An advanced oxidation pollution control technology and equipment

Abstract

The invention discloses an advanced oxidation pollution control technology. The method adopted by the technology is as follows: an electrolysis catalytic method is adopted to prepare hydroxyl radical, and the sewage / sludge is subjected to oxidation pollution control by using hydroxyl radical. The invention also discloses an oxidation pollution control device which realizes the method adopted by the technology. The device includes a housing, a UV emitter, an inlet, an outlet, an electrolysis reactor, an anode and a DC power supply, wherein the anode is cylindrical and mounted in the housing; the axis of the anode is collinear with the center line of the housing; the anode is a conductor and is made of titanium; the housing and the anode are both connected with the output end of the DC power supply, so that the housing forms a cathode; the cavity between the anode and the cathode forms a reaction chamber; the electrolysis reactor is positioned in the reaction chamber; the UV emitter is mounted on the housing and irradiates ultraviolet rays towards the middle part of the reaction chamber; the inlet and the outlet are both formed in the housing; the electrolysis reactor is a transparent insulating shell filled with a catalyst; the catalyst is activated carbon carrying titanic oxide; through holes are densely distributed on the transparent shell.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and is specifically an advanced oxidation pollution control technology and equipment. Background technique [0002] Modern industry, especially the chemical industry, produces a large amount of sewage and sludge every year. A considerable amount of these pollutants are directly discharged into the natural environment, seriously threatening ecological health and human survival. As society pays more and more attention to environmental protection issues, how to more effectively Treatment of sewage and sludge has become an important research topic. At present, the commonly used treatment methods for sewage are physical methods, biological methods and chemical methods. Among them, physical methods include gravity separation, filtration, evaporation crystallization and physical adjustment, etc., to remove floating matter, suspended matter and oil in sewage, and to separate waste water ...

AI Technical Summary

Problems solved by technology

At present, the commonly used treatment methods for sewage are physical methods, biological methods and chemical methods. Among them, physical methods include gravity separation, filtration, evaporation crystallization and physical adjustment, etc., to remove floating matter, suspended matter and oil in sewage, and to separate waste water Insoluble substances, but the chemical properties cannot be changed during the treatment process; the biological method uses the metabolic function of microorganisms to decompose and oxidize the organic matter in the dissolved or colloidal state in the sewage into stable inorganic substances, so that the sewage can be purified, and the commonly used ones are active Sludge method and biofilm method, the degree of treatment of biological method is higher than that of physical method; chemical method is a method of using chemical reaction to treat or recover dissolved or colloidal substances in sewage, which is mostly used in industrial wastewater, commonly used coagulation method, Neutralization method, redox method, ion exchange method, etc. The chemical treatment method has good treatment effect and high cost, and is mostly used for further treatment of effluent after biochemical treatment to improve the quality of effluent water

[0003] For the treatment of sludge, methods such as landfill, incineration, and agricultural use are often used. However, chemical sludge contains a large amount of chemical substances. Direct use of the above methods will pollute the environment and is expressly prohibited.

Chemical sludge generally uses methods such as microbial predation, thermal hydrolysis, and endogenous metabolism, but the general treatment cost is too high

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