Sewage treatment plant deodorizing device with pH buffer function

Abstract

The invention discloses a sewage treatment plant deodorizing device with a pH buffer function. The sewage treatment plant deodorizing device comprises a deodorizing tower and a supporting grating which is arranged in the deodorizing tower, wherein the side wall of the deodorizing tower is provided with an air inlet which is arranged below the supporting grating, the top end of the deodorizing tower is provided with an air outlet, oyster shell filler is stacked above the supporting grating, the oyster shell filler is mixed with a deodorizing and sterilizing agent, and a spraying device is arranged above the oyster shell filler. In the deodorizing device, the oyster shell filler is not only a carrier of the deodorizing and sterilizing agent in a biological filter tank, but also used as a pH buffer agent for stabilizing the pH range in the biological filter tank, so that the activity of the microorganism can be maintained, the harm of the acid substances on the biological filter tank can be reduced, and the odor gas can be high-efficiently and stably eliminated.

Description

technical field [0001] The invention relates to the technical field of waste gas treatment, in particular to a deodorizing device for a sewage treatment plant with a pH buffering function. Background technique [0002] The malodorous gas not only has a serious impact on the ecological environment, but also has great harm to human health. The malodorous gas can cause disorders and lesions in the central nervous system, causing chronic and acute diseases. At present, various malodorous gas treatment methods mainly change the material structure of the malodorous gas through physical, chemical, and biological effects, thereby eliminating the odor. Conventional malodorous gas treatment methods include combustion method, oxidation method, absorption method, adsorption method, neutralization method and biological method. [0003] Biological filter is a kind of biological deodorization method. The main principle of deodorization is to decompose and transform the waste odor molecule...

AI Technical Summary

Problems solved by technology

During the biological treatment of malodorous gas, chlorine-containing organic compounds and H 2 S will produce acidic substances such as hydrochloric acid and sulfuric acid, and the decomposition of organic matter will produce carbon dioxide. These acidic substances and carbon dioxide will cause the pH in the biofilter to drop, which not only affects the biochemical action of microorganisms, but also corrodes the packing bed and shortens the life of the biofilter. life

[0005] It can be seen that traditional organic fillers are easily corroded by acidic substances during the treatment of malodorous gases, which shortens the life of the biofilter and affects the effect of odor treatment; although traditional inorganic fillers can resist corrosion to a certain extent, they are It cannot provide the organic substances needed by microorganisms, and does not have the function of pH buffering and adjustment

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