METHOD OF INTEGRATED DRINKING WATER TREATMENT Russian patent published in 2013 - IPC C02F9/14 C02F3/02 C02F1/24 C02F1/32 C02F1/52 

FIELD: process engineering.

SUBSTANCE: invention relates to multistage recycled water treatment and may be used for purification of drinking water and effluents. Proposed method comprises flotation treatment of water in flotation cell 2 by air-water mix fed from ejector 3, bubble-film extraction of surfactants by extractor 4, discharge of purified water and removal of surfactants. Water is treated in at least one treatment module 1 with at least one circular cleaning cycle. Said cycle comprises water filtration through sand bulk filter 5 and its discharge with the help of suction drain means 6. It includes also bactericidal treatment in UV radiator 7 and flotation treatment of clarified water. Besides it comprises bubble-film extraction of surfactants, biological cleaning in aerobic reactor 8 filled with activated carbon with colonies of aerobic heterotrophs and feeding water for recycling. Purified water is discharged after multiple recycling.

EFFECT: higher quality of water purification.

4 cl, 2 dwg, 1 tbl