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2 456 406

(13)

(51)

IPC

E02B15/04(2006-01-01)

C02F3/02(2006-01-01)

(21) (22)

Application

2011106305/13, 2011-02-18

(24)

Start date

2011-02-18

(22)

Actual filing date

2011-02-18

(45)

Published

2012-07-20

(72)

Inventor

Nadein Aleksandr Filippovich

(73)

Holder

Uchrezhdenie Rossijskoj Akademii Nauk Institut Ehkologicheskikh Problem Severa Ural'Skogo Otdelenija Ran

METHOD OF CLEANING CIRCULATING WATER RESERVOIRS FROM OIL FILMS Russian patent published in 2012 - IPC E02B15/04 C02F3/02

Abstract RU 2456406 C1

FIELD: chemistry.

SUBSTANCE: method involves treating oil films with a biopreparation-based biomass. A 0.45 m³ reservoir is filled with 0.4 m³ of active sludge from secondary settling tanks of oily waste biological treatment facilities. Further, oil collected from the water surface is added in amount of 2.5-5.0% of the volume of sludge and the biopreparation. The biopreparation is added in amount of 7.5-10.0 kg per 1 m³ of active sludge. Reservoir contents are stirred and held for 10-15 days while continuously feeding air. If necessary, the obtained biomass is diluted with uncontaminated oil or water oil products. Treatment of oil films collected in front of crosswise floating booms with biomass is carried out at maximum water level in the reservoir.

EFFECT: method enables to cut the time for full cleaning of water reservoirs and their shores from oil films.

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RU 2 456 406 C1

Authors

Nadein Aleksandr Filippovich

Dates

2012-07-20—Published

2011-02-18—Filed