METHOD FOR CLEANING AND RECLAMATION OF OIL-CONTAMINATED SOILS Russian patent published in 2023 - IPC B09C1/00 

FIELD: agriculture.

SUBSTANCE: invention relates to the field of agriculture, and in particular to a method for cleaning and recultivating oil-contaminated soil. A method for cleaning and reclamation of oil-contaminated soils using a sorbent based on natural zeolite with a clinoptilolite content of 65-70% with a fraction size of 1-3 mm and a humic acid preparation consists in that the natural zeolite is preliminarily saturated with a 30-35% solution of humic acid for 5 -10 minutes, after which they evenly apply a dose of 100-150 g/kg of contaminated soil and simultaneously loosen it. Soil moisture is maintained at the level of 70-80% of the lowest moisture capacity. Reclamation is carried out within 4-5 months, while the ambient air temperature can vary from -2°C to maximum positive climatic values.

EFFECT: uniform introduction of the drug based on zeolite into the contaminated soil in the process of reclamation, reducing the content of oil pollution below 1 g/kg for 4-5 months at ambient air temperature from -2°C to maximum positive climatic values.

1 cl, 2 tbl