LOCAL WASTEWATER TREATMENT PLANT AND ITS BIOFILTER FOR WASTEWATER TREATMENT FOR USE IN LOCAL WASTEWATER TREATMENT PLANT Russian patent published in 2023 - IPC C02F3/10 C02F9/00 

FIELD: waste treatment.

SUBSTANCE: local treatment device includes a sealed container with two service wells. The sealed container is divided by partitions with holes into five chambers, namely, a septic chamber, which is connected to the denitrifier chamber, which contains a wastewater treatment biofilter, in addition, finely porous composite aeration elements of the denitrifier chamber are fixed in the lower part of the denitrifier chamber, and an airlift of the denitrifier chamber is also fixed in the denitrifier chamber, while the denitrifier chamber is connected through pipes in the partition to the nitrifier chamber, inside which a membrane biofilter with a built-in composite aeration element is fixed, the nitrifier chamber is connected to the secondary clarifier chamber with a built-in airlift of the secondary clarifier chamber, the secondary clarifier chamber is connected through a branch pipe in the partition to the clean water chamber containing the pump. A sludge collector is fixed inside the first well, which is connected to both airlifts. The second well has a ventilator cap on its cover. A compressor is fixed inside the second well, connected to the air line by means of tubes for each aeration element and for each airlift. All tubes are made with built-in taps, all branch pipes in the partitions have a vertical outlet. The wastewater treatment biofilter is made in the form of a frame with a fixed biocarrier made in the form of sponge cubes.

EFFECT: improved treatment efficiency.

4 cl, 2 dwg