System and method for treating biogas produced by co-fermentation of livestock and poultry breeding wastes

Abstract

The invention discloses a system for treating biogas produced by co-fermentation of livestock and poultry breeding wastes. The system comprises a livestock and poultry manure pretreatment device, a harmless treatment device and an anaerobic fermentation device, wherein the livestock and poultry manure pretreatment device and the harmless treatment device are respectively connected with the anaerobic fermentation device through pipelines; the livestock and poultry manure pretreatment device is used for pretreating livestock and poultry manure to be treated before fermentation, and the pretreated manure is output into the anaerobic fermentation device; and the harmless treatment device is used for performing high-temperature sterilization and grease separation on livestock and poultry carcasses and / or slaughter wastes to be treated to remove grease, and the grease-removed materials are output into the anaerobic fermentation device. The invention also discloses a method for treating the biogas produced by the co-fermentation of the livestock and poultry breeding wastes According to the system and method for biogas produced by co-fermentation of livestock and poultry breeding wastes, co-fermentation of dead animals / slaughter wastes and livestock and poultry manure can be realized, so that a biogas mode is better applied to treatment of the livestock and poultry breeding wastes.

Description

technical field [0001] The invention belongs to the technical field of harmless treatment of livestock and poultry breeding and processing waste, and specifically relates to a system and method for co-fermenting livestock and poultry breeding waste to produce biogas. Background technique [0002] In large-scale livestock and poultry farms, a large amount of waste is produced every day, such as manure, livestock and poultry carcasses, and slaughter waste. The harmless treatment technology for waste is one of the key factors to ensure the safety of biological epidemic prevention in livestock and poultry breeding and supply healthy meat products. Among them, the harmless treatment method of using manure to generate biogas, as one of the important ways of resource utilization of livestock and poultry farming waste, has developed relatively maturely. However, the comprehensive development and utilization of dead animals and slaughter waste is one of the key issues that need to b...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the inhibition of fermentation gas production, long fermentation cycle, low efficiency of fermentation system and even paralysis of the fermentation system in the biogasification process of livestock and poultry farming waste (mainly livestock and poultry carcasses, slaughtering waste and livestock manure), the fermentation system Poor stability, which in turn leads to the technical problem that the application of biogasification in the treatment of livestock and poultry breeding waste is limited. The invention provides a system and method for co-fermenting livestock and poultry breeding waste to produce biogas

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