FIELD: chemistry.
SUBSTANCE: method for purification of bottom reservoirs from oil and oil products includes separation of oil and oil products from bottom sediments, lifting oil-containing mixture to the surface of reservoir and oil and oil products collection with their following utilisation. Bottom sediments are washed out by water-air jet. Lifted to the surface of reservoir by airlift 5 oil-containing mixture is divided into gas, companion water, light floating and hard sinking hydrophobic oil fractions. Gas is released into atmosphere. Hydrophobic oil fractions are collected in oil-collecting tank 1. Companion water is purified from remnants of oil products with oil-absorbing materials 11 and discharged into reservoir that is being purified. Device for purification of bottom sediments from oil and oil products includes floating oil-collecting tank 1, means for washing out and flotation 19, airlift channel 5 for transporting oil-containing pollutants and cascade of floating pools 10 with oil-absorbing means 11.
EFFECT: invention makes it possible to increase productivity and degree of water purification.
8 cl, 1 dwg
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