A complex copper-lead-zinc dressing of wastewater has a complicated composition. A variety of heavy metal ions are out of limits and a rich variety of residual mineral processing reagents. COD and pH index are over-standard. Direct recycling of dressing wastewater has a great influence on the dressing indexes. And direct emission has a serious contamination effect on the environment. Due to the characteristics of dressing of wastewater and the requirements of mineral processing, experiment adopted the following process to dispose the dressing wastewater-" coagulation precipitateC102 oxidation-...
