Aerobic fermentation waste gas biotreatment method

Abstract

The invention discloses an aerobic fermentation waste gas biotreatment method. The aerobic fermentation waste gas biotreatment method comprises the following steps of (a) inletting aerobic fermentation waste gas from an aerobic fermentation tank into an air exchanger for heat exchange and then into a cooling tower for being spray-cooled by spraying liquid; (b) spraying absorbing liquid onto the upper portion of a biological deodorization tower to perform spray absorption and biological absorption on the aerobic fermentation waste gas and then discharging the aerobic fermentation waste gas fromthe top of the biological deodorization tower; (c) overflowing and laying the waste liquor produced during spray absorption, taking overflowed liquor as the absorbing solution of the biological deodorization tower and returning the overflowed and layered solid-liquid mixture to a biogas generating system. According to the aerobic fermentation waste gas biotreatment method, liquid with much solidcontent which is obtained through cooling and biological deodorization by a layering filter is layered through separating plates, and clear liquid is pumped to the top of the biological deodorizationtower by a deodorization tower circulating pump for spraying as nutrient substance for biological growth. The aerobic fermentation waste gas biotreatment method is simple in structure, biogas liquid produced during aerobic fermentation is applied to treating waste gas produced during aerobic fermentation, and the processed waste gas is discharged when meeting the standards, so that energy preservation and environmental protection can be achieved.

Description

technical field [0001] The invention relates to the technical field of aerobic fermentation, in particular to a treatment method for aerobic fermentation waste gas. Background technique [0002] With the continuous progress of society, the content of organic matter in municipal solid waste continues to increase, and the amount of waste is increasing year by year. How to effectively deal with these domestic wastes is an urgent problem to be solved. At present, the commonly used method is landfill disposal, which not only consumes a lot of manpower and material resources, but also has problems such as occupying land. Composting fermentation is a good solution. Using microbial fermentation to degrade urban organic solid waste and using compost products as fertilizers can solve environmental problems on the one hand and generate economic benefits on the other. [0003] Solid aerobic composting is a process in which aerobic bacteria absorb, oxidize and decompose waste under the ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a biological treatment method for aerobic fermentation waste gas in order to solve the problem of environmental pollution caused by waste gas produced in the solid aerobic fermentation process due to poor treatment effect

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