The existing neutralization method of acid mine drainage treatment of a mine for cadmium could reach the standard require-ment,but a depth removal technology is required to ensure that mass concentration of Cd2+in the wastewater is reduced to below 0.005 mg/L.This article studies the treatment on cadmium-containing wastewater by different chemical precipitation methods,and the indus-trial experiments were conducted.The results indicated that:the depth removal effect of YS for cadmium was the best,with which mass concentrations of Cd2+in the effluent were below 0.005 mg/L.Compared with the similar domestic technologies,the cost was 0.288 Chi-nese Yuan per ton.At present,this technology has been in industrial operation for 10 months in this mine,and the mass concentration of Cd2+remains stable between 0.001～0.005 mg/L.
维普
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