FIELD: purification constructions.
SUBSTANCE: invention can be used for purification of storm flows from bridge road surface from suspended particles and oil products. Storm sewage waters flow into receiving accumulating reservoir 1 via bridge chute through receiving grid 3. Coarser particles precipitate in sand-collecting bunker 4 and after accumulation are removed via hole 10. Oil products accumulate in chamber 6 and are removed through branch pipe for oil products discharge 11. Through hatch 12 suspended particles and oil products are separated. Partially purified water from reservoir 7, as well as excess of storm flow through decantation pipeline 13 get on bioplateau 9 through hydroseal 8.
EFFECT: invention allows to reduce installation dimensions, reduce its material consumption, cost and exploitation expenditures preserving high efficiency of water purification from suspended substances and oil products.
2 cl, 2 dwg
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