FIELD: process engineering.
SUBSTANCE: invention relates to biotechnology, namely, to methods of removing oil contaminants from substrates. Proposed method comprises processing the substrate by biopreparation and earthworms of native species. To prepare nutritive medium for earthworms, used is organic material crushed to 20-50 mm-particle size, i.e. leaf litter, sunflower shells and the like to be treated by lactoserum, its content making 40-80 l per one ton of organic material. Prepared material is added into substrate, apart from sandy soil, along with scarifier in amount sufficient for oxygen content in substrate not less than 12%. Then, nutritive medium is added into substrate in amount of 10-30% of total weight and, then, biofertiliser in amount of 70-90 ml per 1 m2 of substrate. Ploughing is made to depth of 0.1-0.4 m.
EFFECT: higher efficiency of reclamation.
6 cl, 4 dwg
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