PLANT FOR TREATMENT OF OIL-CONTAINING SEWAGE WATERS Russian patent published in 1998 - IPC

FIELD: treatment of sewage waters containing oil products and suspended matter. SUBSTANCE: plant has cylindroconical body; pipelines supplying oil-containing sewage waters; devices for withdrawal of purified water, oil products and sediments; fine filters; settling reservoir with horizontal bottom inclined in direction of liquid flow and connected with cylindroconical body with the help of L-shaped branch pipe and located at the level of beginning of body control part with its horizontal part passing to the level of oil-containing sewage waters entering the body. Pipeline supplying oil-containing sewage waters at its outlet has U-shaped branch pipe located above level of the face of oil-containing sewage for possible deflection of supplied flow of liquid from body upper plane. EFFECT: higher efficiency. 1 dwg