METHOD AND DEVICE FOR PURIFICATION OF WATER FROM WEIGHTED IMPURITIES Russian patent published in 2018 - IPC B01D24/06 B01D24/16 C02F1/00 

FIELD: technological processes.

SUBSTANCE: invention relates to water treatment, process fluids, lubricating and cooling liquids, detergent solutions from suspended impurities contained in them and can be used in water treatment plants and industrial plants. Method for purifying water from suspended impurities is that, according to it, filtration is carried out by supplying contaminated water to filter bottom and into perforated tubes, withdrawal of purified water through vertical perforated discharge tubes, pairwise adjacent to filter elements and uniformly placed in continuous volumetric filtering charge of micropowder at distance of filtering layer between them, periodically regenerate by feeding mixture of water with compressed air into top layer of micropowder and supplying contaminated water and purified water through supply filter elements and outflow tubes, and suspended impurities and micropowder particles are directed by washing water to upper housing part and suspended impurities are removed through shell windows, tightened with polymer mesh, recovered micropowder is returned in continuous volumetric filtration charge. Device for treating water from suspended impurities includes cylindrical body, bottom and cover, tube board with vertically arranged filter elements in form of perforated tubes, pipelines for supply and removal of water, filtering micro-powder is placed in housing in form of continuous volumetric filtering charge, in which pairwise adjacent filter elements are placed with covering in form of net stocking and vertical perforated outflow tubes, nozzles for supplying mixture of water and air are placed above upper layer of micropowder, and in housing upper part is annular chamber with windows covered with polymer mesh, cells of which are larger than dimensions of suspended impurities, but smaller than grain size of filter micropowder.

EFFECT: technical result consists in increasing productivity of cleaning process, increasing washing efficiency of contaminated layer of filter micropowder, as well as possibility of regeneration and re-use of micropowders, which significantly reduces operating costs, reducing laboriousness of coating perforated tubes of the device.

2 cl, 1 dwg