FIELD: environmental protection. SUBSTANCE: method includes raising the contaminated stream over brook level. Petroleum product dissolved in water is separated in the form of foam due to gas evacuation in floating. Cleaned water is returned to brook level. Device includes vacuum tank 1 with intake pipeline 2 and drain pipeline 3 installed over dam 14. Ends of intake and drain pipelines are placed lower than dam pipe hydraulic gate. Drain pipeline 3 of vacuum tank is provided with hydraulic gate 15 with valve and placed over end of intake pipeline. Intake and drain pipelines and dam pipe are filled so as to have similar cross section area. EFFECT: environmental protection. 2 cl, 2 dwg
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Authors
Dates
1996-10-20—Published
1991-06-24—Filed