Deodorizing device and deodorizing method of sludge storage pool

Abstract

The invention discloses a deodorizing device and a deodorizing method of a sludge storage pool. The deodorizing device comprises a stirrer, a pool cover, a high-energy ion deodorizing device which is communicated with the sludge storage pool through a first pipeline and a primary foul gas concentration detection device which is arranged on the first pipeline; the stirrer comprises blades, a stirring shaft and a drive mechanism, wherein each blade is provided with a plurality of aeration holes, the stirring shaft is provided with a gas inlet passage which is communicated with each aeration hole, and the stirring shaft penetrates through the pool cover; the pool cover is provided with a stirring shaft installation hole and a foul gas discharging opening, the gas inlet end of the gas inlet passage is connected with the foul gas discharging opening, and the pool cover and the sludge storage pool form a closed space. The deodorizing method comprises the following steps: step A, enabling the sludge storage pool to stay at a closed state; step B, stirring the sludge in the pool by utilizing the stirring device, and conveying air into the pool through the stirring blades; step C, extracting the foul gas by utilizing the high-energy ion deodorizing device, and generating high-energy ions to decompose the foul gas. The deodorizing device and deodorizing method are specially used for deodorizing the sludge storage pool of a sewage treatment factory; moreover, the deodorizing effect is good, the stable emission on standard can be realized, and the environmental pollution can be avoided.

Description

technical field [0001] The invention relates to a device and method for removing malodorous gas, in particular to a device and method for removing malodorous gas in a sludge storage tank in a sewage treatment plant. Background technique [0002] Our country has taken the source of odor from urban sewage treatment plants as a main evaluation object, and has taken various measures to prevent the spread of odor. In the newly released "Pollutant Discharge Standards for Urban Sewage Treatment Plants", the NH 3 、H 2 Clear indicator requirements are given for the maximum allowable concentration of substances such as S, odor concentration, and methane discharge at the factory boundary. With the improvement of domestic sewage treatment rate, the construction of deodorization equipment has also been put on the agenda of improving infrastructure construction in various places. However, due to the complex composition of the diffuse source odor in the sewage system, and most of them a...

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Problems solved by technology

Due to the limited site conditions of sewage treatment plants, methods that occupy a large area such as biological soil method and biological filtration method have certain limitations in application; atmospheric dilution method, adsorption method, combustion treatment method, wet chemical absorption method, ozone oxidation The method is not effective in treating hydrogen sulfide, ammonia, and mercaptans, and the malodorous gases produced by sewage treatment plants mainly include hydrogen sulfide, ammonia, and mercaptans. If the odorous gases cannot be completely removed, the discharge will pollute the environment

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