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Ultraviolet-assisted ultrasonic coupling electrocatalytic oxidation water treatment system and water treatment method

A technology of electrocatalytic oxidation and water treatment system, which is applied in the field of ultraviolet-assisted ultrasonic coupled electrocatalytic oxidation water treatment system and water treatment, which can solve the problems of low degradation efficiency and achieve high catalytic activity, excellent electrical conductivity and high corrosion resistance Effect

Active Publication Date: 2020-09-08
NANJING DAIMONTE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing electrochemical advanced oxidation technology still has the defect of low degradation efficiency when it is applied to the treatment of high-concentration and refractory organic wastewater, which limits the practical application of electrochemical oxidation degradation technology in the water treatment process.

Method used

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  • Ultraviolet-assisted ultrasonic coupling electrocatalytic oxidation water treatment system and water treatment method

Examples

Experimental program
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Effect test

Embodiment 1

[0060] Such as figure 1 As shown, a UV-assisted ultrasonic coupling electrocatalytic oxidation water treatment system includes a pH adjustment tank 2, a particle filter module 3, the output of the pH adjustment tank 2 is connected to the particle filter module, and the outlet of the particle filter module 3 is connected to the microbial desalination Module 4, the outlet of microbial desalination module 4 is connected to electrochemical degradation module 5,

[0061] Among them, the pH adjustment pool 2 is used to adjust the pH value of the water. According to the water quality, the pH value of the water is adjusted to 6-8 by inputting lye or acid;

[0062] Wherein, the particle filter module 3 is used to filter the water after adjusting the pH value; the water with the adjusted pH value is transported to the particle filter module 3 by an automatic pump, and is filtered and separated by the filter material in the particle filter module 3, and the obtained filtrate ( The filte...

Embodiment 2

[0074] Other conditions are the same as in Example 1, except that the anodes used are two sets of flat plate electrodes parallel to each other but not in contact with each other, which are respectively placed at the left and right ends of the cathode, with a distance of about 1 cm from the cathode. Use the above system to degrade the same landfill leachate, and apply the same average current of 1.5A. As the degradation time increases, the color of the water changes from dark to light, and finally close to clarity. The specific water sample with the degradation time is shown in the figure figure 2 . After 18 hours of degradation, the water body is basically transparent and clear, and its COD removal rate reaches 98.66%.

Embodiment 3

[0076] Other conditions are different from Example 1, except that the substrate of the boron-doped diamond electrode material is porous TiC-Cr material. The above-mentioned system is also used to degrade the chemical wastewater of a certain factory. The average current is 1.5A, and the color of the water gradually becomes lighter. After 22 hours The degraded water gradually became clearer, and the COD removal rate was found to be 97.2%.

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Abstract

The invention discloses an ultraviolet-assisted ultrasonic coupling electrocatalytic oxidation water treatment system. The system is characterized by comprising a pH regulating tank, a particle filtering module, a microorganism desalting module and an electrochemical degradation module; the electrochemical degradation module comprises an ultrasonic generator, an ultraviolet lamp and a plurality ofprocessing units; any processing unit comprises an anode and a cathode, and the anode is a boron-doped diamond electrode. The invention provides an ultraviolet-assisted ultrasonic coupling electrocatalytic oxidation water high-efficiency energy-saving treatment system. The electrochemical degradation module with the boron-doped diamond electrode as the anode serves as a main body, an ultrasonic generator and an ultraviolet lamp are arranged in the electrochemical degradation module, ozone is generated through the ultraviolet lamp, and coupling linkage of an electrochemical degradation technology, an ultrasonic degradation technology, an ozone degradation technology and an ultraviolet catalytic degradation technology is achieved. Compared with the same type of water treatment technology, the coupling of the four technologies enables the degradation efficiency to be higher, the energy consumption to be reduced, and the system can be widely applied to the treatment of various types of water.

Description

technical field [0001] The invention relates to an ultraviolet-assisted ultrasonic coupling electrocatalytic oxidation water treatment system and a water treatment method, belonging to the technical field of water treatment. Background technique [0002] High-concentration, refractory organic wastewater has always been a problem in the field of water treatment. Most industrial production wastewater, especially chemical, printing and dyeing, food, and pharmaceutical wastewater, basically has the characteristics of high salt, high ammonia nitrogen, and high organic matter concentration (COD reaches 10,000 to hundreds of thousands), and some are even toxic. Traditional treatment methods for this type of wastewater include physical and chemical coagulation sedimentation + biochemical anaerobic + aerobic + advanced treatment, wet catalytic oxidation, ultraviolet photocatalytic ozone oxidation and other treatment technologies, but they have long reaction time, low treatment effici...

Claims

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Application Information

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IPC IPC(8): C02F9/14
CPCC02F9/00C02F1/001C02F1/66C02F1/36C02F1/32C02F1/46109C02F2001/46138C02F2001/46142C02F1/4672C02F1/78C02F1/725C02F3/34Y02W10/10
Inventor 魏秋平周科朝马莉王宝峰王立峰施海平陈伟鹏
Owner NANJING DAIMONTE TECH CO LTD
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