A method and device for treating organic wastewater by electro-Fenton method

A technology of organic wastewater and Fenton method, applied in energy wastewater treatment, water/sewage treatment, chemical instruments and methods, etc., can solve problems such as hindering the recycling of Fe2+, affecting the effect of electro-Fenton method degradation, etc., to achieve the removal rate High, simple and efficient processing
CN106495369BActive Publication Date: 2019-12-10INST OF ENVIRONMENT & SUSTAINABLE DEV IN AGRI CHINESE ACADEMY OF AGRI SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
INST OF ENVIRONMENT & SUSTAINABLE DEV IN AGRI CHINESE ACADEMY OF AGRI SCI
Publication Date
2019-12-10

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Abstract

The invention relates to a method and a device for treating organic wastewater by virtue of an Electro-Fenton method. The method comprises the following steps: (1) enabling a compound catalyst to be in contact with organic wastewater, so as to adsorb organic pollutants; and (2) carrying out electrolytic treatment on the organic wastewater under an oxygen introduction or aeration condition. By virtue of the method, the compound catalyst is combined with an Electro-Fenton reaction system so as to treat the organic wastewater, the compound catalyst is capable of adsorbing and purifying the organic pollutants in the organic wastewater and generating ferrous ions as a catalyst of the Electro-Fenton reaction system to generate hydroxyl radicals together with hydrogen peroxide generated in an electrolysis system, and the organic pollutants in the organic wastewater are further removed by virtue of oxidization of hydroxyl radicals; meanwhile, the compound catalyst can be repeatedly utilized; and the method can be further combined with measures such as microwaves and photochemistry, so that the treatment effect is improved. By virtue of the method and the device, the organic wastewater is simply and efficiently treated, and the removal rate of the organic pollutants is high.
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Description

technical field

[0001] The present disclosure relates to the field of organic wastewater treatment, in particular, to a method and device for treating organic wastewater by electro-Fenton method. Background technique

[0002] With the continuous development of society, the problem of environmental pollution has become a global concern. The discharge of a large number of agricultural, domestic and industrial sewage has seriously polluted the water environment. Among them, organic pollutants have many types, complex material structures, and are toxic. There are a series of problems such as strong harmfulness and high concentration. Therefore, how to deal with organic pollutants in water is the focus and difficulty in environmental protection research.

[0003] In recent years, significant progress has been made in the research of advanced oxidation technology to treat refractory organic polluted wastewater. The emergence of oxidation technologies represented by ozone oxidatio...

Claims

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