FLOTATION-FILTRATION PLANT Russian patent published in 2018 - IPC C02F9/04 C02F1/24 C02F1/28 C02F1/52 B01D24/04 B03D1/14 

FIELD: water treatment.

SUBSTANCE: invention relates to wastewater treatment plants used in vehicle washing stations and can be used in water treatment. Flotation filtration plant comprises filter 1, suction line 2, check valve 8, pump unit 3, ejector 4, flotation chamber 22 with filter 29 and filtering bed 30 with adsorbent, nozzles 20, located in the lower part of flotation chamber 22, containing scraper mechanism 25, tray 26 and the overflow tube connected to the upper part of filter 29, having support frame 31 and presser 32. Ejector 4 has two nozzles 11, 12. One choke 11 serves to inject the reagent solution and is connected by tube 42 to metering pump 6 and other one 12 to the atmospheric air. Ejector 4 is connected with two-stage saturator 15-16. Protective grid is installed at the inlet of ejector 4. Adsorbent is made in the form of a cylindrical ring, on the lateral inner surface of which are fixed partitions in the form of holes perpendicular to the axis of the ring of washers, whose axes are asymmetric to the axis of the ring, or in the form of interconnected helical spirals, inscribed in a spherical surface with a center, lying on the axis of the connection of the spirals, or in the form of at least twelve connected three-bladed propellers in the block, the projection of which fits into a circle with a center coinciding with the center of one of them.

EFFECT: invention increases efficiency of purifying waste water.

1 cl, 6 dwg