COMPOSITION FOR RECULTIVATION OF THE SURFACE OF TAILINGS DUMPS CONTAINING TOXIC WASTE FROM PROCESSING OF MINERAL RAW MATERIALS Russian patent published in 2022 - IPC B09C1/00 C09K3/22 A62D3/00 

FIELD: mining industry.

SUBSTANCE: invention relates to the mining and processing industry, a composition for the recultivation of the surface of tailings dumps containing toxic waste from the processing of mineral raw materials, and can be used to reproduce the productivity of disturbed lands by rock dumps and tailings dumps containing toxic waste from the processing of mineral raw materials, characterized by a high concentration of heavy metal compounds (HM). The technical task the invention is aimed at solving is to reduce the negative impact of mineral processing waste on ecosphere objects from man-made pollution caused by toxic waste stored in tailings dumps and increase the efficiency of recultivation of their surface. The task is achieved by the fact that in the composition for recultivation of the surface of tailings, containing biochar, zeolites, man-made components, represented by ore enrichment waste of tin-containing raw materials, of a size class of 5+0.074 mm, in the form of dusty ore enrichment waste of tin-containing raw materials, stabilized in natural conditions from 3 to 20 years, according to the invention, additionally as organic sorbents, activated carbon and brewing waste are used at the following ratios of components, wt. %: biochar 25%, zeolites 5%, organic sorbents 10%: activated carbon in equal parts and beer pellets in dry form 5% each; ore enrichment waste of tin-containing raw materials 60%.

EFFECT: efficiency of recultivation of the surface of tailings dumps increases.

1 cl, 2 dwg, 2 ex