Efficient two-phase anaerobic fermentation device

Abstract

The invention discloses an efficient two-phase anaerobic fermentation device. The efficient two-phase anaerobic fermentation device comprises a hydrolysis acid production reactor, a high-temperature hydrolysis device and at least one methanogenesis reactor, wherein a bottom percolate storage chamber of the hydrolysis acid production reactor is connected with the bottom of the methanogenesis reactor; the lower part of the hydrolysis acid production reactor is provided with a cavity stainless cone-shaped bracket with holes; the bottom of the cone-shaped bracket is connected with the high-temperature hydrolysis device; the methanogenesis reactor is provided with an upper discharge hole and a lower discharge hole; the upper discharge hole and a feed inlet form a self-circulation pipeline; the lower discharge hole of the hydrolysis acid production reactor is connected with a rotary sprayer; the high-temperature hydrolysis device is used for receiving large particle solid separated by the cone-shaped bracket; and solid-liquid separation is carried out by a biogas residue press filter at the outlet. The device is simple in manufacturing procedure, reasonable in structure, easy in maintenance, high in fermentation efficiency and stable and reliable in performance, is suitable for anaerobic digestion of organic wastes, and meets the large-scale production requirement.

Description

technical field [0001] The invention relates to an organic solid waste treatment device, in particular to a high-efficiency two-phase anaerobic fermentation device, which is suitable for processing urban domestic waste, kitchen waste, livestock and poultry manure, etc. The field of anaerobic fermentation of organic waste to produce biogas. Background technique [0002] Organic solid waste (including municipal solid waste, kitchen waste, livestock and poultry manure, etc.) is a major problem in environmental governance. Anaerobic fermentation treatment can not only eliminate the pollution of waste to the environment, but also generate biogas, which is an effective way to realize the harmlessness, reduction and resource utilization of solid organic waste. Traditional single-phase batch anaerobic fermentation is mainly used to treat liquid organic matter, and its liquid surface is easy to gather organic scum and crust, and the whole process will generate a large amount of wast...

AI Technical Summary

Problems solved by technology

However, the degradation rate of substrates in existing two-phase fermentation devices is still not high, especially for organic wastes containing more difficult-to-hydrolyze components, which also limits the further improvement of biogas production

In addition, the existing material circulation mode between the acid-producing phase reactor and the methanogenic phase reactor will bring some bacterial species into an environment that is not suitable for their own survival, resulting in a reduction in the degree of phase separation in the reactor and a decline in the bacterial population. drain

Images