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A method for degrading sewage COD based on visible light catalysis-electrocatalysis air oxidation

A technology for air oxidation and degradation of sewage, which is applied in the fields of oxidized water/sewage treatment, chemical instruments and methods, light water/sewage treatment, etc. It can solve the problems of difficult industrialization, low current efficiency, and high energy consumption.

Active Publication Date: 2018-11-30
ANHUI PUSHI ECOLOGICAL ENVIRONMENT ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It directly or indirectly generates hydrogen radicals through electrode reactions, thereby effectively degrading refractory biochemical pollutants. However, the current efficiency of this process for degrading organic matter is low, and the energy consumption is high, so it is difficult to realize industrialization.

Method used

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Embodiment Construction

[0014] In order to have a further understanding and understanding of the structural features of the present invention and the achieved effects, the detailed description of the preferred embodiment is as follows:

[0015] A method for degrading sewage COD based on visible light catalysis-electrocatalysis air oxidation, comprising the following steps: A. According to adding 0.1g of Ruth-2 ruthenium catalyst per liter of sewage, the phases in the sewage are uniformly dispersed by mechanical stirring; B. Pump the uniformly stirred sewage in step A into the electrolytic cell equipped with graphene electrodes, power on and electrolyze, and use an air pump to feed air from the bottom of the electrolytic cell at the same time, and react for 3 hours; C. Stop power on and aeration after the reaction, and degrade The final sewage is filtered through the filter device after standing still. The graphene electrode is a Graph-proA electrode. Use graphene electrode Graph-proA electrochemical...

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Abstract

The invention discloses a method for degrading sewage COD based on visible light catalysis-electrocatalysis air oxidation, comprising the following steps: A. According to adding 0.1g of Ruth-2 ruthenium catalyst to each liter of sewage, the phases in the sewage are dispersed by mechanical stirring Uniform; B. pump the uniformly stirred sewage in step A into the electrolytic cell equipped with graphene electrodes, power on and electrolyze, and use an air pump to feed air from the bottom of the electrolytic cell at the same time, and react for 3 hours; C. Stop power on and After aeration, the degraded sewage is filtered through the filter device after standing still. Compared with the prior art, the beneficial effects of the present invention are: 1) The treated sewage can be directly discharged or subjected to biological purification; 2) The remaining Ruth-2 ruthenium catalyst can be recycled after being recovered and treated.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a method for degrading sewage COD based on visible light catalysis-electrocatalysis air oxidation. Background technique [0002] With the development of modern industry, the discharge of various types of sewage is increasing day by day, the color of sewage is getting darker, and it contains more and more refractory toxic organic components. However, traditional organic sewage treatment methods have many defects. , it is difficult to degrade substances such as rhodamine B and methyl orange, and cannot meet the requirements of environmental protection and sustainable development. The advanced oxidation process (Advanced Oxidation Processes, AOPs), especially the photocatalytic oxidation and electrocatalytic oxidation technology has attracted more and more attention, and has become a research hotspot of new technologies for the treatment of toxic and harmful organic pollutants. [0...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/46C02F1/74C02F1/30
CPCC02F1/30C02F1/4672C02F2305/10
Inventor 张宁迁鲍习舟石凯元石磊
Owner ANHUI PUSHI ECOLOGICAL ENVIRONMENT ENG