High temperature organic exhaust gas integration biological treatment device and process

Abstract

The invention relates to the technology field of high-temperature organic waste gas treatment for restaurant garbage, and provides an integrated biological treatment device for high-temperature organic waste gas and a method. The treatment device mainly comprises a condensing unit and a biological deodorization device, wherein, the condensing unit comprises a pipeline, a blower, a condenser, and a steam separator; the biological deodorization device in sequence comprises a gas distribution layer, an oil selecting layer, the gas distribution layer, an inactive filler layer, the gas distribution layer, a biological filler layer, and a PP vegetation layer from bottom to top. The method used for processing comprises the following steps: the high-temperature organic waste gas of 90 to 120 DEG C is processed through concreting and steam-water separation through the condensing unit so as to lead the temperature thereof to reach 25 DEG C to 40 DEG C; part of waste gas such as water-soluble hydrogen sulfide, ammonia gas, etc. is removed; then the waste gas is removed successively through the microbial adsorption, absorption and degradation action in each filler layer, so that the waste gas is transformed into the matters such as non-toxic and harmless CO2, H2O, cytoplasm, reductive S, resolvable nitrate salts, etc.

Description

technical field [0001] The invention relates to a waste gas treatment technology, in particular to a device and method for treating high-temperature organic waste gas from kitchen waste. technical background [0002] Food waste is a kind of organic waste with high moisture content and rich organic content. In order to reduce the amount of food waste, make it harmless and recycle, it is necessary to dehydrate and dry the food waste first, and then remove glass and stones. , plastic and other debris, so that the organic matter in the kitchen waste can be further processed into fertilizer or feed. The drying process of food waste is carried out in a closed dryer. In order to ensure the drying efficiency, the drying temperature must be controlled between 90°C and 120°C. At this temperature, the water vaporizes into water vapor. The decomposition of some volatile organic substances will release acetic acid, ethyl sulfide, ethyl mercaptan, hydrogen sulfide, styrene and other subs...

AI Technical Summary

Problems solved by technology

[0005] The activated carbon adsorption method is to use the activated carbon carrier to adsorb the odorous substances with high temperature and high humidity. The activated carbon is easy to absorb and saturate. Regeneration or replacement of the activated carbon will cost a lot to remove the organic waste gas.

[0006] If high-temperature organic waste gas from food waste directly enters traditional biological deodorization devices such as biofilters, biological trickling filters, and biological scrubbers, it will not only cause thermal inactivation of microbial degradation bacteria, but also oil in the organic waste gas will block the deodorization device. filter material, resulting in increased air intake resistance, the entire system cannot operate normally

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