FIELD: agriculture. SUBSTANCE: apparatus has reservoir made in the form of semicylinder and provided with inclined semiconical bottom, discharge auger mounted in inclined bottom of reservoir, sewage collector with feeding chute, discharge chute, and lateral spillway. Feeding chute and discharge chute are arranged at respective opposite ends of arched outer chamber defined by partition wall, which is mounted around reservoir so that it does not reach inclined bottom. Partition wall divides reservoir into outer arched chamber and continuous inner chamber. At least one tube with perforated upper part is horizontally mounted on arched outer chamber along the whole length thereof. Charging chute is inclined into outer arched chamber and is equipped with upper perforated bottom with discharge scraper conveyor above it and lower discharge funnel positioned outside reservoir and connected through pipeline with device for grinding solid organic substances separated from sewage. Adjustable telescopic level regulating drain pipe cooperating with discharge branch pipe of grinder and intake funnel for large solid sewage substance are mounted in continuous inner chamber of reservoir. Intake funnel is cooperating with circulation pump connected to discharge auger wash pipeline and through injector to perforated pipes in outer chamber. Apparatus is used in animal and poultry farms, complexes and plants and allows floating organic inclusions to be separated from sewage and ground and simultaneously settling solid mineral substances to be separated and washed during removal. EFFECT: increased efficiency and enhanced reliability in operation. 2 cl, 4 dwg
