FIELD: oil-and-gas production.
SUBSTANCE: proposed method comprises mixing, for example by excavation of oil-contaminated soil at refinery sewage disposal plant with petrochemical process sludge in the ratio of 9:8:1 (wt parts), agrotechnical and agrochemical treatment of obtained mix consisting in application of mineral and organic fertilisers and phytorecultivation.
EFFECT: reduced content of oil products and concentration of heavy metals in sludge not exceeding MPC.
2 cl, 3 tbl
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