DEVICE FOR PURIFYING WASTE WATERS FROM OIL PRODUCTS Russian patent published in 2016 - IPC C02F9/12 C02F1/40 C02F1/24 

FIELD: ecology.

SUBSTANCE: invention relates to treatment of waste water from admixtures of organic substances - oil products, fats, surfactants, as well as mechanical impurities and can be used in motor transport services, railway transport, food and leather-fur industries enterprises. Floatation chamber 8 is made as a cylindrical barrel, in the upper part of which there is tray 9 connected by overflow pipe 10 with tank 11. Reagent is fed from reservoir 12. Inside chamber 8 shell 14 is fixed coaxially on perforated partitions 13, under the lower edge 15 of which there is rigidly installed inclined partition 16 from a highly porous foamed metal with a lyophobic coating forming cavity 17 for collection of sediment and cavity 18 of partially treated water. Pump 3 pressure pipe is connected with ejector 4, the mixing chamber of which is connected to the air supply source and to pipeline 22 for reagent entrainment. Ejector 4 outlet is connected with branch pipe 25 to supply the mixture to shell 14 over horizontal partition 26 rigidly fixed inside it and made of a highly porous metal with a lyophobic coating, above which there is float 27 from a ferromagnetic highly porous metal. On the outer side of shell 14 above supply branch pipe 25 there are annular magnets 28, embraced by magnetic field concentrator 29. Outlet nozzle 19 is connected to additional pump 32, pressure line 33 of which is connected via a pipeline to the filtration system consisting of filter 36 with a coalescing properties, one outlet of which is connected with sorption filter 37, and the other outlet is connected to the inlet of additional ejector 43, from the outlet of which the liquid medium comes to chamber 17 of residue collection above inclined partition 16, on the body of filter 36 annular magnets are installed.

EFFECT: higher quality of purifying contaminated waste waters with simultaneous increase of safety of the plant servicing.

1 cl, 2 dwg, 2 tbl