Treatment method and recycling method of livestock and poultry breeding wastewater and biogas slurry

The invention relates to a treatment method and a recycling method of livestock and poultry breeding wastewater and biogas slurry. The treatment method comprises the steps of: A. preparation and storage of biogas slurry, i.e., treating livestock and poultry house wastewater by an anaerobic reaction system through a conventional approach and storing the treated wastewater in a biogas slurry tank; B. treatment of biogas slurry, i.e., conveying the biogas slurry from the biogas slurry tank into a biogas slurry adjusting tank to separate precipitation and/or remove suspended solids from the biogas slurry; and C. biological treatment of biogas slurry, i.e., discharging the biogas slurry which is treated in the biogas slurry adjusting tank and achieves standards, or treating the biogas slurry in another path by a mixed bacteria agent. The recycling method comprises the step of adding a reuse water disinfecting storage tank after the standardized discharge of biogas slurry, or at the back of a biogas slurry biological-treatment tank, connecting a branch for outputting to a by-product treatment tank. The treatment method and the recycling method have the advantages of combining a microbial agent with an aerobic treatment technology of wastewater, rapidly decomposing, decoloring and deodorizing pollutants, achieving the effects of standardized discharge, comprehensive utilization, energy conservation, discharge reduction and low cost, and being easy to popularize and apply.