ...

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Номер записи: 81
23-03-2017 дата публикации

CONTINUOUS AND MODULAR TREATMENT SYSTEM FOR REMOVING BORON, CONSISTING OF A BORON REMOVAL SYSTEM TOGETHER WITH A RESIN REGENERATION SYSTEM INCLUDING THREE COLUMNS

Номер: US20170081215A1
Автор: BROSCHEK SANTELICES Ulrike, VIDAL CRUZ Cecilia, VOLKER KROEGER Karien
Принадлежит: FUNDACION CHILE

The invention relates to a continuous and modular treatment system for removing boron from natural, urban, rural and irrigation water, made up of a boron removal system together with a resin regeneration system, wherein the treatment system comprises three columns (C-, C-, C-), each column being packed with an ion exchange resin specific for removing boron. Said columns are arranged in series and operate alternatingly in a fining-refining configuration, meaning that two of the three columns are in simultaneous operation in the boron removal system, while the third column is in regeneration. The invention further relates to a method for operating the system, comprising the steps of removing boron and the steps of regenerating the saturated resin. 1123. A continuous system and modular treatment for removal of boron from natural waters , urban , rural and irrigation , characterized in that it comprises a boron removal tie system with a regeneration system resin , wherein the treatment system comprises three columns (C- , C- , C-) , each packed with a resin specific ion exchange to remove boron , which are arranged in series and operate alternately in a thin-refining configuration , which means two of the columns are in operation in the boron removal system , simultaneously while the third column is in regeneration , the resin regeneration system; where the treatment system further comprises a drive system for transporting the fluids within the treatment system; ponds , which store the water ja treated , concentrated solutions , solutions regeneration , treated water and eluates; Level sensors 16 for detecting the level of ponds , either filling or emptying; between 42 and 60 flow shutoff valves; 4 flowmeters located at the outlet of the regeneration solutions ponds , water to be treated and treated water , respectively , which are used to measure and control the exit and feed of the treatment system; PLC system (programmable logic controller) whose function is ...

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Номер записи: 82
12-03-2020 дата публикации

DEVICE FOR USE IN A WATER LINE

Номер: US20200078135A1
Автор: BJERREGAARD Stine Skotte, FOGH Poul, WICK Michael Reidtz
Принадлежит: ADEPT WATER TECHNOLOGIES A/S

A disinfection device suitable for disinfection of water in a water line, wherein the device is adapted to receive water from the water line and for the disinfected water to exit the device. The disclosure also relates to a DUWL including the disinfection device, as well as a dental chair comprising the DUWL. Moreover, embodiments of the disclosure concern a method for disinfection of water in a water line. 125-. (canceled)26. A disinfection device suitable for disinfection of water in a water line , wherein the device is adapted to receive water from the water line and for the disinfected water to exit the device , comprising:a) an electrochemical chamber for electrolysis of water entering the chamber from the water line,b) an electrode connector configured for applying current to the electrodes, when current is applied to the electrode connectors,c) an optional water softener adapted to receive the water from the water line before entering the electrochemical chamber,d) an optional bypass, optionally integrated in the water softener, adapted to receive the water from the water line before entering the water softener,e) a polarity reversing unit configured for reversing the polarity of the electrode connectors when current is applied to the electrode connectors,f) a sterile filter unit adapted to receive the water from the electrochemical chamber, and for the filtered water to exit the sterile filter unit as disinfected water,g) a connecting mechanism for transporting the water in the water line to the bypass and water softener, for transporting the water in the water line from the bypass and water softener to the electrochemical chamber, for transporting the water in the water line from the electrochemical chamber to the sterile filter unit, andh) a control unit adapted to communicate with at least one of the electrochemical chamber, and the polarity reversing unit.27. The disinfection device of claim 26 , wherein the filtered and disinfected water enters the ...

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Номер записи: 83
02-04-2015 дата публикации

SOFTENING APPARATUS AND WASHING MACHINE INCLUDING THE SAME

Номер: US20150090648A1
Автор: Hamanaka Katsuhiko, JEONG In Jo, LIM Chang Bae, Park Hee Jin
Принадлежит:

Disclosed herein are an electrochemical softening apparatus that is relatively convenient and inexpensive and a washing machine including the same. The softening apparatus regenerates a zeolite compound that has been used to perform ion exchange using hydrogen ions (H) generated using an electrochemical method such that the zeolite compound is repeatedly used. Hydrogen ions (H) generated during a re-softening process are used to remove contaminants due to microorganisms and a scale component. The softening apparatus includes a regeneration unit to generate regeneration water containing hydrogen ions (H) and a softening unit, including an Ion exchange material regenerated by the regeneration water, to convert raw water containing a hardness component into soft water containing hydrogen ions (H). 1. A softening apparatus comprising:{'sup': '+', 'a regeneration unit to generate regeneration water containing hydrogen ions (H), and'}{'sup': '+', 'a softening unit, comprising an Ion exchange material regenerated by the regeneration water, to convert raw water containing a hardness component into soft water containing hydrogen ions (H).'}2. The softening apparatus according to claim 1 , wherein the regeneration unit electrolyzes water to generate the hydrogen ions (H).3. The softening apparatus according to claim 1 , whereinthe regeneration unit comprises a housing forming an external appearance and an electrode provided in the housing, andthe Ion exchange material is coupled to one side of the electrode via a binder such that the regeneration unit and the softening unit are integrally formed.4. The softening apparatus according to claim 1 , whereinthe regeneration unit comprises a cyclone type housing, a cylindrical anode provided in the housing, and a cathode disposed on a central axis of the anode, andthe Ion exchange material is disposed between the anode and the cathode.5. The softening apparatus according to claim 1 , wherein the hardness component of the raw water ...

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Номер записи: 84
02-04-2015 дата публикации

SYSTEMS AND METHODS RELATED TO PROPORTIONAL REGENERATION OF WATER TREATMENT SYSTEMS

Номер: US20150090663A1
Автор: GRUETT GREGORY C., GRUETT GUY, GRUETT KURT
Принадлежит: Water-Right, Inc.

A method for fluid treatment that provides variable or alternative regeneration cycles within the same fluid treatment device. The duration of all stages of the regeneration cycle can be adjusted depending upon the amount of fluid treated so that regenerant resources such as water are not underutilized and waste is not discharged unnecessarily into the environment. Additionally or alternatively, a regeneration sequence may include a fluid release sequence in which a fluid is released from a water treatment tank by successive linear movement of a piston in a valve assembly. 1. A method for treating water , said method comprising:providing a water treatment device having a programmable controller coupled to a valve assembly which controls fluid flow between a plurality of ports, the controller configured to manage a first regeneration sequence followed by a second regeneration sequence, each of the first and second regeneration sequences comprising one or more correlative regeneration cycles wherein the controller has been programmed with:a predetermined capacity of the treatment device,a first predetermined duration for each regeneration cycle of the first regeneration sequence, anda trigger limit of at least one characteristic of the water treatment device to trigger a regeneration sequence;prior to initiation of the second regeneration sequence, measuring a volume of water passed through the water treatment device since the completion of a prior regeneration sequence;initiating with the controller the first regeneration sequence;after the first regeneration sequence, programming the controller with a second predetermined duration for at least one correlative regeneration cycle of the second regeneration sequence, the second predetermined duration being substantially equivalent to the first predetermined duration of the correlative regeneration cycle of the first regeneration sequence multiplied by the measured volume of water divided by the predetermined capacity ...

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Номер записи: 85
19-06-2014 дата публикации

APPARATUS AND METHOD FOR PRODUCING POTABLE WATER

Номер: US20140166577A1
Автор: Hirose Satoru, Kanzaki Yasushi
Принадлежит: GREEN ARM CO., LTD.

An apparatus according to the present invention includes a pump for pressurizing tap water, a reverse osmosis membrane for separating the pressurized tap water into waste water containing contaminant and filtered water and a tank for storing filtered water. Waste water is disposed through a first flow channel and a second flow channel mounted in parallel. The apparatus according to the present invention further includes a flow rate control unit having a flow rate control valve provided in the first flow channel to control flow rate of waste water flowing through the flow channel, a flow channel open/close valve provided in the second flow channel for opening/closing thereof, and a control device for controlling opening/closing the flow channel open/close valve. 1. An apparatus for producing potable water which contaminant in tap water to be processed is removed with a reverse osmosis membrane , sustainable anti-bacterial property is provided and minerals are added thereto , the apparatus comprising:a pump for pressurizing tap water;a reverse osmosis membrane for separating the pressurized tap water into waste water containing contaminant and filtered water;a first flow channel and a second flow channel mounted in parallel and the waste water flows through;a flow rate control unit having a flow rate control valve provided in the first channel for controlling flow rate of waste water flowing through the first flow channel, a flow channel open/close valve provided in the second channel for opening/closing the second flow channel, and a control device for controlling opening/closing of the flow channel open/close valve; anda tank for storing the filtered water,wherein, when producing potable water, the flow channel open/close valve is closed and the flow rate at the flow rate control valve is controlled to maintain the flow rate of the filtered water, and when cleaning the reverse osmosis membrane, the control device operates to open the flow channel open/close valve ...

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Номер записи: 86
19-06-2014 дата публикации

WATER TREATMENT SYSTEM AND METHOD

Номер: US20140166582A1
Автор: Strain Peter
Принадлежит:

Embodiments of a water treatment system, a water treatment method, and an ozone kit for a water treatment system are provided. The water treatment system includes an ozone gas source; a regenerating fluid source; a water tank; a manifold having a first port in fluid communication with the regenerating fluid source, a second port in fluid communication with an outlet of the ozone gas source, and a third port in fluid communication with the water tank via a venturi nozzle; and a control system configured to: cause regenerating fluid to be drawn through the venturi nozzle into the water tank; and cause ozone gas to be drawn through the venturi nozzle into the water tank. 1. A water treatment system comprising:an ozone gas source;a regenerating fluid source;a water tank;a manifold having a first port in fluid communication with the regenerating fluid source, a second port in fluid communication with an outlet of the ozone gas source, and a third port in fluid communication with the water tank via a venturi nozzle; and cause regenerating fluid to be drawn through the venturi nozzle into the water tank; and', 'cause ozone gas to be drawn through the venturi nozzle into the water tank., 'a control system configured to2. The water treatment system of claim 1 , wherein the regenerating fluid is brine.3. The system of claim 1 , wherein the ozone gas drawn into the water tank forms a layer of ozone gas at the top of the water tank.4. The system of claim 1 , wherein the control system is further configured to cause regenerating fluid from the first port and ozone gas from the second port to be drawn through the venturi nozzle separately.5. The system of claim 1 , wherein the control system is further configured to direct the ozone gas source to begin and end releasing ozone gas for conveying out of the outlet towards the second port.6. The system of claim 5 , wherein the control system is further configured to direct the ozone gas source to begin and end producing ozone gas for ...

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Номер записи: 87
29-03-2018 дата публикации

MODIFICATION OF IRON-BASED MEDIA FOR WATER TREATMENT

Номер: US20180086650A1
Автор: Chen Hung Ting, Ergang Nicholas S., Keiser Bruce A., Mlambo Darlington, Schwarz Daniel E.
Принадлежит: ECOLAB USA INC.

Methods of modification of zero-valent iron (ZVI) to improve its performance in removing contaminants from a discharge stream. In some aspects, the methods include contacting ZVI-impregnated disks with solutions containing metal cations such as Ni, Cu, Fe, or Pd. In some aspects, a wastewater stream is treated with a metal cation solution, then passed over ZVI. Compositions for treating wastewater include ZVI that is modified with a metal cation solution. 1. A method for treating a wastewater stream , the method comprising:contacting zero-valent iron (ZVI) with a metal cation solution to form a modified ZVI; andcontacting a wastewater stream with the modified ZVI.2. The method of claim 1 , wherein the metal cation is selected from the group consisting of ferrous iron claim 1 , nickel claim 1 , copper claim 1 , and palladium.3. The method of claim 2 , wherein the metal cation is nickel.4. The method of claim 1 , wherein the concentration of metal cation is about 1 to about 500 ppm.5. The method of claim 4 , wherein the concentration of metal cation is about 10 to about 50 ppm.6. The method of claim 1 , wherein the modified ZVI is effective for removal of selenium claim 1 , arsenic claim 1 , and/or nitrates from the wastewater stream.7. The method of claim 1 , wherein the ZVI is bound to a solid support.8. The method of claim 7 , wherein the solid support comprises reticulated foam.9. The method of claim 7 , wherein the solid support is constructed from a material selected from ceramics claim 7 , metals claim 7 , polyethers claim 7 , polyurethane claim 7 , polyester claim 7 , activated carbon claim 7 , activated alumina claim 7 , clays claim 7 , and silica-based materials.10. The method of claim 1 , wherein the ZVI is a particulate ZVI not bound to a solid support.11. The method of claim 1 , further comprising separating oxidized iron from the wastewater stream.12. The method of claim 1 , wherein the wastewater stream is aqueous.13. A method for treating ZVI claim 1 , ...

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Номер записи: 88
29-03-2018 дата публикации

In-situ, self-adjusting stability control of methane-producing anaerobic biological reactors through novel use of ion exchange fibers

Номер: US20180086654A1
Автор: Brown Derick G., SenGupta Arup K., TIAN YU
Принадлежит:

An anaerobic biological reactor comprising an anaerobic digester having a chamber configured to receive a microbial suspension, a chamber inlet configured to direct an organic waste stream into the digester, and ion-exchange fibers within the chamber in position to contact and chemically react with microbial suspension received into the chamber. A method for treating organic waste with a methane-producing anaerobic biological reactor comprise providing a methane-producing anaerobic biological reactor comprising an anaerobic digester containing a microbial suspension comprising acetogenic bacteria, methanogenic bacteria and a plurality of ion exchange fibers, introducing organic waste into the anaerobic digester, maintaining the microbial suspension in contact with the organic waste and at least a portion of the plurality of ion-exchange fibers for a period of time and under conditions sufficient to treat the organic waste and produce methane, and removing the treated organic waste and methane from the anaerobic digester. 1. An anaerobic biological reactor , comprising:an anaerobic digester having a chamber configured to receive a microbial suspension;an inlet in fluid communication with the chamber, the inlet being configured to direct an organic waste stream into the anaerobic digester; anda plurality of ion-exchange fibers disposed within the chamber in position to contact and chemically react with microbial suspension received into the chamber of the anaerobic digester.2. The anaerobic biological reactor of claim 1 , further comprising the microbial suspension disposed within the chamber.3. The anaerobic biological reactor of claim 2 , wherein the microbial suspension comprises acetogenic bacteria and methanogenic bacteria.4. The anaerobic biological reactor of claim 3 , wherein the methanogenic bacteria has an optimal pH range between about 6.8 and 7.2.5. The anaerobic biological reactor of claim 1 , wherein the anaerobic digester further comprises an outlet in ...

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Номер записи: 89
30-03-2017 дата публикации

UREA SULFATE AND SODIUM CHLORIDE BLEND FOR REGENERATION OF CATION EXCHANGE RESINS

Номер: US20170088442A1
Автор: Everson Terrence P., Tan Lylien, Toetschinger Mark, Voss Peter, Wen Li
Принадлежит:

Methods and systems for acid regeneration of ion exchange resins are disclosed. Acid resins designed for use in a variety of cleaning application using a water source use a treated, softened, acidic water source according to the invention. Various methods of using the softened acidic water generated by acid regenerate-able ion exchange resins are disclosed to beneficially reduce spotting, filming and scale buildup on treated surfaces, reduce and/or eliminate the need for polymers, threshold reagents and/or rinse aids, and using protons generated in the acidic water effluent for triggering events useful in various cleaning applications. 1. A system employing an ion exchange resin regenerated by an acid comprising:an inlet for providing a water source;a water treatment reservoir;a water treatment component housed within the water treatment reservoir, wherein said water treatment component comprises at least one ion exchange resin capable of generating a treated water source by exchanging protons on said resin for dissolved cations including water hardness ions and total dissolved solids in said water source, and wherein said ion exchange resin is an acid form or in an inert metal form;an outlet;a water delivery line in fluid communication with a cleaning application and/or storage reservoir to provide the treated water source to the cleaning application and/or storage reservoir; anda storage reservoir housing an acid salt regenerant and a regenerant delivery line fluidly connected to the water treatment reservoir to deliver the regenerant to the ion exchange resin;wherein the inlet is in fluid communication with the water treatment reservoir;wherein a first end of the outlet is in fluid communication with the water treatment reservoir and a second end is in fluid communication with the water delivery line;wherein the treated water source meets a defined water specification, and wherein the specification is a softened, acidic water having total dissolved solids (TDS) ...

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Номер записи: 90
05-05-2022 дата публикации

THIN-FILMS FOR CAPTURING HEAVY METAL

Номер: US20220135442A1
Автор: Bawendi Moungi, Bulovic Vladimir, Moody Nicole, Swartwout Richard
Принадлежит: Massachusetts Institute of Technology

A heavy metal capture composition, devices including the composition, and a method of reducing heavy metal contamination in the environment is described.

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Номер записи: 91
09-04-2015 дата публикации

WATER TREATMENT PROCESS

Номер: US20150096940A1
Автор: Arias-Paic Miguel Salvador, Mccurry Kelly Bryan
Принадлежит:

The present invention relates to water treatment, in particular to a process for the removal of contaminants in a raw water source where the contaminants consist of organic species and inorganic species. 1. A method for removing a contaminant consisting of organic species and inorganic species from water containing an unacceptably high concentration of said contaminant , said method comprising:a) dispersing a mixture of (i) a magnetic ion exchange resin or other magnetic adsorbing media (‘first medium’) capable of adsorbing said organic species and (ii) a magnetic or non-magnetic ion exchange resin or other adsorbing media (‘second medium’) capable of adsorbing said inorganic species, in the water for a time and under conditions sufficient to absorb a quantity of said contaminant from the water;b) separating said mixture of ion-exchange resins or adsorbing media loaded with said contaminant;c) optionally repeating steps a) and b) until such a time as the concentration of said contaminant is acceptable; andd) regenerating the separated mixture loaded ion-exchange resins or adsorbing media from step b).2. A method according to wherein the method is conducted in a single ion exchange (or contacting) vessel claim 1 , optionally operating in a batch or continuous manner.3. A method according to or wherein in said method the first medium settles at a different rate than said second medium claim 1 , whereby the first and second media are stratified such that the first media is selectively removable from the dispersion without substantially removing the second media and vice versa.4. A method according to any of to wherein the method further comprises:d′) selectively regenerating said first and second media at different rates dependent on the respective adsorptive capacities of said first and second media.5. A method for removing a contaminant consisting of organic species and inorganic species from water containing an unacceptably high concentration of said contaminant ...

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Номер записи: 92
19-03-2020 дата публикации

METHODS OF REMOVING AND RECOVERING PHOSPHORUS FROM AQUEOUS SOLUTIONS

Номер: US20200087169A1
Автор: Manto Michael, Wang Chao
Принадлежит:

Described are methods of removing phosphorous from aqueous solutions using copper-substituted aluminosilicate materials. The copper-substituted aluminosilicate materials are copper-substituted zeolites that are recyclable and have desirable recovery efficiencies. Also described are methods of making copper-substituted aluminosilicate materials, using copper-substituted aluminosilicate materials, systems using copper-substituted aluminosilicate materials, and methods of using these systems. 3. The method of claim 2 , further comprising isolating at least a portion of the inorganic phosphorus from the aqueous medium after any d) or e).4. The method of claim 3 , wherein the isolating for any individual isolating step is carried out by precipitation.5. The method of claim 1 , further comprising repeating a)-c) claim 1 , optionally claim 1 , d) claim 1 , and optionally e) with the aluminosilicate material from c) and/or the aluminosilicate material from e) a desired number of times.6. The method of claim 1 , wherein the sample is wastewater claim 1 , runoff claim 1 , or water.7. The method of claim 1 , wherein the sample is an aqueous sample.8. The method of claim 7 , wherein the sample has a pH of 8 to 9.9. The method of claim 1 , wherein the inorganic phosphorus is present in the sample at 0.0001 to 0.01 weight % based on the total weight of the sample.10. The method of claim 1 , wherein the contacting for any one b) and/or e) is carried out for 0.1 to 1.5 hours.11. The method of claim 1 , wherein the contacting for any one contacting step is carried out at room temperature or without any heating and claim 1 , optionally claim 1 , with mixing.12. The method of claim 1 , wherein the removing for any one removing step is carried out by filtration or centrifugation.13. The method of claim 1 , wherein the amount of aluminosilicate material provides a sample having 0.0001 to 10 weight % aluminosilicate material based on the total weight of sample and aluminosilicate ...

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Номер записи: 93
26-06-2014 дата публикации

WATER PURIFICATION METHOD

Номер: US20140175015A1
Автор: Nishimi Taisei
Принадлежит: FUJIFILM Corporation

A water purification method comprising adding a purification agent to water having a contaminant concentration of 1 μg/L to 10 g/L, the purification agent containing an adsorbent having an average particle size of 100 nm to 500 μm, an iron-based flocculant, and an alkaline substance; causing the adsorbent to adsorb at least a part of the contaminants in water; settling the adsorbent with the adsorbed contaminants by the iron-based flocculant; and removing the sediment from water, wherein the purification agent is added in an amount of 0.01 g to 20 g per liter of water, can purify contaminated water conveniently and efficiently. 1. A water purification method comprising:adding a purification agent to water having a contaminant concentration of 1 μg/L to 10 g/L, the purification agent containing an adsorbent having an average particle size of 100 nm to 500 μm, an iron-based flocculant, and an alkaline substance;causing the adsorbent to adsorb at least a part of the contaminants in water;settling the adsorbent with the adsorbed contaminants under the effect of a water-insoluble ferric hydroxide produced by reaction of the iron-based flocculant and the alkaline substance to form a sediment; andremoving the sediment from water,wherein the purification agent is added in an amount of 0.01 g to 20 g per liter of water.2. The water purification method according to claim 1 , wherein the proportion of the adsorbent in the total mass of the purification agent is 40 mass % to 95 mass %.3. The water purification method according to claim 1 , wherein a water-soluble polymer is added together with the purification agent or separately from the purification agent.4. The water purification method according to claim 1 , wherein the sediment is removed from water by filtration with a fabric or sand.5. The water purification method according to claim 1 , wherein the adsorbent contains at least one of activated carbon and zeolite claim 1 , and adsorbs at least an organic compound in water ...

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Номер записи: 94
16-04-2015 дата публикации

COMPOSITION AND METHOD FOR RETENTION OF SOLVATED COMPOUNDS AND IONS

Номер: US20150101978A1
Автор: Elliott Curtis
Принадлежит:

Storage stable polyhydroxylated aromatic ether adducts of polyalkylene oxide are described. Reactive compositions are formed by combining an ether adduct with an aldehyde, optionally further adding a phenolic-aldehyde prepolymer. The reactive compositions are cured by removing water, by acidification, or both. The cured compositions sorb solvated compounds from environments containing water. The cured compositions are also useful for pre-loading with compounds that are subsequently released at a controlled rate into environments containing water. 2. The reactive composition of further comprising a surfactant.3. The reactive composition of wherein the surfactant is bonded to the to the emulsified particles.4. The reactive composition of wherein the surfactant is ionic.5. The reactive composition of further comprising finely divided particulates.6. The reactive composition of wherein the particulates are microparticles or nanoparticles.7. The reactive composition of wherein the finely divided particulate comprises clay claim 5 , colloidal or agglomerated silica claim 5 , zeolites claim 5 , porous charcoal claim 5 , oxides or hydroxides of calcium or aluminum or silicon claim 5 , a transition metal compound comprising oxides claim 5 , hydroxides claim 5 , and organometallic derivatives of manganese claim 5 , iron claim 5 , titanium aluminum claim 5 , calcium claim 5 , vanadium claim 5 , chromium claim 5 , tantalum claim 5 , tungsten claim 5 , palladium claim 5 , platinum claim 5 , silver claim 5 , gold claim 5 , copper claim 5 , nickel claim 5 , zinc claim 5 , iron II oxide claim 5 , iron III oxide claim 5 , nickel oxide claim 5 , cobalt oxide claim 5 , magnetic rare earth mixtures claim 5 , or a combination or mixture of two or more thereof.8. The reactive composition of wherein the composition further comprises one or more surfactants claim 1 , polymers claim 1 , reactive compounds claim 1 , solvents claim 1 , or a combination thereof.10. The composite composition of ...

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Номер записи: 95
14-04-2016 дата публикации

WATER RECOVERY SYSTEM, ASSEMBLY AND METHOD FOR USE OF RETENTATE RECOVERED FROM MEMBRANE-BASED FILTRATION DEVICES

Номер: US20160101995A1
Автор: Barror Christopher R., Sala Joseph, Staubach Jarrod J.
Принадлежит: Staubach Barror Water Systems, Inc.

A water recovery system, in an embodiment, has at least one container fluidly connectable to a membrane-based filtration device. The water recovery system collects retentate or reject water from the membrane-based filtration device. In operation, the water recover system supplies the collected retentate or reject water to other apparatuses that have functions other than membrane-based water filtration. 1. A water recovery system comprising:at least one tank; (a) product water through a product water conduit of the reverse osmosis device; and', '(b) reject water through the reject water conduit;, 'at least one inflow port fluidly connected to the at least one tank, the at least one inflow port configured to be fluidly connected to a reject water conduit of a reverse osmosis device operable in accordance with a reverse osmosis filtration process, the reverse osmosis device configured to outputat least one pump;at least one outflow port fluidly connected to the at least one tank, the at least one outflow port configured to fluidly connect the at least one tank to an apparatus other than the reverse osmosis device; andat least one controller operable to control the pump to move the reject water from the at least one tank, through the at least one outflow port, to the apparatus,wherein the apparatus is operable with the reject water, andwherein the water recovery system facilitates usefulness of the reject water for one or more processes of the apparatus other than the reverse osmosis filtration process.2. The water recovery system of claim 1 , wherein the apparatus comprises a pretreatment apparatus fluidly connected to the reverse osmosis device.3. The water recovery system of claim 2 , wherein the pretreatment apparatus comprises at least one pretreatment tank selected from the group consisting of a solid screening tank comprising a solid screening media and a chemical treatment tank comprising an active carbon media.4. The water recovery system of claim 3 , wherein ...

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Номер записи: 96
23-04-2015 дата публикации

ENZYME-CONTAINING AUTOMATIC DISHWASHING BOOSTER/RINSE AID COMPOSITION, KIT CONTAINING THE SAME AND METHOD OF USING THE SAME

Номер: US20150107629A1
Автор: II David S., Nguyen Nicole, Stott
Принадлежит: CHURCH & DWIGHT CO., INC.

A booster/rinse aid composition for treatment of dishware prior to or after treatment with an automatic dishwashing composition, includes at least one surfactant, at least one anionic polymer, and at least one enzyme, wherein the composition is at least substantially free of alkaline builders, bleaches and bleach activators. A method of using the same and a kit is also described herein. 1. A booster/rinse aid composition for treatment of dishware prior to or after treatment with an automatic dishwashing composition , comprising:at least one surfactant;at least one anionic polymer; andat least one enzyme;wherein said composition is at least substantially free of alkaline builders, bleaches and bleach activators.2. The composition of wherein:said surfactant is present in amounts of at least 0.1 wt % based on the total weight of the composition;said one anionic polymer is present in amounts of from about 0.05 wt % to 10.00 wt % based on the total weight of the composition; andsaid enzyme is present in amounts of from about 0.01 wt % to 20.00 wt % based on the total weight of the composition.3. The composition of wherein:said surfactant is present in amounts of from about 0.1 wt % to 30.0 wt %;said one anionic polymer is present in amounts of from about 0.1 wt % to 5.0 wt %; andsaid enzyme is present in amounts of from about 0.1 wt % to 16.0 wt %.4. The composition of wherein the at least one enzyme is selected from the group consisting of protease claim 1 , amylase claim 1 , and combinations thereof.5. The composition of wherein the amount of protease is from about 0.1 wt % to 10.0 wt % based on the total weight of the composition.6. The composition of wherein the amount of amylase is from about 0.1 wt % to 6.0 wt % based on the total weight of the composition.7. The composition of wherein the surfactant is a nonionic surfactant.8. The composition of wherein the amount of the surfactant is from about 0.1 wt % to 30.0 wt % based on the total weight of the composition.9. ...

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Номер записи: 97
21-04-2016 дата публикации

FILTERING WATER BOTTLE

Номер: US20160107898A1
Автор: Mathur Aakash, MITTAL ALEXANDER CHOW, Parekh Jay Kiran, SRINIVAS ARJUN DANIEL, YOUNG MICHAEL EUGENE
Принадлежит:

A portable, personal apparatus for treating drinking water comprises a generally tubular or cylindrical filter housing containing filtration media and water-permeable screen or mesh or felt or membrane or netting layer at the top and bottom ends of the filter. The design of the apparatus involves the bottle exterior and interior contouring to the filter and enables the efficient and rapid gravity flow of water in through the filter. The apparatus may be configured such that water is first passed through a top reservoir designed to receive water, followed by a porous mesh, followed by granular filtration and antimicrobial media agitated by turbulent motion of influent water, followed by a porous mesh before reaching a durable and reusable water containment vessel. 127-. (canceled)28. A filter apparatus comprising:a filter housing having a filter chamber defined at least in part by an inlet mesh and a filter pad disposed opposite the inlet mesh, the inlet mesh having a porosity ranging from approximately 50 microns to approximately 2000 microns, the filter pad having a porosity ranging from approximately 50 microns to approximately 500 microns; andfiltration media disposed in the filter chamber, the filtration media comprising granular activated carbon having a mesh size of 4×8, 6×12, 8×16, 8×30, or 12×30,wherein the filter apparatus allows for a flow rate of water greater than approximately 0.1 Lpm through the filter chamber by the force of gravity when the water is supplied to the filter chamber.29. The filter apparatus of claim 28 , wherein the granular activated carbon has a mesh size of 8×16.30. The filter apparatus of claim 28 , wherein the inlet mesh has a greater porosity than the filter pad.31. The filter apparatus of claim 28 , wherein the filter apparatus allows for a flow rate of the water of about 0.5 Lpm to about 5 Lpm through the filter chamber by the force of gravity when the water is supplied to the filter chamber.32. The filter apparatus of claim 28 ...

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Номер записи: 98
19-04-2018 дата публикации

COMPOSITIONS AND METHODS FOR RETARDING THE FORMATION OF INSOLUBLE BYPRODUCTS IN WATER SOFTENERS

Номер: US20180105440A1
Автор: Brown Geoffrey A., Poe Jerry, Shelite Kristopher
Принадлежит:

Novel water softening products and methods of treating hard water are provided. The products comprise a chloride-free, organic salt and a chelating agent. The products are useful for regenerating ion exchange material in a water softening system and providing softened water containing both sodium and potassium ions, while avoiding the formation of undesirable precipitates (e.g., low Ksp byproducts). 1. A method for regenerating a water treatment ion exchange material , comprising contacting a cation exchange material with an aqueous regenerant solution or dispersion consisting essentially of ions produced from a chloride-free salt and a calcium-chelating agent , said aqueous regenerant solution or dispersion produced by dissolving said chloride-free salt and said calcium-chelating agent in water , wherein said chloride-free salt is selected from the group consisting of NaHCO , NaSO , NaHPO , KHCO , KHPO , KHPO , KPO , NaPO , NaCO , KCO , and mixtures thereof.2. The method of claim 1 , wherein said chelating agent is selected from the group consisting of monomeric compounds comprising anionic moieties claim 1 , oligomeric compounds comprising anionic moieties claim 1 , and polymeric compounds comprising anionic moieties.3. The method of claim 2 , wherein said anionic moiety is selected from the group consisting of carboxylate claim 2 , phosphonate claim 2 , and sulfonate moieties claim 2 , and combinations of the foregoing.4. The method of claim 1 , wherein said chelating agent is selected from the group consisting of EDTA claim 1 , sodium succinate claim 1 , sodium citrate claim 1 , polyacrylic acid claim 1 , polymaleic acid claim 1 , polyaspartic acid claim 1 , polymers containing more than one type of anionic chelating moiety claim 1 , and mixtures thereof.5. The method of claim 1 , wherein said aqueous solution or dispersion is essentially free of chloride ions.6. The method of claim 1 , said aqueous solution or dispersion comprising from about 1% to about 10% by ...

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Номер записи: 99
19-04-2018 дата публикации

DEVICES AND METHODS FOR REMOVING DISSOLVED IONS FROM WATER USING COMPOSITE RESIN ELECTRODES

Номер: US20180105441A1
Автор: Chen Guoying, Gadgil Ashok J., Kostecki Robert, Subban Chinmayee V.
Принадлежит:

The present disclosure provides a device comprising or configured to comprise composite resin electrodes. Further provided are methods of using the device for selectively removing dissolved ions from water. 1. A method of selectively removing at least a portion of dissolved ions from water containing a first concentration of ions to be removed , the method comprising:(a) providing a system for selectively removing at least a portion of the dissolved ions to be removed from an ion-containing water, the system comprising at least one first electrode in contact with a first plurality of selective ion exchange resin (IER) particles, at least one second electrode in contact with a second plurality of IER particles, an alternating or direct current voltage source, a chamber containing or defined by the at least one first electrode and the at least one second electrode, an inlet, and a first outlet, wherein the at least one first electrode, the at least one second electrode, and the direct (DC) or alternating (AC) current voltage source are in electrical communication with each other and the chamber is in fluid communication with the inlet and the first outlet, wherein the voltage source is configured so that the direction of a current to the at least one first electrode and the at least one second electrode can be switched; and wherein the first and second plurality of IER particles independently have selectivity for one or more ions to be removed;(b) providing a flow of water containing the first concentration of ions, said flow moving from the inlet into the chamber and out of the first outlet, wherein, in the chamber, one or more dissolved ions to be removed associate to the first and/or second plurality of selective IER particles, wherein water containing a second concentration of one or more of said dissolved ions to be removed flows out of the chamber via the first outlet, and wherein said second concentration of ions is lower than said first concentration of ions;( ...

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Номер записи: 100