MAN-MADE PEATY SOIL FOR RECLAMATION OF OIL-CONTAMINATED AND DISTURBED LANDS Russian patent published in 2014 - IPC B09C1/00 

FIELD: chemistry.

SUBSTANCE: soil-sludge mixture for reclamation of oil-contaminated and disturbed lands contains a mixture obtained by treating a composition consisting of oil sludge, peat, sand and water, with the following ratio of components, wt %: vanadium oxide 32.5; carbon 31.4; aluminium oxide 7.5; silicon oxide 7.5; nitrogen oxide 6.8; iron oxide 5.3; hydrogen 4.4; magnesium oxide 1.5; manganese oxide 0.8; lead oxide 0.4; chromium oxide 0.4; zinc oxide 0.4; nitrogen 0.4; related impurities 0.7. Components of the composition of oil sludge, peat, sand and water are in the following ratio, wt %: oil sludge 30-40%; peat 30-35%; sand 30-35%; water - the balance. The related impurities include a proppant which contains ceramic spheres, a cut of the oil-contaminated soil layer containing crushed stone, and fine wastes of ferrous and nonferrous metals. Treatment involves mixing the composition of oil sludge, peat, sand and water in a hopper of an UZN-1MGZH apparatus.

EFFECT: improving environmental conditions, restoring fertility of oil-contaminated and disturbed lands, higher fertility as a result of enrichment of contaminated soil with oxygen and mineral fertilisers during treatment and reducing oil-contaminated areas.

4 cl, 1 tbl