Animal excrement harmless resource utilization intelligent treatment system and method

Abstract

The invention discloses an animal excrement harmless resource utilization intelligent treatment system and method. The system comprises a roller sieve filtering device, a fast mixing device, an anaerobic fermentation device, a marsh gas collecting device, a gas purification assembly, a gas storage device and a solid-liquid treatment assembly, wherein the roller sieve filtering device is used for removing impurities in animal excrement; the fast mixing device is used for mixing the screened animal excrement with stalks subjected to biological fermentation; the anaerobic fermentation device is used for performing anaerobic fermentation on the mixed materials; the marsh gas collecting device is used for collecting marsh gas generated in the anaerobic fermentation device; the gas purificationassembly is used for performing desulfurization, dewatering and decarburization treatment on the marsh gas collected by the marsh gas collecting device; the gas storage device is used for performing constant pressure storage on the gas purified by the gas purification assembly; the solid-liquid treatment assembly is used for separating biogas slurry and biogas residue after the fermentation, preparing the treated biogas slag into organic fertilizer, and preparing the treated biogas slurry into liquid fertilizer. The animal excrement harmless resource utilization intelligent treatment system and method have the advantages that multiple functions of excrement fermentation, marsh gas production, organic fertilizer preparation and the like are integrated; the technical process is shortened; the efficiency is greatly improved; meanwhile, a yield increase novel path is also developed for people in regions with developed breeding industry.

Description

technical field [0001] The invention relates to the field of livestock and poultry breeding manure treatment, in particular to an intelligent treatment system and method for harmless resource recycling of animal manure. Background technique [0002] At present, most of the feces and waste liquid produced by livestock and poultry breeding in rural areas in China are mostly processed through biogas technology, sewage treatment and biochemical treatment, but due to the influence of natural conditions, they still cause large pollution and high labor intensity. The mechanical treatment of feces produced by large-scale aquaculture has high processing costs and low waste utilization; and the above-mentioned methods and processes still have problems such as the spread of viruses and bacteria, air pollution, etc., consuming manpower, material resources, and financial resources. , It is also easy to cause farmland pollution and affect the normal life of surrounding residents. At the ...

AI Technical Summary

Problems solved by technology

However, the development of relevant technical devices at this stage is not perfect, and there are widespread problems of single energy conversion forms and low resource utilization.

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