PROCESS AND STORM WASTE WATER TREATMENT STATION Russian patent published in 2018 - IPC C02F9/12 

FIELD: machine engineering.

SUBSTANCE: process and storm waste water treatment station includes a flotation plant connected by the system of pipelines, a unit for preparing and dosing flocculant solution, a unit for preparing and dosing coagulant solution, saturator, decanter, UV disinfection plant, five-stage filtration unit, a unit for preparing and dosing sodium hypochlorite solution connected to the pipeline, feeding drain water to the inlet of the five-stage filtration unit for supplying sodium hypochlorite to the inlet of the first stage of filters, or the second stage of filters, or the fourth stage of filters, a unit for water washing of filters, a unit for alkaline washing of filters connected to the five-stage filtering unit for washing at least, the first, the second and the third filter stages, a unit for preparation and dosing of alkali neutralisation solution connected to the pipeline supplying the alkaline flushing water from the five-stage filtration unit to the beginning of the treatment cycle.

EFFECT: increased filter service life of the five-stage filtration unit.

6 cl, 1 dwg