Cyanide Wastewater Treatment In Gold Cyanidation Plant
alkaline chlorination is a method commonly used in various countries. this method requires adding chlorine oxidant highly-charged oxidation states in alkaline cyanide wastewater. the commonly used oxidants are cl, bleach powder, sodium hypochlorite, calcium hypochlorite, chlorite and so on.but because sodium cyanide is so effective at dissolving gold, is well understood and relatively inexpensive, competing technologies need to offer compelling recoveries and economics to compete. cyanide leaching is very easy, robust and has simple chemistry, says rob raponi, an independent metallurgical consultant specializing in gold If further leaching of gold by cyanidation or the method is assumed, then the process is carried out in a relatively neutral medium: at a pulp pH above 4.0. for the neutralization resulting from the oxidation of the reactions and of sulfuric acid, the cheapest reagent is used limestone and or soda.