Sludge composting and fermenting integrated treatment device

Abstract

The invention discloses a sludge composting and fermenting integrated treatment device used in the sludge composting field. The device comprises a fermentation tank and a deodorization component, wherein the fermentation tank is provided with a feeding hole and an exhausting hole, a sealing part is detachably arranged at the feeding hole, the exhausting hole is formed in the top of the fermentation tank and is connected with the deodorization component; a stirring component and an air distribution component are arranged in the fermentation tank, and the air distribution component is located at the bottom; an outer layer and an inner layer are arranged on the tank wall of the fermentation tank, and the space between the outer layer and the inner layer is filled with thermal insulation materials. By arranging the thermal insulation materials at the tank wall of the fermentation tank, the temperature of a compost body is conveniently controlled, and the compost body can be rapidly composted, so that the composting time is shortened, and the composting efficiency is improved; particularly, the composting temperature is rapidly increased through organic matter composting when the environmental temperature is relatively low, so that a proper growth temperature can be provided for microorganisms, the microbial activity can be maintained, organic matters can be adequately decomposed, the conversion rate of nitrate nitrogen in the sludge can be effectively increased, and the problems of an existing sludge composting that the temperature increase is slow, the temperature of the compositing body is not high enough, and the compositing cycle is long are solved.

Description

technical field [0001] The invention relates to the field of sludge treatment, in particular to an integrated treatment device for sludge composting and fermentation. Background technique [0002] Sewage treatment plants have a large amount of surplus sludge that needs to be treated and disposed of every day. At present, there are many treatment and disposal methods. The commonly used treatment methods include sanitary landfill, drying, sludge incineration, etc. The comprehensive utilization treatment technology includes sludge aerobic composting , Anaerobic digestion of sludge, etc. At present, the commonly used aerobic composting is basically large-scale strip-stack composting, which adopts turning and throwing machines and mechanical ventilation. This method has a large processing capacity, but has strict requirements on the site, and produces a large amount of waste gas that pollutes the surrounding environment and forms secondary pollution. [0003] There are few prac...

AI Technical Summary

Problems solved by technology

This method has a large processing capacity, but has strict requirements on the site, and produces a large amount of waste gas that pollutes the surrounding environment and forms secondary pollution.

[0003] There are few practical sludge composting fermentation tanks on the market, and more laboratories use them, but they are relatively simple, and there is still a certain gap with practical applications

Moreover, the composting fermentation tank does not match the corresponding supporting equipment, and the waste gas generated is directly discharged into the natural air, which is not conducive to the treatment and disposal of sludge generated by small sewage treatment plants, integrated sewage treatment facilities in urban communities, and small rural sewage treatment facilities. The popularization and application of sludge composting fermenter has relatively large limitations

[0004] In addition, the current fermentation tanks are generally made of metal materials, and their heat conduction is very fast, corresponding to the temperature loss of the fermentation tank is too fast, the temperature of the pile body cannot meet the requirements of ideal high temperature, and it is difficult for compost products to mature

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