METHOD OF LIQUIDATION OF SOIL POLLUTION WITH HYDROCARBONS Russian patent published in 1996 - IPC

FIELD: oil production. SUBSTANCE: invention relates with use of microorganisms to liquidate oil pollution on soil surface. Method involves aeration of polluted soil and addition of microorganism aqueous suspension and nitrogen and phosphorus mineral salts. Soil aeration method involves trench making parameters of which dependent on soil pollution degree with hydrocarbons. Aqueous suspension draining by trench and containing microorganism and mineral salts is collected and used periodically adding if necessary nitrogen and phosphorus salts. Microorganism source is concortium from water taken off from critical hole zone where soil is polluted with oil. EFFECT: improved method of soil treatment. 3 cl, 1 tbl