Sewage treatment device and sewage treatment system based on electrochemical oxidation and ultrafiltration

Abstract

The invention provides a sewage treatment device and sewage treatment system based on electrochemical oxidation and ultrafiltration. The sewage treatment device comprises an electrode ultrafiltrationassembly; the electrode ultrafiltration assembly comprises a positive main electrode plate, a negative main electrode plate, insulating net cages and flat ceramic membrane elements; the positive mainelectrode plate and the negative main electrode plate are arranged in parallel; the insulating net cages are arranged between the positive main electrode plate and the negative main electrode plate inparallel at intervals; the insulating net cages are filled with particle electrodes; the flat ceramic membrane elements are arranged between the positive main electrode plate and the insulating net cages, between the negative main electrode plate and the insulating net cages and between the adjacent insulating net cages; the positive main electrode plate is used for connecting the positive v of apower supply; the negative main electrode plate is used for connecting with the negative electrode of the power supply; and water production pipes at one end of each flat ceramic membrane element areconnected with self-priming pumps. The sewage treatment device provided by the invention can remove organic pollutants and suspended solids at the same time, so that the device is simplified, and sewage treatment efficiency is improved.

Description

technical field [0001] The application belongs to the technical field of sewage treatment, and in particular relates to a sewage treatment device and a sewage treatment system based on electrochemical oxidation and ultrafiltration. Background technique [0002] In recent years, with the rapid development of economy and the rapid increase of population, the pollution of water bodies has become increasingly serious. Common pollutants in polluted water bodies (hereinafter referred to as sewage) include organic pollutants and suspended solids. [0003] There are two basic principles of electrochemical oxidation technology, one is that the pollutants directly undergo electrochemical reactions on the electrodes; the other is to use the strong oxidizing active substances produced on the electrode surface to cause the pollutants to undergo redox reactions. The three-dimensional electrode method is a new type of electrochemical oxidation technology. The inventors of the present appl...

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Problems solved by technology

The three-dimensional electrode method is a new type of electrochemical oxidation technology. The inventors of the present application discovered during the research and development process that the three-dimensional electrode method can effectively treat high-concentration organic sewage containing phenol, printing and dyeing, etc., but cannot treat suspended solids in sewage. effectively remove

The inventors of the present application discovered during the research and development process that ultrafiltration can effectively filter suspended solids in sewage, but cannot effectively remove dissolved organic pollutants in sewage

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