PLANT FOR PURIFICATION OF SEWAGE WATERS FROM OIL PRODUCTS Russian patent published in 1998 - IPC

FIELD: purification of sewage waters from oil products. SUBSTANCE: plant includes accumulator, device for collecting floated oil products with branch pipe and hose, and vessels for clarified water and for floated products, and filter. Initial oil-containing water is periodically supplied to accumulating tank up to its capacity. Continuous separation into upper layer of floated impurities takes place in course of keeping of water in accumulator. Then water from accumulator passes to cartridge filter through branch pipe located between cover in the form of truncated cone and gauze supporting coalescence media of cartridge filter. During passage of preliminarily clarified water in accumulator through coalescence media of cartridge filter, further separation of oil products and water takes place due to fusion of fine droplets of oil into large ones. Location of coalescence cartridge filter in center of float system made in the form of four floats interconnected by hoses allow separation of oil products and water, as water accumulates in accumulator with varying level of initial water. EFFECT: higher efficiency. 2 dwg