Production system for conducting comprehensive treatment and utilization on waste straw and livestock feces

Abstract

The invention discloses a production system for conducting comprehensive treatment and utilization on waste straw and livestock feces. According to the system, a waste biomass straw treating device and a livestock feces treating device are combined, and are comprehensively used, wherein the waste biomass straw treating device conducts pyrolysis and carbonization treatment on the waste biomass straw to obtain biochar, wood tar, wood vinegar and associated gas; the livestock feces treating device separates solid fecal residues and liquid feces from the livestock feces; the solid fecal residues enter a fermentation and fertilizer production device, the biochar is added into the fermentation and fertilizer production device, and an associated gas heat source is connected for drying to preparecarbon-based bio-organic fertilizer; the liquid feces are subjected to biochar adsorption, solid is returned to the fermentation and fertilizer production device, liquid is connected with hot water heated by the associated gas, the liquid enters a sewage biochemical treatment device, and tail water which reaches the standard is discharged. The system conducts efficient resource utilization on thelivestock feces, and efficiently treats the biomass straw, so that the overall treatment cost is reduced, double economic benefits are generated, the waste straw and the livestock feces are recycled,and the ecological environment is improved.

Description

technical field [0001] The invention belongs to the field of organic fertilizer treatment, and relates to the comprehensive utilization and systematic treatment of rural waste resources, in particular to a production system for the comprehensive treatment and utilization of waste straw and livestock and poultry manure. Background technique [0002] At present, the scale of livestock and poultry breeding represented by pig breeding in my country is constantly expanding and concentrating. Due to the large volume and concentration of livestock and poultry manure, it has become an important source of environmental pollution. The existing treatment methods of livestock and poultry manure are no longer suitable for the existing production mode of large-scale industrialized centralized breeding. [0003] The existing treatment methods of livestock and poultry manure are generally divided into the following two types: one is the resource utilization mode of anaerobic fermentation to...

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Problems solved by technology

[0008] The problem to be solved by the present invention is that the volume of existing livestock and poultry manure is huge and concentrated, the treatment method is not suitable for ecological environment protection, and the waste resources of crop straw biomass have not been rationally utilized. In the production system of comprehensive treatment and utilization of sewage, the straw carbonization technology of comprehensive utilization of straw is introduced in the treatment process of livestock and poultry manure, so that it can not only efficiently utilize livestock and poultry manure as a resource, but also efficiently process waste biomass straw. The combination of the two reduces the cost of finishing and processing, and produces double economic benefits. At the same time, the recycling and reuse of the two can improve the ecological environment

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