FILTER TREATMENT PLANT FOR SOLID COMMUNAL WASTE LAND Russian patent published in 2021 - IPC C02F9/02 C02F9/04 C02F9/08 

FIELD: environmental protection.

SUBSTANCE: invention relates to environmental protection, in particular, for the treatment of leachate at the landfill of solid municipal waste. The unit for reagent treatment of the installation is equipped with an acid supply unit, two parallel-installed reactors for neutralizing the filtrate and a reactor with a low-speed stirrer. The two-stage filtration unit contains a storage tank and a contact clarifier at the first stage, and a storage tank and a disk microfilter at the second stage. The reverse osmosis unit is equipped with a concentrate accumulator and is at least four-stage. At the first stage of the reverse osmosis unit, a nanofiltration membrane is used, and at the second and subsequent stages, low-pressure reverse osmosis membranes are used. Each stage of the reverse osmosis unit is equipped with a hydraulic accumulator tank and a pump.

EFFECT: increasing the degree of filtrate purification and reducing the risks of environmental pollution.

5 cl, 1 dwg, 1 tbl