METHOD OF CLEANING SURFACE WATERS FROM SUSPENDED SUBSTANCES, OIL PRODUCTS, HEAVY METALS, ORGANIC SUBSTANCES Russian patent published in 2019 - IPC C02F9/12 C02F1/28 C02F1/48 C02F3/32 C02F103/44 

Abstract RU 2701833 C2

FIELD: treatment.

SUBSTANCE: invention relates to treatment of surface wastes from road territory. Method involves water supply for cleaning by transporting trays, cleaning from coarse solid substances, enlargement of emulsified particles of oil products by filtration in coalescing loading, extraction of heavy metals by filtration in geochemical barriers, deep cleaning due to use of natural mechanisms of self-purification in biopudes with higher water vegetation and afterpurification from oil products by filtration in sorbent placed in electric field. At that, cleaning from solid substances and oil products is carried out in centrifugal field of three-product hydrocyclone and extracted water-oil emulsion is successively filtered in coalescing charge and in hydrocarbon layer of hydrophobic-coalescing filter. Separated hydrocarbons are directed into accumulator, and purified water is returned into the total flow, mixed and fed for purification by filtration into geochemical barriers with mineral granular charge from silicised calcite fraction of 5–20 mm, located in electric field, created by electrochemical current sources, formed by electronegative electrodes from aluminium and electropositive electrodes from copper. Geochemical barriers are arranged in transporting trays in the form of separate sections arranged in series. Then, water is fed into accumulator and to biological treatment into sectional biopud with highest aquatic vegetation. Water is aerated by spout, purified from dissolved oil products by filtration on granulated sorbent from activated carbon AG-3, located in electric field created by electronegative electrode from aluminium and electropositive electrode from copper, and supplied to infiltration ponds for replenishment of underground water reserves.

EFFECT: method provides control of flow rate of surface run-in flowing to biological structures, transition to closed water use system, reduced material consumption of water treatment equipment.

1 cl, 2 dwg, 5 tbl

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RU 2 701 833 C2

Authors

Nazarov Maksim Vladimirovich

Dates

2019-10-01Published

2018-01-25Filed