METHOD OF TAILING DUMP IN MOUNTAIN TRENCHES RECULTIVATION Russian patent published in 2017 - IPC E21C41/32 A01B79/02 B09C1/00 

FIELD: ecology.

SUBSTANCE: invention relates to mining industry environmental safety and mountain landscapes protection against chemical contamination, coming with surface and underground water flows on tailing dump side. Method involves recultivation by means of loamy layer application and compaction. At that, recultivation is performed in three stages, first forming trenches in 15–30 m from tailing dump coastal zone (beach), with depth below tailing dump bottom for 3–5 m, with width of 1.5–2 m, with subsequent excavation of carcinogenic substances bottom deposits from tailing dump bottom, which are transported and stored in spent and abandoned mines at depth of past mining operations, and tailing dump bottom is filled with irlit-containing absorbent clays, creating geochemical barrier for water flows on tailing dump side.

EFFECT: technical result is creation of geochemical barrier for protection of surrounding landscapes against further spreading of chemical contamination, simplification of tailing dump reclamation.

1 cl, 2 ex