METHOD FOR BIOLOGICAL CLEANING OF SOILS CONTAMINATED BY OIL PRODUCTS Russian patent published in 2017 - IPC B09C1/10 

FIELD: agriculture.

SUBSTANCE: method for biological cleaning of soils contaminated with oil products includes introducing granules of sapropel with microorganisms immobilized on it as a solid carrier in contaminated soil. The sapropel granules immediately before application are treated at the ratio of 1:0.015 by weight with the liquid form of the Naftox biopreparation based on aerobic hydrocarbon-oxidizing bacteria Pseudomonas aeruginosa-12-P or Pseudomonas citronelollis-48-Y with the working titer of the biopreparation -10 in 8 cells/ml. After that, the rehabilitated soil is immediately cultivated with simultaneous harrowing to the depth of 25-30 cm and subsequent watering from the calculation of bringing the soil humidity up to 60%. The sapropel granules treated with Naftox biopreparation can be introduced into previously ploughed soil contaminated with oil products.

EFFECT: method by means of complex use of the natural ameliorant sapropel and Naftox biopreparation based on hydrocarbon-oxidizing bacteria of the genus Pseudomonas - biodestructors transforming oil hydrocarbons into carbon dioxide and environmentally friendly products allows in a relatively short time to effectively clean the soil from oil products and to restore its structure and fertility.

2 cl, 5 tbl, 2 ex