COMPOSITION FOR RECULTIVATION OF OPEN-CUT MINES AND DISTURBED LANDS Russian patent published in 2007 - IPC C09K17/00 A01B79/02 

FIELD: ecology.

SUBSTANCE: invention relates to building and reclamation of lands in petroleum-extracting regions, in particular, for recultivation of dry-digging open-cut mines and disturbed lands providing recovery of relief and productivity of soil and utilization of boring slime as a toxic drilling waste. The composition comprises peat-sand mixture (1:1) as a filling agent and a sorbent, 49-69% by volume, 30-50% of boring slime made in building holes and up to 1% of active additives used for reducing the concentration of soluble petroleum products and their toxicity, and for neutralization of peat medium acid reaction to increase pH value from 3-4 to 6-7.5. As active additives method involves the following components by volumes: (a) unslaked lime, 0.6-0.8%; "Soileks", 0.12-0.15%, and "Degradolais", the balance; or (b) sorbent "Unipolimer", 0.4-0.6%; biochemical preparation "Polyenzyme complex UNI-REM", 0.4-0.6%. Using the proposed composition provides elimination open-cut mines and recovery the productive soil layer and promotes to utilization of industrial waste, i. e. boring slimes, and reducing the cost.

EFFECT: valuable properties of composition.

4 cl