FIELD: mining.
SUBSTANCE: method includes natural decontamination of the heap cyanide leaching stack, separation of the material by size into productive and unproductive fractions by means of high-intensity vibratory screening with simultaneous aqueous washing of the material. The productive fraction is sent for pelletizing with cement and ferrous sulfate, re-packing in a new pile, bioviscovering of gold and silver using a solution of the bacterial complex of microorganisms Ac. ferrooxidans and Ac. thiooxidans of its own biocenosis, cyanidation, control water flushing of the stack.
EFFECT: increased depth of mineral raw materials processing with the receipt of additional saleable output.
5 cl, 1 tbl, 2 ex
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