FLOTATION-FILTRATION PLANT BY KOCHETOV Russian patent published in 2014 - IPC C02F9/02 C02F1/24 C02F1/28 B01D36/00 

FIELD: machine building.

SUBSTANCE: flotation-filtration plant comprises an intake filter 1, a suction pipeline 2, a check valve 8, a pump unit 3, an ejector 4 connected to a bypass pipeline 5 and installed at the inlet of the pump unit 3, a flotation cell 22 with a filter 29 and a layer of filtering bed 30. A protective grid is installed at the inlet of the ejector 4. The ejector 4 is connected to a two-stage saturator 15, 16. The second saturator stage through the check valve is connected to a distribution manifold 21 by nozzles 20 which are set in the upper part of the flotation cell 22 with the latter comprising a scraper unit 25, a tray 26 and an overflow tube connected to the upper part of the filter while the filter is fitted with a layer of adsorbing filtering bed which is held by a supporting frame 31 and a pressing frame 32. An adsorbent is made as a cylindrical ring with two hemispherical surfaces being fixed on the side surface of the adsorbent opposite each other so that diametral planes of the hemispheres coincide with the upper and lower bases of the cylindrical ring respectively and the vertices of the hemispherical surfaces are turned to each other.

EFFECT: invention allows for improvement of waste water treatment efficiency up to the level providing for multiple reuse of the said water.

2 cl, 2 dwg