DEVICE FOR REAGENT PURIFICATION OF SEWAGE WATER Russian patent published in 1997 - IPC

FIELD: water purification facilities. SUBSTANCE: device is intended for purification of used oil-containing emulsions and other sewage water containing petroleum products. It has cylindrical body with tapered lower part, two mixers located inside the body. Mounted on upper flange of body is vessel for collection of slime which floats up to surface of purified water. Vessel contains unit for separation and removal of slime which is made in the form of disks possessing hydrophobic property. Pressed against surface of disks are strips which remove slime and direct it to drain pipe connection. Unit for automatic discharge of purified water isolates slime. It is located in body and has gate valve which when moving up and down closes and opens a hole in vessel. Also provided in device is fine cleaning filter which separates casual mechanical impurities, and system for delivery of reagents and liquid to be treated. Device continuously removes dewatered slime with independent discharge of purified water. EFFECT: high efficiency. 1 dwg