TECHNOGENIC SOIL AND METHOD FOR PRODUCTION THEREOF Russian patent published in 2020 - IPC B09C1/00 

FIELD: ecology.

SUBSTANCE: group of inventions relates to reclamation of oil-contaminated lands, in particular to production of soils during disposal of drilling wastes. Sorbent and additives are regularly distributed over drilling wastes. Then, half of design volume of sand is added to wastes. Formed layer of waste, sorbent and sand is mixed to produce a homogeneous mixture. At the second stage of soil preparation, cement is uniformly distributed over the obtained mixture and the second half of the calculated volume of sand is added. Obtained mixture is re-mixed, after mixing the mixture is leveled. First type soil is held in the sludge tank cell or in the cone on the accumulation platform up to one day. In order to produce technogenic second type soil at the third stage, immediately after mixing the mixture, peat is applied and distributed uniformly on the ground surface of technogenic first type and mixed at once, at the end of mixing the mixture is leveled.

EFFECT: improved productivity of oil-contaminated lands.

4 cl, 2 dwg, 7 tbl