Recovery of Copper in Copper-containing Acid Mine Drainage From ZiJin Gold-copper Mine by Extraction Technology

The extraction copper in copper-containing acid mine drainage from ZiJin Gold-copper Mine was studied,99.99% purity copper cathode plate was producted,in raffinate copper concentration was less than 50 mg/L,the copper recovery rate was 94%.Using flocculants to speed residue slurry sedimentation.The supernate achieved the national mine water A class standards.The technology can not only help alleviate the pressure of environmental protection,but also reduce mine drainage processing costs.The technology has good economic and social benefits.