Pre-oxidation method based on preparation of hydrogen peroxide through electrolysis of filter-type electrodes

A hydrogen peroxide, pre-oxidation technology, applied in chemical instruments and methods, oxidized water/sewage treatment, water/sewage treatment, etc., can solve problems such as exceeding the standard, prevent equipment pollution, avoid excessive chemical residues and harmful disinfection. The effect of excessive by-products and improving the water purification effect

Inactive Publication Date: 2018-06-26
HARBIN HAOWEI WEIYE TECH DEV CO LTD
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Problems solved by technology

[0003] In order to solve the above problems, the present invention proposes a pre-oxidation method for producing hydrogen peroxide by filter-type electrode electrolysis, which replaces the traditional pre-oxidation treatment method of adding chemical agents, so that the water plant can prevent equipment pollution and improve water purification effect. Fundamentally avoid the problems of excessive chemical residues and harmful disinfection by-products, and ensure the quality of water supply and the safety of drinking water for residents

Method used

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Embodiment Construction

[0010] The pre-oxidation method of hydrogen peroxide produced by filter type electrode electrolysis of the present invention comprises the following steps:

[0011] The first step is to establish an accurate analysis method to detect the concentration of active substances such as hydrogen peroxide, active chlorine and hydroxyl radicals generated during the electrolysis process;

[0012] The second step is to research and develop the cathode of high-performance electrogenerated hydrogen peroxide and the anode of lead-free alloy with stretched mesh, to produce strong oxidizing substances such as hydrogen peroxide with a suitable concentration by electrolysis, and to find out the influencing factors and laws of electrogenerated hydrogen peroxide , and investigate the degradation ability of the electrolysis device to disinfection by-products and other pollutants in water;

[0013] The third step is to develop a Fenton-like reaction catalyst with superior performance, low cost, and...

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Abstract

The invention discloses a pre-oxidation method based on preparation of hydrogen peroxide through electrolysis of filter-type electrodes. The pre-oxidation method comprises the following steps: step 1,establishing an accurate analysis method; step 2, researching and developing a high-performance negative electrode capable of producing hydrogen peroxide through electrolysis, and a dragnet-type lead-free alloy positive electrode; step 3, developing a Fenton-like reaction catalyst having excellent performance and low cost and applicable to a drinking water environment; and step 4, designing a pre-oxidation water purification apparatus based on preparation of hydrogen peroxide through electrolysis of the filter-type electrodes. The pre-oxidation method based on preparation of hydrogen peroxidethrough electrolysis of the filter-type electrodes replaces conventional treatment manners of pre-oxidation through addition of extra chemical agents, so equipment contamination in a water plant is prevented, water purification effect is improved, the problem that external chemical agent residues and harmful disinfection by-products exceed standards is overcome from the source, and water supply quality and drinking water safety of residents are guaranteed.

Description

technical field [0001] The invention relates to a drinking water pre-oxidation method, in particular to a pre-oxidation method for producing hydrogen peroxide by filter electrode electrolysis, and belongs to the technical field of water purification. Background technique [0002] Water is the source of life and indispensable for human survival and development. About 1.4 billion people in the world lack reliable and safe drinking water, and millions of people die every year from various diseases caused by drinking water pollution. Safe drinking water is very important to human life. The disinfection and purification of drinking water should be highly valued. In order to reduce bacteria and algae and other microorganisms in water, and reduce the process of organic matter content in drinking water disinfection, among many drinking water disinfection methods, chlorine Disinfection is still an important treatment method for urban water supply in China at present. Chlorination dis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/461C02F1/72
CPCC02F1/461C02F1/725C02F2305/023
Inventor 于海涛
Owner HARBIN HAOWEI WEIYE TECH DEV CO LTD
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