Continuous clean deodorizing method for activated sludge fermentation gas

Abstract

The invention discloses a continuous clean deodorizing method for activated sludge fermentation gas, which pumps gas generated by the fermentation of the activated sludge into a liquid medicine washing tower by an exhaust fan, by using the liquid medicine for spray washing, emptying is realized after fermentation smell is removed, and the liquid medicine is circularly used by a pump, thus solvingthe problem that the activated sludge fermentation gas needs the continuous clean deodorizing, having the advantages of simple equipment, easy operation, and continuous, fast and clean removing odor generated by the fermentation of the activated sludge and the like, and being widely applied to deodorizing of the activated sludge.

Description

technical field [0001] The invention relates to a method for deodorizing fermented gas, in particular to a method for continuously cleaning and deodorizing activated sludge fermented gas. Background technique [0002] At present, my country's sewage treatment plants are generally built throughout the country. The by-products of sewage plants, the amount of activated sludge has increased sharply, reaching tens of millions of tons per year in the country. The harmlessness and resource utilization of activated sludge has become an urgent need. Major issues to be solved; at present, the disposal of activated sludge is mainly landfill, which is prone to secondary pollution, followed by incineration or agricultural use. A better solution should be fermentation in solar sheds, dehydration and drying at the same time, so that the water content of activated sludge Reduce from 75 to 82% to about 20%, and then go to incineration or agricultural use or landfill, so as to achieve the goals...

AI Technical Summary

Problems solved by technology

The fermentation of activated sludge is a key link. High-temperature fermentation can also achieve the purpose of sterilization and disinfection. However, during the process of fermentation and sludge stacking, unpleasant gases will be produced, especially in anaerobic fermentation when the water content is high. The smell is even worse; at present, the deodorization of fermented gas is still in the initial test stage, and there is no simple and mature process for continuous and clean deodorization. Therefore, the simple, continuous and clean deodorization of activated sludge fermented gas is an active One of the prerequisites for sludge harmlessness

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