In one Yunnan dressing plant,the leaching solution is produced by a cyanidation process,the concentration of cyanide,thiocyanide,copper and mercury is increased greatly when the leaching solution flowed into water,and the concentration of CNT and SCN in the leaching solution in tailings pond is increased greatly,so the safety and environmental pressure of the enterprise is also increased,cyandie breaking was carried out by using of sulphur dioxide-air method,the total end cyandie content reach to 0.226 mg/L,the treatment cost for one ton cyandie-bearing waste water is ￥1.26 yuan;it can provide a basis for cyanide-bearing leaching solution.
维普
万方数据