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A simultaneous sterilization and disinfection system for reverse osmosis membrane damage detection

A reverse osmosis membrane, sterilization and disinfection technology, applied in the field of water treatment, can solve the problems of loss of bacteria and virus interception ability, decline of reverse osmosis membrane filtration performance, inability to kill bacteria and viruses, etc., to ensure biological safety and simple structure , the effect of less power consumption

Active Publication Date: 2021-11-30
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the operation of the reverse osmosis membrane, the corrosion of chemical reagents or the damage caused by inorganic substances in the water will lead to the decrease of the filtration performance of the reverse osmosis membrane, and at the same time lose the ability to intercept bacteria and viruses, causing great safety hazards to water reuse.
Due to the variety of bacteria and viruses in water, the detection technology for escaped bacteria and viruses after membrane damage is complex, cumbersome and poor in timeliness; Bacteria and viruses escaping from damaged areas are killed, which poses a safety hazard to water reuse

Method used

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  • A simultaneous sterilization and disinfection system for reverse osmosis membrane damage detection

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Experimental program
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Embodiment 1

[0026] Such as figure 1 As shown, a reverse osmosis membrane damage detection synchronous sterilization and disinfection system provided in this embodiment, a reverse osmosis device is installed in front of the system, and the reverse osmosis device includes a heat exchanger 1, a water inlet tank 2, and a stirrer located in the water inlet tank 2 3. The pump 4 arranged at the bottom of the water inlet tank, the pressure gauge 5 arranged on the outlet pipe 4-1, the valve 7 arranged on the outlet pipe 4-1 and behind the pressure gauge 5, the valve connected to the outlet pipe 4-1 The reverse osmosis membrane assembly 8, the return pipe 9 that is connected with the reverse osmosis membrane assembly 8 and is used for backflow, the liquid flow meter that is arranged on the return pipe 9 and the reverse osmosis membrane that is connected with the reverse osmosis membrane damage detection synchronous sterilization and disinfection system filter out The water pipe 10 is characterized ...

Embodiment 2

[0031] The basic structure of this embodiment is consistent with Embodiment 1, the difference is:

[0032] In this embodiment, activated carbon cloth is used as the porous cathode 11. The aperture of the activated carbon cloth is 0.1 mm, the thickness is 5 mm, and the area is 12.56 cm. 2 . A titanium-based tin-antimony electrode is used as the porous anode 13, with a pore diameter of 2 mm, a thickness of 3 mm, and an area of ​​12.56 cm 2 . Use polyester mesh as the insulation mesh 12, the aperture is 5mm, the thickness is 2mm, and the area is 12.56cm 2. Power supply 19 is a DC stabilized power supply, and output voltage is 2.5V, and the sensitivity of current detector 17 is 0.01mA, and the warning value of siren 18 is set to 0.1mA (when the electric current ≥ 0.1mA of the detection circuit of ammeter, siren sounds the alarm). The reverse osmosis device in this embodiment uses a reverse osmosis membrane cross-flow device, and the effective area of ​​its reverse osmosis mem...

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Abstract

The invention provides a reverse osmosis membrane damage detection synchronous sterilization and disinfection system. A reverse osmosis device is arranged in front of the system, and the system includes a filter assembly wrapped in a filter frame connected to a filter outlet pipe of the reverse osmosis membrane and a filter water outlet; the filter assembly consists of It includes porous cathode, insulating net and porous anode from top to bottom. The porous cathode and porous anode are respectively connected to the negative pole and positive pole of the power supply. The current detector is arranged on the wire connecting the porous anode and the positive pole of the power supply. electrical connection. The system provided by the present invention can detect whether there is a current value and its intensity caused by membrane damage through the current detector connected with the alarm, and if the membrane is damaged, an alarm will be issued, and the electrochemical filtration sterilization and disinfection detection device will detect the damage from the reverse osmosis membrane at the same time. Escaped bacteria and viruses are killed. The invention has a simple structure, can realize synchronous sterilization and disinfection of the completeness detection of the reverse osmosis membrane, and ensures the safety of reuse of effluent from the reverse osmosis membrane.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to a reverse osmosis membrane damage detection synchronous sterilization and disinfection system, which is suitable for detecting reverse osmosis membrane damage and simultaneously killing bacteria and viruses passing through the membrane damage. Background technique [0002] Reverse osmosis membranes can simultaneously remove a wide range of pollutants, including total dissolved solids, pathogens (bacteria and viruses), and low-molecular-weight chemical pollutants, and have broad application prospects in seawater desalination, brackish water desalination, and wastewater reuse. However, during the operation of the reverse osmosis membrane, the corrosion of chemical reagents or the damage caused by inorganic substances in the influent will lead to the degradation of the filtration performance of the reverse osmosis membrane, and at the same time lose the ability to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D65/10C02F1/44C02F1/467
CPCB01D65/102C02F1/441C02F1/4672
Inventor 王志伟雷倩陈妹王巧英吴志超
Owner TONGJI UNIV
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