A sewage treatment device

Abstract

The invention belongs to the technical field of water treatment and relates to a sewage treatment device. A sewage treatment device, comprising a hydraulic cavitation assisted discharge plasma generator, the hydraulic cavitation assisted discharge plasma generator comprises a casing, the casing is a pipe body, and the casing is provided with a cavitation generator and A ground layer, a discharge cavity is formed between the cavitation generator and the ground layer; an insulating structure is provided between the cavitation generator, the ground layer and the shell. The invention does not need to add chemical raw materials, and can be realized only by electric energy and hydraulic equipment with a special geometric structure, and there is no harmful by-product, so as to avoid secondary pollution to the water body.

Description

Technical field [0001] The present invention belongs to the field of water treatment, and is related to a sewage treatment device. Background technique [0002] At present, water pollution is more pollution, and the wastewater discharge of industrial and agricultural production, urban life sewage emissions and garbage filling area leakage leakage is currently caused by several major factors in water pollution. Although a considerable number of enterprises and cities have been equipped with a sewage treatment plant, there is still a serious problem with short sewage treatment capacity. Continuous emissions without effective treatment will cause the contaminant concentration to maintain a peak, and even continuously. This phenomenon will bring a more harsh impact on the prematured water security issues that have already been at jeopardy. In addition, the advancement of science and technology has brought new pollutants, such as medicines and personal care products, antibiotics, anti...

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Problems solved by technology

[0003] The advanced oxidation process (Advanced Oxidation Process, referred to as AOP) is a new type of sewage treatment technology. Although the known advanced oxidation technology has achieved certain results, there are still limitations that cannot be broken through: the Fenton (Fenton) process will produce a large amount of Iron sludge that needs secondary treatment, and the dosage of hydrogen peroxide and the pH value of sewage need to be strictly controlled; the ozone method often requires a huge bubble tower or aeration tank to complete the process of contacting ozone with water

However, the photocatalytic method, which has been widely studied in recent years, faces problems such as high cost of photosensitive materials, the generation of hydroxyl groups is limited to the surface of the catalytic material, and it is difficult for light to penetrate turbid sewage.

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