METHOD FOR CLEANING AND RECULTIVATING OIL-CONTAMINATED SOILS Russian patent published in 2021 - IPC B09C1/00 

Abstract RU 2754448 C1

FIELD: agriculture.

SUBSTANCE: invention relates to the field of agriculture, and in particular to a method for cleaning and recultivating oil-contaminated soil. The method for cleaning and recultivating oil-contaminated soils using a sorbent based on zeolite provides for the sequential introduction of natural zeolite into the cleaned soil with a clinoptilolite content of 65-70% with a fraction size of 1-3 mm and a dose of 150 g/kg of soil and a humic powder preparation based on brown coal with a humic acid content of at least 73-82% with an application dose of 15 g/m2 of soil. Further, loosening is carried out to the depth of contamination, while the soil moisture is maintained at 60% and reclamation is carried out within 4-6 months. The ambient air temperature must be above +3°C.

EFFECT: invention provides an improvement in the quality of soil cleaning in the process of reclamation, a decrease in the content of oil pollution below 1 g/kg, possibility of further use of the cleaned soil for the cultivation of crops for the next year.

1 cl, 1 tbl, 2 ex

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RU 2 754 448 C1

Authors

Ovchinnikov Aleksej Semenovich

Meshcheryakova Elena Gennadevna

Meshcheryakov Maksim Pavlovich

Bocharnikov Viktor Sergeevich

Bocharnikova Olesya Vladimirovna

Chushkina Elena Ivanovna

Dates

2021-09-02Published

2021-02-01Filed