PORK FARM Russian patent published in 1998 - IPC

FIELD: waste disposal. SUBSTANCE: invention is intended to be used in utilization of pork farm drains to form biogas and biofertilizers. Pork farm bioreactor contains casing with partitions forming acid, neutral, alkaline, and methane fermentation chambers provided with mixing pumps, methane fermentation chamber being connected with bell-type biogas collector. Bioreactor casing, along its longitudinal axis on the side of its side surface, is executed in the form of box with flap walls of cavity of solid-phase fermenter located in the lower part of box and provided with perforated channel connected to pumps forcing air from pork farm room and perforated branches in middle part of fermenter. Upper part of box communicates with methane fermentation chamber through pump supplying solid constituent of partial fermentation residue. Lower part of box is connected with collector of clarified liquid designed for hydraulically outwashing and transferring dung. EFFECT: enhanced efficiency of process. 2 dwg