METHOD FOR CLEANING AND RECLAMATION OF SOIL CONTAMINATED WITH OIL AND OIL PRODUCTS Russian patent published in 2016 - IPC B09C1/00 

FIELD: biotechnology.

SUBSTANCE: invention relates to a method of cleaning soil from oil and oil products. Proposed method for cleaning and reclamation of soil, contaminated with oil and oil products, includes introduction into soil a sorbent, biopreparation and earthworms, wherein sorbent used is an organic-mineral sorbent with total pore volume not less than 2.0 cm³/g, average pore radius 200-2,000 nm, impregnation thereof with 0.5-1 % aqueous solution of biopreparation, introduction into soil in amount of 0.1-0.2 kg per 1 kg of soil, holding for at least three weeks, then introducing compost worms E. Fetida in an amount of not less than 10 individuals per 1 kg of soil and holding for 20 weeks at temperature not below 5 °C, for soil moisture of not less than 60 %.

EFFECT: efficient cleaning of soil contaminated with oil and oil products in amount of up to 80 g/kg of soil.

1 cl, 1 tbl, 10 ex