Methods and Systems for Managing a User Profile Picture Associated with an Indication of User Status on a Social Networking System

A client device receives from a user, in an application associated with a social networking service provided by a server system, a first user input for creating a first post on a social networking system. In response to the first user input, a plurality of icons for selection by the user are displayed. A selection of a first icon from the plurality of icons is received from the user. The first post including a first image associated with the user is posted to the social networking system. The first image includes the first icon overlaying at least a portion of a profile picture of the user.

DYNAMICALLY GENERATING CUSTOMIZED MEDIA EFFECTS

The present disclosure is directed toward systems and methods for generating dynamic media effects ready for sending/posting to allow for in-moment sharing of media communications. One or more embodiments involve dynamically identify contextual information associated with a current environment of a client-computing device (e.g., a mobile phone) associated with a user. The systems and methods utilize the contextual information to generate a customized media effect that the user can share, post, or send to others quickly and easily in order to tell a robust story about an in-moment experience. 1. A method comprising:determining, by at least one processor, one or more of device characteristics associated a client-computing device or user information associated with a user of the client-computing device;determining, based on the determined one or more of the device characteristics or the user information and without user input, contextual information; identifying a media effect template comprising at least one media effect and at least one field for inserting an additional media effect,', 'generating the additional media effect based on the contextual information, and', 'inserting the additional media effect into the at least one field; and, 'generating, by the at least one processor, a customized media effect based on the contextual information byproviding a preview of the customized media effect.2. (canceled)3. The method as recited in claim 1 , wherein identifying the media effect template comprises:identifying one or more correlations between the contextual information and metadata associated with each of a plurality of media effect templates;scoring media effect templates of the plurality of media effect templates based on the identified one or more correlations; andselecting the media effect template based on the media effect template having a high score.4. The method as recited in claim 1 , wherein the media effect template comprises an overlay template.5. The ...

SYSTEM FOR TREATING REVERSE-OSMOSIS CONCENTRATED WATER WITH PERMANENT HARDNESS

The invention relates to sewage treatment, and more particularly to a system for treating reverse-osmosis concentrated water with permanent hardness. The system includes a first crystallization unit, a first reverse osmosis unit, a second crystallization unit, a lime softening unit and a second reverse osmosis unit, which are connected in sequence. The system of the invention is able to eliminate the permanent hardness and the temporary hardness of the concentrated brine, and the hardness can be reduced to equal to or less than 50 mg/L. 1. A system for treating reverse-osmosis concentrated water with permanent hardness , comprising a first crystallization unit , a first reverse osmosis unit , a second crystallization unit , a lime softening unit and a second reverse osmosis unit , wherein the first crystallization unit , the first reverse osmosis unit , the second crystallization unit , the lime softening unit and the second reverse osmosis unit are connected in sequence.2. The system of claim 1 , wherein the first crystallization unit comprises a first crystallizer claim 1 , a first thickener and a first centrifugal dehydrator;an inlet of the first crystallizer is connected to a concentrated brine inlet pipe and a first feeding container configured to feed a first flocculant and a first seed crystal;an inlet of the first thickener is connected to a first crystal mush outlet of the first crystallizer; andan outlet of the first thickener is connected to an inlet of the first centrifugal dehydrator.3. The system of claim 2 , wherein the first reverse osmosis unit comprises a first multi-media filter and a first reverse osmosis membrane device;an inlet of the first multi-media filter is connected to a water outlet of the first crystallizer, a water outlet of the first thickener and a water outlet of the first centrifugal dehydrator;an outlet of the first multi-media filter is connected to an inlet of the first reverse osmosis membrane device; andthe first reverse ...

Drinking water purification system comprising a backwashable filter cartridge and a nanofiltration unit

Total nitrogen removal device for sewage and method for operating the same

A total nitrogen (TN) removal device for sewage and its operation method. The TN removal device includes a denitrification tank, a supplementary reaction zone filled with aerobic granular sludge and a sedimentation and separation zone. The supplementary reaction zone and the sedimentation and separation zone are arranged inside the denitrification tank, and communicated through a three-phase separator. The sedimentation and separation zone is located above the supplementary reaction zone. A top of the sedimentation and separation zone is greater than its bottom. A membrane aerated biofilm reactor (MABR) assembly is arranged in a space formed by outer walls of the sedimentation and separation zone and supplementary reaction zone and an inner chamber of the denitrification tank. A side wall of the denitrification tank is provided with a chemical oxygen demand (COD) detector and a nitrate nitrogen detector.

System and method for treating reverse-osmosis concentrated water with high temporary hardness

A system and method for treating reverse-osmosis (RO) concentrated water with high temporary hardness. The system includes a crystallization unit, a precipitation unit, a dewatering unit, and a programmable logic controller (PLC) system. The crystallization unit, precipitation unit and dewatering unit are connected in series, and the PLC system is configured to control pumps, valves, and displays in the crystallization unit, precipitation unit and dewatering unit. The crystallization unit includes a storage tank and a crystallization reactor communicated therewith. The crystallization reactor is provided with a pH meter, a liquid-level gauge, and a stirrer. A connection pipe between the crystallization reactor and the RO concentrated water is provided with an inlet pump and a inlet valve. A connection pipe between the crystallization reactor and the storage tank is provided with a feeding pump and a feeding valve.

Dosing control method for micro-flocculation in ultrafiltration

Drinking water purification system with a backwashable filter cartridge and a nanofiltration system

The present disclosure provides a drinking water purification system with a backwashable filter cartridge and a nanofiltration system. The drinking water purification system includes a backwashable pre-filtration unit, a nanofiltration unit and a cleaning unit. The backwashable pre-filtration unit is provided with a backwashable filter cartridge. The nanofiltration unit is provided with a nanofiltration filter cartridge. A water outflow side of the backwashable filter cartridge is connected to a water inflow side of the nanofiltration filter cartridge. The cleaning unit is connected to the water outflow side of the backwashable filter cartridge.

Dosing control method and system for micro-flocculation in ultrafiltration

A dosing control method for micro-flocculation in ultrafiltration, including: calculating a preset value of a first differential pressure before an initial backwash and a preset value of a second differential pressure before a final backwash in each chemically enhanced backwash cycle; calculating a preset value of a third differential pressure between the first differential pressure and the second differential pressure according to the preset value of the first differential pressure and the preset value of the second differential pressure; obtaining a predicted value of the third differential pressure according to a differential pressure curve plotted based on online filtration differential pressure data; and comparing the preset value of the third differential pressure and the predicted value of the third differential pressure to determine whether to dose. A dosing control system is also provided.

System and method for treating reverse-osmosis concentrated water with high temporary hardness

A system and method for treating reverse-osmosis (RO) concentrated water with high temporary hardness. The system includes a crystallization unit, a precipitation unit, a dewatering unit, and a programmable logic controller (PLC) system. The crystallization unit, precipitation unit and dewatering unit are connected in series, and the PLC system is configured to control pumps, valves, and displays in the crystallization unit, precipitation unit and dewatering unit. The crystallization unit includes a storage tank and a crystallization reactor communicated therewith. The crystallization reactor is provided with a pH meter, a liquid-level gauge, and a stirrer. A connection pipe between the crystallization reactor and the RO concentrated water is provided with an inlet pump and a inlet valve. A connection pipe between the crystallization reactor and the storage tank is provided with a feeding pump and a feeding valve.

System and method for treating printed circuit board (pcb) wastewater

A system for treating printed circuit board wastewater (PCB) includes a production system, a pretreatment system, a biochemical system, a recovery system and a concentrated water treatment system. The production system is configured for producing process water and auxiliary water from tap water. The pretreatment system is configured to pretreat different wastewater samples separately. The biochemical system is configured to decompose the pretreated wastewater. The recovery system is configured to treat wastewater from the pretreatment system and the biochemical system to obtain process water and feed concentrated water to the concentrated water treatment system. The concentrated water treatment system is configured to treat the concentrated water to meet a discharge standard. A treatment method for the PCB wastewater is also provided.

Hollow fiber nanofiltration membrane system and control method thereof

A hollow fiber nanofiltration membrane system and its control method are provided. The system includes a water feeding system, a return system, a hollow fiber nanofiltration membrane group, a water production system, a cleaning system, a dosing system and a program control system. Through the self-matching, self-adaptation and self-adjustment functions of the program control system, an intelligent and accurate operation control is formed according to water quality and operation condition. In the control method, the program control system presets an operation mode according to a preset working condition and an inlet water quality, automatically selects whether to add the scale inhibitor or perform concentrated water return at a beginning of filtration, automatically outputs a dosage of the scale inhibitor or the concentrated water return flow, and monitor a change of the inlet water quality, and the feedwater pressure or a transmembrane pressure in real time.

Method for controlling hollow fiber nanofiltration membrane system with controllable power consumption

A method for controlling a hollow fiber nanofiltration membrane system with controllable power consumption, including the following steps. A filtration flow rate is determined by the program control system according to preset working conditions and the electricity price and the inlet water temperature obtained by a first monitoring module when the hollow fiber nanofiltration membrane assembly is started to perform a filtration process. The inlet water pressure change and the permeability change are monitored and recorded by a second monitoring module during the filtration process. A flushing mode and a flushing intensity of the cleaning system are determined by the program control system according to the inlet water pressure change and the permeability change during the filtration when the filtration process is completed.

Saline wastewater treatment method and system

A saline wastewater treatment method is provided. Raw water is pretreated to obtain pretreated raw water. The pretreated raw water is pressurized to a preset pressure, injected with zone, separated and filtered by a filtering device with a hollow fiber nanofiltration membrane or a hollow fiber reverse osmosis membrane inside to obtain a concentrate and a permeate. A pressure of the concentrate is controlled such that ozone in the concentrate is released to form micro-nano bubbles. The concentrate is partially injected into the pretreated raw water. A pressure of the permeate and a pressure of the raw water are respectively controlled such that ozone in the permeate and the raw water is released inside the filtering device to form micro-nano bubbles to flush the hollow fiber nanofiltration membrane or the hollow fiber reverse osmosis membrane. A saline wastewater treatment system is also provided.

System and method for treating printed circuit board (PCB) wastewater

A system for treating printed circuit board wastewater (PCB) includes a production system, a pretreatment system, a biochemical system, a recovery system and a concentrated water treatment system. The production system is configured for producing process water and auxiliary water from tap water. The pretreatment system is configured to pretreat different wastewater samples separately. The biochemical system is configured to decompose the pretreated wastewater. The recovery system is configured to treat wastewater from the pretreatment system and the biochemical system to obtain process water and feed concentrated water to the concentrated water treatment system. The concentrated water treatment system is configured to treat the concentrated water to meet a discharge standard. A treatment method for the PCB wastewater is also provided.