EFFLUENTS BIOLOGICAL TREATMENT DEVICE Russian patent published in 2015 - IPC C02F9/14 C02F3/30 B01D21/02 

FIELD: process engineering.

SUBSTANCE: invention relates to biological treatment of domestic and industrial effluents. Proposed device comprises tank divided by webs and partitions into separate sections and compartments, air feed system lines, effluents distribution and discharge lines and system of silt mixes distribution and biological filter. Said tank is composed of cylindrical outer wall 2 fitted coaxially at bed 1, mid cylindrical wall 3 and settler composed by lower conical part 4, lower cylindrical part 5, upper cylindrical part 6 and upper cylindrical part 7. Space between walls 2 and 3 is separated by different-height webs. Every compartment has separate web with bore at its bottom part. Space between mid wall 3 and settler is divided by vertical different-height webs with cutouts 51 into separate cascade-overflow sections. Settler bottom part has slotted valves and wastes trap 33 arranged at the bottom.

EFFECT: higher quality of cleaning, simplified process.

5 dwg