WASTE WATER SURFACE CLEANING SYSTEM (VERSIONS) Russian patent published in 2016 - IPC C02F3/32 C02F9/14 C02F11/02 C02F101/20 

FIELD: ecology.

SUBSTANCE: group of inventions relates to treatment of effluents. Proposed is a waste water treatment system (versions). In one version the system comprises serially arranged linear rows of woody plants-bioaccumulators, arranged between them rows of sorption-filtration modules with a sorption load of natural sorbents. Said rows are isolated from the lower soil layers by a screening layer of clay with the filtration coefficient of Cf=0.005 m/day. Modules protrude over the surface of soil at the height of not less than 15 cm. End module is connected with a sealing gabion structure, which involves a weir for drainage to advanced treatment into the water body, wherein at the base of the structure Charophyta are planted. Sealing gabions structure consists of crushed stone with saturation of hot sand-bitumen mastic. In another version the system further includes in the first row of sorption-filtration modules a neutralizer filter. Neutralizer filter is composed as a gabion structure with a sorption load of sedimentary rocks with the filtration coefficient of Cf=10-20 m/day.

EFFECT: inventions provide higher quality of cleaning waste water, including strongly acid ones, from heavy metals.

2 cl, 2 dwg, 1 tbl