Efficient waste gas washing tower

Abstract

The invention provides an efficient waste gas washing tower, which comprises three independent deodorizing devices, wherein a first-grade deodorizing device, a second-grade deodorizing device and a third-grade deodorizing device are arranged from bottom to top; an air outlet is positioned above the third-grade deodorizing device; and a fan is connected to the first-grade deodorizing device through a pipeline. The efficient waste gas washing tower has the advantages and beneficial effects that: direct and indirect oxidation reactions are performed through electrolysis, so that acid, alkaline and neutral malodorous substances are oxidized completely or to the maximum extent. A layer separation concept is introduced into a single washing tower, malodorous components of different types can be removed simultaneously, running at each section is independent and is not interfered mutually, the structure is compact, and the sewage treatment pressure can be lowered; the running cost is low; different combination ways can be selected according to the types of pollution substances; particularly, high-concentration malodorous substances are treated effectively; and selective running can be performed according to the types of malodorous substances and the variation of concentration, and running parameters can be changed at any time.

Description

technical field [0001] The invention belongs to the technical field of waste gas absorption and treatment devices in waste water treatment, and in particular relates to a high-efficiency waste gas washing tower. Background technique [0002] The scrubber that treats exhaust gas by water absorption is a physical absorption method that uses the principle of water solubility of odorous substances. According to the physical and chemical characteristics of the target odorous substance, its applicable field is limited; the scrubber that uses spraying chemicals to deodorize is a Using the principle of chemical absorption, if there is a single type of odorous substances, the treatment effect is ideal, but under the condition of diverse types of odorous substances, multiple series of treatments are required to meet the discharge requirements, so the structure of the washing tower is relatively complicated; the use of chemicals The method of oxidation is to use sodium hypochlorite to ...

AI Technical Summary

Problems solved by technology

[0002] The scrubber that treats exhaust gas by water absorption is a physical absorption method that uses the principle of water solubility of odorous substances. According to the physical and chemical characteristics of the target odorous substance, its applicable field is limited; the scrubber that uses spraying chemicals to deodorize is a Using the principle of chemical absorption, if there is a single type of odorous substances, the treatment effect is ideal, but under the condition of diverse types of odorous substances, multiple series of treatments are required to meet the discharge requirements, so the structure of the washing tower is relatively complicated; the use of chemicals The oxidation method is to use sodium hypochlorite to process the odorous substances through oxidation, neutralization and absorption. If excessive sodium hypochlorite is added, new odors caused by unreacted sodium hypochlorite will be produced.

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