Efficient treatment system and treatment method for organic waste anaerobic digestion

Abstract

The invention discloses an efficient treatment system and treatment method for organic waste anaerobic digestion. A discharge port of an anaerobic reactor is connected with a feed port of a pyrolysis reactor, a biochar discharge port of the pyrolysis reactor is connected with an inlet of a mixer, an outlet of the mixer is connected with a feed port of the anaerobic reactor, a gas outlet of the pyrolysis reactor is connected with a gas holder inlet, a gas holder outlet is connected with one end of a second one-way valve, the other end of the second one-way valve is connected with one end of a first one-way valve and a gas inlet of a gas aspirator, the other end of the first one-way valve communicates with the liquid level upper side of the anaerobic reactor, one end of a circulating pump is connected below the liquid level of the anaerobic reactor, the other end of the circulating pump is connected with a liquid inlet of the gas aspirator, and an outlet of the gas aspirator is connected with the anaerobic reactor. The efficient treatment system and treatment method can effectively improve the anaerobic fermentation efficiency, increase the biogas yield and reduce the sulfur content of biogas.

Description

technical field [0001] The invention relates to an anaerobic digestion treatment system and a treatment method thereof, in particular to an organic waste anaerobic digestion high-efficiency treatment system and a treatment method thereof, belonging to the field of garbage treatment. Background technique [0002] With the rapid development of the catering industry and the advancement of waste classification, the proportion and output of organic waste have increased sharply. At present, organic waste accounts for as high as 30%-50% of my country's municipal solid waste, and the annual production has exceeded 100 million tons, seriously affecting the urban living environment. Anaerobic digestion of organic waste to generate biogas not only realizes the resource utilization of organic waste and reduces environmental pollution, but also has great significance for solving the problem of energy shortage. [0003] However, anaerobic digestion will produce a large amount of residual...

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Problems solved by technology

[0003] However, anaerobic digestion will produce a large amount of residual biogas residues. In addition to being rich in nutrients, biogas residues also contain harmful substances such as pathogenic microorganisms, which will cause secondary pollution of soil and water after entering the environment.

At the same time, the sulfur content in the biogas produced by anaerobic digestion is high, and it needs to go through a complicated biogas purification process

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