METHOD OF CLEANING ALKALINE EFFLUENTS OF OIL PROCESSING Russian patent published in 2013 - IPC C02F9/06 C02F1/44 C02F1/469 C02F101/32

Abstract RU 2472718 C1

FIELD: process engineering.

SUBSTANCE: invention relates to treatment of industrial effluents. Oil products are separated in separators 3, 4 and afterpurified in ultra filtration unit 10. Clarified alkaline effluents are directed into electrolytic cells 13. alkali is concentrated in electrolytic cell cathode chamber 14 while sulphides are reduced to elementary sulfur in anode chamber 15. Concentrated alkali and sulfur are discharged into service bins 17, 20, respectively. Downstream of electrolytic cells 13, effluents are treated in reverse-osmosis unit 22. Purified water is collected in tanks 23. Concentrate is fed back into tank 21 for clarification.

EFFECT: alkali recover, water purification and elementary sulfur without use of extra reagents.

2 cl, 1 dwg

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RU 2 472 718 C1

Authors

Vartsov Vitalij Vladimirovich

Ivashkin Evgenij Gennad'Evich

Dates

2013-01-20—Published

2011-09-29—Filed