Sludge aerobic fermentation system

Abstract

The invention discloses a sludge aerobic fermentation system. The sludge aerobic fermentation system comprises a feeding device, a fermentation tank, an aeration device and a discharging device; the feeding device conveys sludge to the upper end of the fermentation tank and feeds the sludge into the fermentation tank for fermentation, and after the sludge is fermented by oxygen provided by the aeration device, the fermented sludge is conveyed out of the fermentation tank. The aeration device comprises an air inlet pipe and a plurality of aeration units which are flexibly connected with the airinlet pipes, and the aeration units are distributed in the fermentation tank. The invention provides the sludge aerobic fermentation system which is convenient to install and transport and can effectively improve aerobic fermentation efficiency.

Description

technical field [0001] The invention belongs to the technical field of sludge disposal, and in particular relates to a sludge aerobic fermentation system. Background technique [0002] Sludge is rich in organic matter, nitrogen, phosphorus, potassium and other nutrients that cause water pollution. It also contains a large number of pathogenic microorganisms, which is easy to rot and smell. If it is not disposed of properly, it will cause very serious environmental pollution and ecological damage. A huge waste of resources. At present, only about 10-20% of sludge in my country has been safely and harmlessly disposed, and a large amount of sludge has not been effectively disposed of. [0003] At present, the mainstream methods of sludge treatment and disposal at home and abroad are landfill, dry incineration and land utilization, and anaerobic digestion technology and aerobic fermentation technology are mainly used in the treatment process. Sludge aerobic fermentation tech...

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Problems solved by technology

[0006] However, the existing sludge aerobic fermentation system is to mix organic matter (sludge), water and bacteria (microorganisms) in the fermentation bin, and oxygen is introduced from the bottom of the fermentation bin to oxidize the organic matter. The function needs to be in an oxygen environment. Therefore, the accumulation height of the sludge should not be too high. When the height is too high, due to the weight of the sludge, the lower part of the pile will be compacted, and normal ventilation cannot be performed, which cannot provide a good environment for the bacteria. Oxygen environment, aerobic fermentation cannot continue, affecting the fermentation effect

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