Original pig-raising biogas slurry utilization method

Abstract

The invention belongs to the technical field of pig raising and discloses an original pig-raising biogas slurry utilization method. The method includes pig feed processing and biogas treatment and utilization and specifically includes: pig manure and urine from a pig house are directly discharged into an underground ditch, the pig manure and urine are collected and enter an underground biogas digester, and harmless treatment is performed; the biogas slurry of biogas fermentation is pumped up after filtering and settling and used for cleaning the pig house, and water recycling is achieved. The method has the advantages that the method is a local green pig-raising industrial project which is ecological and environmentally friendly, the use of large-scale machinery is avoided, pigs are raised in an artificial manner, feed comes from local materials and is fermented, the pigs grow in a simulated ecological real environment, chemical additives are not used, green feed is used, the pig manure is ecologically treated, the liquid manure is recycled after biogas fermentation, zero emission is achieved, and emission such as wastewater, waste gas and waste residues cannot be generated; water resources are saved, energy consumption is reduced, ambient ecological environments can be improved favorably, and the method is high in social and pubic benefits.

Description

Technical field [0001] The invention belongs to the technical field of pig raising, and in particular relates to a method for utilizing the original ecological pig raising biogas slurry. Background technique [0002] At present, the large-scale compound feed and the industrialization of pig raising are synonymous with the modern industrialized pig raising industry. The "local method" (traditional method) of pig raising is gradually marginalized under the background of intensive development. Compound feed, modern pens, and hybrid breeding pigs have continuously improved the scale and output of live pigs and economic benefits, but they have also brought a series of problems, such as feed additives, hormones, meat safety, improper handling of pig manure, and environmental pollution. The cost of pens, feed, management, etc. is high, the pig disease is difficult to prevent and control, the scale of breeding changes greatly, the price of meat fluctuates, and the economic benefits of th...

AI Technical Summary

Problems solved by technology

[0003] In summary, the existing problems in the prior art are: the existing pig raising has feed additives, hormones, meat safety, large amount of water for breeding, improper disposal of pig manure to pollute the environment, high cost of housing, feed, management, etc. It is difficult to prevent and control the epidemic, the scale of breeding changes greatly, the price of meat fluctuates greatly, and the economic benefits of the industry are unstable

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