SYSTEM FOR SEWAGE WATER PURIFICATION (VERSIONS) Russian patent published in 2016 - IPC C02F3/32 C02F9/14 

FIELD: chemistry.

SUBSTANCE: systems contain successively located from drain filtering elements, biopond and water drainage system, where macrophytes in form of complex of hydatophytes, hydrophytes and helophytes are planted into biopond, bottom and walls of biopond and filtering section are made from shielding layer of loams. In one version as filtering elements system contain filtration section, filled with limestone with water filtration coefficient water resistance coefficient, and filtering module in form of dunite-based material, enclosed into mesh box-shaped containers. In other version as filtering elements system contains filtration section, filled with gravel with water filtration coefficient Cf=10-20 m/day and oil destructors, separated from biopond with steel net barrier.

EFFECT: increased efficiency of sewage water purification from heavy metals and oil products.

2 cl, 2 dwg, 1 tbl