High-concentration liquid multi-component raw material anaerobic bacterium-rich fermentation apparatus and technology thereof

Abstract

The invention discloses a high-concentration liquid multi-component raw material anaerobic bacterium-rich fermentation apparatus and a technology thereof, and belongs to the biotechnical field. The apparatus is composed of an anaerobic bacterium enrichment tank and an anaerobic reactor. The anaerobic bacterium enrichment tank is divided into a complete mixing zone, a strain enrichment zone and a settling zone from bottom to top, wherein the complete mixing zone is provided with a cyclone water distributor and a lateral stirrer, the strain enrichment zone is provided with a filler, and the settling zone is provided with a three-phase separator and a sludge discharging tube. The filler can effectively improve the concentration of flora as a microbial carrier; the lateral stirrer induces water flow disturbance, and allows excess microbes attached on the filler to be washed down and to be fully mixed with a fermentation raw material in order to promote the degradation of the fermentation raw material; the three-phase separator is used to separate biogas, a fermentation liquid and granular sludge; and the sludge discharging tube is used for conveying high concentration anaerobic bacteria to the anaerobic reactor. The anaerobic bacterium enrichment tank is constructed in the invention in order to improve the concentration and activity of the florae, widen the adaptability of the fermentation raw material, promote the degradation of the fermentation raw material and increase the volumetric organic load and the volumetric gas productivity.

Description

technical field [0001] The patent of the present invention belongs to the field of biotechnology, and relates to a high-concentration liquid multi-component raw material-rich anaerobic bacteria fermentation device and its technology. The condition of high-concentration liquid raw material realizes the enrichment of anaerobic fermentation strains, improves anaerobic digestion efficiency and volumetric gas production rate. Background technique [0002] With the rapid development of my country's social economy, organic waste such as agricultural organic waste and urban organic waste is increasing, which has brought about a series of environmental and ecological problems; The model has gradually changed from a decentralized model to a centralized model. The demand for energy for rural life is gradually increasing, and the demand for high-grade energy is increasing. How to effectively deal with and comprehensively utilize the increasing garbage and waste in cities and villages to...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of low concentration of liquid material, single raw material, and low volumetric gas production rate in the current anaerobic fermentation process. The enrichment tank adds highly active and high-concentration anaerobic bacteria to the anaerobic reactor to broaden the adaptability of the fermentation raw materials, promote the degradation of the fermentation raw materials, and increase the volumetric organic load and volumetric gas production rate of the anaerobic reactor

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