METHOD OF TREATING DRAINAGE EFFLUENT AND DEVICE TO THIS END Russian patent published in 2010 - IPC C02F1/28 B01D25/02 B01D39/06 E02B11/00 C02F103/10 

FIELD: process engineering.

SUBSTANCE: invention relates to treatment of effluents and can be used for water control practice. Proposed method comprises removal of mechanical impurities, heavy metals, excess salts by forcing drainage effluent through filtration matrix arranged on the way of drainage effluent flow, said matrix comprising the following sorbents in % by volume: shell limestone-50%, greensand-30%, expanded clay-20%. Filtration matrix represents a rigid metal carcass made from steel angle and having its side faces lined with sheet steel. Carcass is furnished with trash screen arranged on working side that allows passage of drainage effluent. Carcass comprises three inserted detachable cartridges with sorbents arranged in certain sequence along the effluent flow: shell limestone, greensand, expanded clay. Each detachable cartridge represents metal case made from steel angles with its bottom and side faces lined by sheet steel. Cartridge case has bronze screens arranged on working sides and furnished with filtration material secured thereto from inside and with two sheet steel braces that double as stiffness ribs with mounting hinges.

EFFECT: higher quality of effluents treatment.

2 cl, 4 dwg, 4 tbl, 6 ex