The invention discloses a treatment method of zero
pollution of waste of a pig farm, which aims at carrying out treatment of decontamination, reduction and recycling to waste and residues of the pigs and producing refined organic fertilizers with convenient application and market competitiveness by the
processing of
fermentation, stabilization, crushing and screening and the like. The treatment method comprises the following steps: collecting
urine of pigs into a
methane tank for anaerobic
fermentation, flowing into a soaking tank, absorbing with stalk
powder, transferring into an acidification tank for acidification, carrying out stirring, conditioning, dispensing, primary
fermentation, secondary fermentation, stabilization, crushing and screening to the obtained mixture with waste of the pigs in the collecting tank, and
processing the fine materials into refined organic fertilizers; coarse materials is returned to the soaking tank, mixed with the stalk
powder to absorb the fine materials,
processing the fine materials and producing refined organic fertilizers; the
placenta for foaling of sows in the farm and pig carcasses with unexplained death are put into a
methane incinerator for
incineration on the day; the
smoke enters a ventilating bin at the bottom part of a stabilizing bin and is exhausted after being filtered by organic fertilizers; and the residues are delivered into a fermentation
tower and is processed into the refined organic fertilizers.