Electrocatalysis-ozone-membrane filtration three-in-one wastewater treatment device

A three-in-one, membrane filtration technology, applied in the direction of oxidized water/sewage treatment, special compound water treatment, water/sewage treatment, etc., can solve the problems of low utilization rate of oxygen and ozone, achieve good water effluent effect, efficient degradation, simple structure Effect

Active Publication Date: 2021-06-25
ZHEJIANG GONGSHANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In the prior art, most gases diffuse freely throughout the catalytic system, and only the oxygen near the cathode can be reduced to H 2 o 2 After being further generated by the ozone capture reaction . OH, so oxygen and ozone utilization is low

Method used

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  • Electrocatalysis-ozone-membrane filtration three-in-one wastewater treatment device

Examples

Experimental program
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Effect test

Embodiment 1

[0061] An electrocatalysis-ozone-membrane filtration trinity wastewater treatment device includes a reaction tank 1, a water inlet system, a power supply 5, an anode 6, a cathode membrane assembly, an ozone generation system, a water outlet system and a catch tank 32.

[0062] The cathode membrane assembly includes a microporous multi-channel tubular conductive ceramic membrane 7, a first cover 81 and a second cover 82, and the upper and lower ends of the microporous multi-channel tubular conductive ceramic membrane 7 are connected to the first cover 81 respectively. , the upper cavity 74 and the lower cavity 76 formed by the second cover 82, the first cover 81 is provided with a water outlet 25; the second cover 82 is provided with an air inlet 77; the micropore The multi-channel tubular conductive ceramic membrane 7 has a pore size of 20 μm, and the number of channels is 7, of which there are 4 channels sealed at the upper end and 3 channels sealed at the lower end, and the c...

Embodiment 2

[0073] The difference from Example 1 is that the microporous multi-channel tubular conductive ceramic membrane 7 is prepared by the following method.

[0074] Soak the multi-channel tubular ceramic membrane 7 with a pore size of 20 μm (the base material is SiC) in saturated NaOH-ethanol solution and ultrapure water for cleaning, take it out and wash it, place it in a glucose solution for suspension and stirring for 24 hours, and then place it in the Vacuum drying was carried out at 160° C., and carbonization was carried out at 650° C. for 2 hours under the protection of a nitrogen atmosphere, so as to prepare a carbon-deposited multi-channel tubular conductive ceramic film 7 .

[0075] The specific mode of operation of the device of the present invention is

[0076] Concrete mode of operation 1-use the device of embodiment 2 of the present invention

[0077] S1: The organic wastewater enters the reaction pool 1 through the water inlet system, and the power supply 5 is powered...

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Abstract

The invention relates to the field of organic wastewater degradation, in particular to an electrocatalysis-ozone-membrane filtration three-in-one wastewater treatment device and process. The invention relates to an electrocatalysis-ozone-membrane filtration three-in-one cathode membrane assembly. The cathode membrane assembly comprises a microporous multichannel tubular conductive ceramic membrane, and an upper end cavity and a lower end cavity which are formed by a sealing material; the number of channels is more than or equal to 2, at least one channel with a sealed upper end and one channel with a sealed lower end are arranged, and the channel with the sealed upper end and the channel with the sealed lower end are adjacently arranged; a water outlet is formed in the upper end cavity; and an air inlet is formed in the lower end cavity. According to the membrane assembly, deep oxidation of ozone can be limited near the cathode, and the concentration of OH near the cathode is higher through ozonation reaction with H2O2 generated by electric reduction of O2, so that the sewage treatment effect is better, and the ozone utilization rate is higher.

Description

technical field [0001] The invention relates to the field of organic waste water degradation, in particular to a waste water treatment device and process integrating electrocatalysis-ozone-membrane filtration. Background technique [0002] Organic wastewater mainly comes from pharmaceutical wastewater, printing and dyeing wastewater, pesticide wastewater, and landfill leachate wastewater. Refractory organic wastewater and other pollutants will quickly cause pollution of natural elements such as water and soil after being discharged into natural water bodies and soils. Organic pollutants remain in the natural environment for a long time and cannot be degraded. At present, the commonly used treatment methods for refractory organic wastewater mainly include adsorption, membrane treatment, advanced oxidation, and zero-valent metal reduction technology. [0003] Advanced oxidation technology (AOPs) based on its hydroxyl radical ( . OH) production methods can be divided into the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/06C02F1/461C02F1/78C02F1/44C02F1/24C02F101/30C02F101/34C02F101/36C02F101/38
CPCC02F9/00C02F1/46109C02F2001/46133C02F1/78C02F1/44C02F1/24C02F2001/46161C02F1/722C02F2101/34C02F2101/36C02F2101/38C02F2201/002C02F2209/08C02F2305/023
Inventor 夏伊静叶玲冯华军马香娟蔡靖
Owner ZHEJIANG GONGSHANG UNIVERSITY
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