Equipment and method for integrally treating sludge and household garbage in town sewage treatment plant

Abstract

The invention relates to equipment and a method for integrally treating sludge and household garbage in a town sewage treatment plant, wherein the integrated treating equipment consist of a sludge bin and a garbage bin which are not mutually communicated; two sludge reaction chambers are formed in the sludge bin; the garbage bin is wrapped on the outer layer of the sludge bin; in the garbage bin,anaerobic composting is adopted at high temperature period to ensure the garbage composting effect, and gases generated by the anaerobic composting can be used for stirring in the sludge bin to improve the anaerobic digestion effect of sludge; aerobic composting can be adopted at low temperature period to ensure the composting effect; and in the anaerobic digestion process of the sludge bin, heatcan be taken out from the garbage bin to ensure the moderate temperature or high temperature condition required by sludge digestion to reduce the energy consumption in the sludge and garbage treatment process. Under the aerobic composting condition, when the fermenting temperature in the garbage bin is 35-40 DEG C, the temperature condition for mesophilic digestion in the sludge bin can be ensured, the treated sludge has good dehydration property and the organic content is obviously reduced.

Description

technical field [0001] The invention belongs to the technical field of sludge treatment. Background technique [0002] With the innovation of urban sewage treatment technology, the deepening of the treatment degree and the improvement of the treatment rate, the sludge production is also increasing. The sludge problem has become a major environmental problem affecting urban development. Therefore, it is particularly necessary to properly handle and dispose of sludge. At the same time, with the acceleration of urbanization, the output of domestic waste is also increasing year by year, and the organic matter content in garbage is also increasing with the improvement of people's living standards. Anaerobic composting (digestion) is treated as domestic waste (sludge stabilization) The process has the advantages of reducing the volume of garbage and sludge, killing pathogenic microorganisms, improving the performance of garbage and sludge, and generating biogas, so it has always ...

AI Technical Summary

Problems solved by technology

[0006] At present, there is no report on the integrated treatment of sewage treatment plant sludge and municipal solid waste. More research is to use certain biochemical reactors to separately treat sludge or municipal solid waste or to mix and ferment them.

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