WATER TREATMENT PLANT Russian patent published in 2000 - IPC

FIELD: purification of water from suspended and colloidal impurities. SUBSTANCE: plant has an inclined tubular-type settling tank with a flocculating chamber, filter, water tower with a washing tank, floating charge located in the flocculating chamber and filter casing and a reagent inlet on the feed pipe-line. The reagent inlet is furnished with a mixer made in the form of an adapter with a nozzle and pipe connection for injection of outdoor free air. Located in the lower part of the flocculating chamber is an elastic ring with nozzles communicating with the feed pipe-line through a flexible tube, all nozzles have internal curvilinear grooves. EFFECT: complete and intensive mixing of reagents with treated water, uniform collection and distribution of washing water. 3 dwg