Equipped device for enhanced hydrolysis and anaerobic digestion of urban living organic garbage for producing biological fuel gas

Abstract

The invention discloses an equipped device for enhanced hydrolysis and anaerobic digestion of urban living organic garbage for producing biological fuel gas, comprising a water storage tank, a raw material adjusting tank, a temperature-increasing hydrolysis tank, a medium-temperature anaerobic digestion reactor, an ultra-high temperature enhanced hydrolysis reactor, a high-temperature anaerobic digestion reactor, a sedimentation tank and a digestion liquid storage tank which are sequentially communicated, wherein a digestion liquid outlet at the bottom of the digestion liquid storage tank is communicated with a digestion liquid inlet at the top of the raw material adjusting tank through a conveying pipeline; a sludge discharge port at the bottom of the sedimentation tank is connected to a raw material inlet of a solid-liquid separator, and the digestion liquid outlet of the solid-liquid separator is communicated with the digestion liquid inlet at the top of the digestion liquid storage tank; the equipped device further comprises a digestion residue storage tank for receiving digestion residue after solid-liquid separation by the solid-liquid separator; and a crushing machine is further equipped on the raw material adjusting tank. The equipped device has the advantages of low cost, easy maintenance, stable and reliable performances, high removal rate of organic matters, high gas production rate of raw materials and thorough removal of pathogen in the garbage.

Description

technical field [0001] The present invention relates to a kind of supporting equipment for organic waste treatment, more specifically, the invention relates to a kind of supporting equipment for generating biogas (mainly methane) through enhanced hydrolysis and anaerobic digestion of municipal domestic organic waste. Background technique [0002] With the acceleration of the urbanization process and the improvement of people's living standards, the generation of urban domestic waste is also increasing. In 2007, the national urban domestic waste removal volume was 150 million tons. For a large amount of municipal solid waste, if it is not handled properly, it will cause serious harm to the natural and social environment, such as encroaching on land, polluting water bodies and the atmosphere, endangering agricultural ecosystems, affecting environmental sanitation, spreading diseases, and even causing explosion accidents, etc. Various social problems will occur concurrently, re...

AI Technical Summary

Problems solved by technology

Compared with mesophilic anaerobic digestion, high-temperature anaerobic digestion can greatly improve the removal rate of pathogenic bacteria in urban domestic organic waste, but it cannot completely kill pathogenic bacteria, which limits the extensive use of organic waste anaerobic digestion residues as fertilizers

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