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We are running CIL circuit , 2 leaching thanks and 7 leaching&adsorption tanks.gold deposit is a greenschist facies lode gold deposit in which most
of the gold is hosted as free gold by quartz-sulphide vein in altered
microgranite, with minor gold associated with the altered wall rocks.
Our solid tails gold was >0.1[g/t], but now more than double , our cyanide concentration is 500ppm in the first tank and >20 ppm in the last tank. pH from tank number five to nine is below ten ..[in number nine 7]. Does this low pH have great influence in the availability of free cyanide or in the increase of solid loss.