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Electricity-membrane coupled water treatment system with clean energy and water treatment method

A treatment system and coupled water technology, applied in water/sewage treatment, chemical instruments and methods, water/sewage multi-stage treatment, etc., can solve the problems of limiting the practical application of electrochemical oxidation degradation technology, low degradation efficiency, and high energy consumption

Pending Publication Date: 2020-09-18
江苏净钻环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing electrochemical water treatment system still has the defects of high energy consumption and low degradation efficiency, which limits the practical application of electrochemical oxidation degradation technology in water treatment.

Method used

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  • Electricity-membrane coupled water treatment system with clean energy and water treatment method
  • Electricity-membrane coupled water treatment system with clean energy and water treatment method
  • Electricity-membrane coupled water treatment system with clean energy and water treatment method

Examples

Experimental program
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Effect test

Embodiment 1

[0086] The above system is used to treat and degrade antibiotic-tetracycline hydrochloride (TCH) simulated wastewater. The TCH in the simulated organic wastewater is 1g / L. The filter module performs the second filtration, and the water filtered through the second time enters the electrochemical degradation module. After entering the electrochemical degradation module, the circulation pump is turned on. During the electrochemical treatment process, the electrolyte concentration is sodium sulfate (0.01M), and the applied current is 0.6A, the ultrasound is provided by the ultrasonic generation template, the power of the ultrasound provided is 100W, the ozone is fed into the gas control module, the output of ozone is 150g / min, and the concentration of ozone is 25mg / L; The water is then separated by nanofiltration through the nanofiltration separation module, and the intercepted concentrated water is returned to the electrochemical degradation module for electrochemical oxidation tr...

Embodiment 2

[0089] The above-mentioned system is used to degrade the high-salt wastewater of a chemical plant in Shandong. The high-salt wastewater first enters the coarse filtration module for the first filtration, and then enters the fine filtration module for the second filtration, and the second-filtered water enters the electrochemical degradation module. , after entering the electrochemical degradation module, turn on the circulating water pump. During the electrochemical treatment, the electrolyte concentration is sodium sulfate (0.01M), the applied current is 0.6A, and the ultrasound is provided by the ultrasonic generator template. The power of the ultrasound is 100W. The gas control module is fed with ozone, the ozone output is 150g / min, and the ozone concentration is 25mg / L; the electrochemically treated water is obtained through electrochemical oxidation treatment, and then the nanofiltration separation module is used for nanofiltration separation. The water returns to the elec...

Embodiment 3

[0092] The above system is used to treat and degrade the landfill leachate. The landfill leachate first enters the coarse filtration module for the first filtration, and then enters the fine filtration module for the second filtration. After the second filtration, the water enters the electrochemical degradation module and enters the electrochemical After degrading the module, turn on the circulating water pump. During the electrochemical treatment, the electrolyte concentration is sodium sulfate (0.01M), the applied current is 0.6A, and the ultrasound is provided by the ultrasonic generation template. The power of the ultrasound is 100W, and the gas control module passes Into ozone, the ozone output is 150g / min, and the ozone concentration is 25mg / L; electrochemical oxidation treatment obtains electrochemically treated water, and then nanofiltration separation is carried out through the nanofiltration separation module, and the intercepted concentrated water is returned to the ...

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Abstract

The invention discloses an electricity-membrane coupled water treatment system with clean energy and a water treatment method. The system comprises a particle filtering module, an electrochemical degradation module, a nanofiltration separation module, a direct-current power supply and a solar power generation module. The outlet of the particle filtering module is connected to the electrochemical degradation module; the outlet of the electrochemical degradation module is connected to the nanofiltration separation module; concentrated water is returned to the electrochemical degradation module through the outlet of the nanofiltration separation module, and fresh water is discharged through the outlet. Any processing unit in the electrochemical degradation module comprises an anode and a cathode, the anode and the cathode are connected with a direct-current power supply through wires, and the direct-current power supply is connected with the solar power generation module. The anode is a gradient boron-doped diamond electrode. The provided treatment system has high chemical oxygen demand (COD) removal efficiency, high mineralization efficiency and high current utilization efficiency, and meanwhile, by introducing clean energy into the system structure, the overall energy consumption required in the water degradation process can be greatly reduced.

Description

technical field [0001] The invention relates to an energy-clean electric-membrane coupling water treatment system and a water treatment method, belonging to the technical field of water treatment. Background technique [0002] As a new type of water treatment technology, electrochemical advanced oxidation technology (EAOPs) has received extensive attention in recent years. It has the following advantages: (1) It is easy to operate, and only needs to be driven by external electrons to achieve high-concentration insoluble and refractory organic degradation. The efficient degradation and mineralization of wastewater can reduce it to the discharge standard; (2) non-selective, this technology is based on the direct oxidation of the electrode surface and the reactive oxygen species (ROS) produced by electrocatalysis in the water body, Active chlorine (RCS), active oxidizing substances such as active sulfuric acid groups (RSS) and the indirect oxidation process of organic pollutant...

Claims

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Application Information

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IPC IPC(8): C02F9/08C02F101/30
CPCC02F9/00C02F2001/46133C02F1/46109C02F1/442C02F1/001C02F1/4672C02F1/441C02F1/78C02F2201/009C02F1/36C02F2101/30
Inventor 马莉魏秋平周科朝王宝峰王立峰施海平苗冬田
Owner 江苏净钻环保科技有限公司
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