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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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Применить Всего найдено 9. Отображено 8.
09-01-2014 дата публикации

PROCESS OF PRODUCING A TITANIUM DIOXIDE-BASED PHOTOCATALYST USED FOR DEGRADATION OF ORGANIC POLLUTANTS

Номер: US20140011674A1
Автор: CHANG CHIH-YU, DOONG Ruey-An, TSAI Yung-Pin, YANG Jhih-Ci
Принадлежит: National Chi Nan University

A process of producing a titanium dioxide-based photocatalyst used for degradation of organic pollutants includes the steps of: (a) preparing a mixture solution which includes a titanium dioxide precursor and a transition metal salt having a transition metal ion which is capable of reducing a band gap of titanium dioxide; (b) aging the mixture solution so as to obtain a gel; (c) treating the gel to form an ion-doped titanium dioxide; (d) depositing silver nanoparticles on the ion-doped titanium dioxide to obtain a modified titanium dioxide-based photocatalyst; and (e) calcining the modified titanium dioxide-based photocatalyst. 1. A process of producing a titanium dioxide-based photocatalyst used for degradation of organic pollutants , comprising the steps of:(a) preparing a mixture solution which includes a titanium dioxide precursor and a transition metal salt having a transition metal ion which is capable of reducing a band gap of titanium dioxide;(b) aging the mixture solution so as to obtain a gel;(c) treating the gel to form an ion-doped titanium dioxide in which the titanium dioxide is derived from the titanium dioxide precursor and is doped by the metal ion, and which has a band gap lower than that of a titanium dioxide;(d) depositing silver nanoparticles on the ion-doped titanium dioxide to obtain a modified titanium dioxide-based photocatalyst; and(e) calcining the modified titanium dioxide-based photocatalyst.2. The process of claim 1 , wherein claim 1 , in step (c) claim 1 , the gel is subjected to a calcining process such that the ion-doped titanium dioxide has an anatase phase.3. The process of claim 1 , wherein the transition metal salt is selected from the group consisting of copper halide claim 1 , copper nitrate claim 1 , iron (III) nitrate claim 1 , and iron (III) sulfate.4. The process of claim 1 , wherein step (d) is implemented by mixing the ion-doped titanium dioxide with silver nitrate in an amide solution claim 1 , and subjecting the silver ...

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Номер записи: 1
07-04-2016 дата публикации

METHOD FOR PRODUCING MONOSACCHARIDES FROM ALGAE

Номер: US20160097107A1
Автор: CHEN Shou-Te, CIOU Jian-Hao, HUANG Zhi-Yuan, LU Meng-Shan, SHIU Hao, TSAI Yung-Pin, YANG Jhih-Ci
Принадлежит:

A method for producing monosaccharides from algae includes (a) treating algae-containing water using an electrocoagulation device having an iron-based anode to induce flocculation of algae so as to obtain flocculated algae which have a trace amount of iron derived from the iron-based anode, (b) collecting the flocculated algae from the algae-containing water, and (c) subjecting the flocculated algae to an acid hydrolysis reaction in an acid solution to obtain monosaccharides. A liquid-to-solid ratio of a volume of the acid solution to a solid content of the flocculated algae is not less than 12 ml/g. The acid solution has an acid concentration not less than 3% by volume. 1. A method for producing monosaccharides from algae , comprising the steps of:(a) treating algae-containing water using an electrocoagulation device having an iron-based anode to induce flocculation of algae so as to obtain flocculated algae which have a trace amount of iron derived from the iron-based anode;(b) collecting the flocculated algae from the algae-containing water; and(c) subjecting the flocculated algae to an acid hydrolysis reaction in an acid solution to obtain monosaccharides;wherein:a liquid-to-solid ratio of a volume of the acid solution to a solid content of the flocculated algae is not less than 12 ml/g; andthe acid solution has an acid concentration not less than 3% by volume.2. The method according to claim 1 , wherein the algae-containing water is collected from a eutrophic water body.3. The method according to claim 1 , wherein claim 1 , in step (c) claim 1 , the acid hydrolysis reaction is conducted by microwave heating a mixture of the flocculated algae and the acid solution.4. The method according to claim 1 , wherein the acid solution is a sulfuric acid solution.5. The method according to claim 4 , wherein the acid concentration ranges from 4% to 10% by volume.6. The method according to claim 5 , wherein the liquid-to-solid ratio ranges from 20 ml/g to 28 ml/g. This ...

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Номер записи: 2
02-05-2019 дата публикации

METHOD FOR EXTRACTING POLYHYDROXYALKANOATES (PHAS)

Номер: US20190127727A1
Автор: LIN Jan-Wei, LU Meng-Shan, SHIU Hao, TSAI Yung-Pin, YANG Chih-Chi
Принадлежит:

The present invention provides a method for extracting polyhydroxyalkanoates (PHAs), which comprises a pre-process step and an extraction step: removing water from waste sludge containing microorganisms in the pre-process step so that the waste sludge containing microorganisms has a water content of less than 40%; and applying a high-voltage pulsed electric field to the waste sludge during the extraction step to destroy the microorganisms and release the PHAs, wherein the high-voltage pulsed electric field is between 50 volts and 400 volts, an application time of the high-voltage pulsed electric field is between 5 seconds and 90 seconds, and an application frequency of the high-voltage pulsed electric field is between 500 Hz and 1000 Hz, thereby extracting the PHAs in the case of few chemicals. 1. A method for extracting polyhydroxyalkanoates (PHAs) , comprising the following steps:a pre-process step: removing water from waste sludge containing microorganisms so that the waste sludge containing microorganisms has a water content of less than 40%; andan extraction step: by utilizing a electroporation, applying a high-voltage pulsed electric field to the waste sludge to destroy the microorganisms and release polyhydroxyalkanoates (PHAs), wherein the high-voltage pulsed electric field is between 50 volts and 400 volts, an application time of the high-voltage pulsed electric field is between 5 seconds and 90 seconds, and an application frequency of the high-voltage pulsed electric field is between 500 Hz and 1000 Hz.2. The method of claim 1 , the high-voltage pulsed electric field is applied to the waste sludge for 15 seconds to 60 seconds at a frequency of 100 volts to 400 volts and at a frequency of 500 to 1000 Hz.3. The method of claim 1 , the extraction step further comprising a chemical extraction process claim 1 , wherein the waste sludge is subjected to a primary extraction by the electroporation claim 1 , and then subjected to the second extraction by the ...

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Номер записи: 3
13-06-2019 дата публикации

METHOD FOR INCREASING PHAs CONTENT OF WASTE SLUDGE BY FERMENTING THE WASTE SLUDGE TO PRODUCE VOLATILE FATTY ACID

Номер: US20190177753A1
Автор: Chih-Chi YANG, Hao SHIU, Jan-Wei Lin, Meng-Shan LU, Yu-Wei LIOU, Yung-Pin Tsai
Принадлежит: National Chi Nan University

The present invention relates to a method for increasing polyhydroxyalkanoates (PHAs) content of waste sludge, by taking the fermentation liquid fermented from waste sludge as a carbon source, and performing ADF domestication process, thereby quickly raising PHAs contentin the waste sludge, in accordance with the method of the present invention, the conventional complicated domestication steps is simplified and a higher content PHAs can be produced, additionally the added carbon source of the present invention is the VFA fermented by the waste sludge, so it's unnecessary to add extra material, therefore including more industrial utilization.

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Номер записи: 4
18-08-2020 дата публикации

Method for increasing PHAs content of waste sludge by fermenting the waste sludge to produce volatile fatty acid

Номер: US10745723B2
Автор: Chih-Chi YANG, Hao SHIU, Jan-Wei Lin, Meng-Shan LU, Yu-Wei LIOU, Yung-Pin Tsai
Принадлежит: National Chi Nan University

The present invention relates to a method for increasing polyhydroxyalkanoates (PHAs) content of waste sludge, by taking the fermentation liquid fermented from waste sludge as a carbon source, and performing ADF domestication process, thereby quickly raising PHAs contentin the waste sludge, in accordance with the method of the present invention, the conventional complicated domestication steps is simplified and a higher content PHAs can be produced, additionally the added carbon source of the present invention is the VFA fermented by the waste sludge, so it's unnecessary to add extra material, therefore including more industrial utilization.

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Номер записи: 5
04-02-2014 дата публикации

Method of recovering polyhydroxyalkanoates (PHAs) from municipal waste sludge

Номер: US8641908B2
Автор: Chih-Chi YANG, Meng-Shan LU, Shou-Te Chen, Yung-Pin Tsai
Принадлежит: National Chi Nan University

A method of recovering polyhydroxyalkanoates (PHAs) from municipal waste sludge includes: (a) measuring a solid content in the municipal waste sludge in terms of a volatile suspended solid in the municipal waste sludge; (b) removing supernatant from the municipal waste sludge; (c) freezing the municipal waste sludge; (d) conducting a pretreatment of the municipal waste sludge that has been frozen; (e) adding a surfactant into the pretreated sludge to obtain a slurry; (f) adding a controlled amount of sodium hypochlorite solution to the municipal waste sludge obtained in step (e), a ratio of a volume of the sodium hypochlorite solution to the solid content of the municipal waste sludge ranging from 0.67 mg/ml to 1.25 mg/ml and being defined as a liquid-solid ratio; and (g) separating PHAs from non-PHAs substances in the municipal waste sludge obtained in the step (f).

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Номер записи: 6
13-01-2022 дата публикации

Polyhydroxyalkanoates extraction system

Номер: US20220010059A1
Автор: Chih-Chi YANG, Hao SHIU, Ku-Fan Chen, Meng-Shan LU, Yung-Pin Tsai
Принадлежит: National Chi Nan University

A polyhydroxyalkanoates extraction system comprises a pretreatment subsystem, an extraction subsystem and a recycling subsystem. The pretreatment subsystem comprises a fermentation device and an activation device so as to carry out a microorganism acclimation process. The extraction subsystem comprises a freezing device, a pretreatment device and an extraction device. The extraction subsystem is used for receiving a third sludge so that the third sludge is subjected to a freezing process, a pretreatment process, an extraction process and a purification process in the freezing device to form a polyhydroxyalkanoates mixture, and the extraction device performs a precipitation process to generate polyhydroxyalkanoates precipitate. The recycling subsystem comprises an aerobic sludge digestion device and a sequencing batch reactor activated sludge treatment device so as to carry out an aerobic sludge digestion process and a sequencing batch reactor activated sludge process.

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Номер записи: 7
12-01-2012 дата публикации

Method of recovering polyhydroxyalkanoates (phas) from municipal waste sludge

Номер: US20120006754A1
Автор: Chih-Chi YANG, Meng-Shan LU, Shou-Te Chen, Yung-Pin Tsai
Принадлежит: National Chi Nan University

A method of recovering polyhydroxyalkanoates (PHAs) from municipal waste sludge includes: (a) measuring a solid content in the municipal waste sludge in terms of a volatile suspended solid in the municipal waste sludge; (b) removing supernatant from the municipal waste sludge; (c) freezing the municipal waste sludge; (d) conducting a pretreatment of the municipal waste sludge that has been frozen; (e) adding a surfactant into the pretreated sludge to obtain a slurry; (f) adding a controlled amount of sodium hypochlorite solution to the municipal waste sludge obtained in step (e), a ratio of a volume of the sodium hypochlorite solution to the solid content of the municipal waste sludge ranging from 0.67 mg/ml to 1.25 mg/ml and being defined as a liquid-solid ratio; and (g) separating PHAs from non-PHAs substances in the municipal waste sludge obtained in the step (f).

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Номер записи: 8