Pilot study on treatment of wastewater from production of flotation reagent for extracting copper by physicochemical-biological process
物化-生化组合工艺处理提铜选矿药剂生产废水中试实验研究

A pilot-scale field test was conducted on treatment of wastewater from production of flotation reagent for extracting copper, by the "acidification-sedimentation + Fe-C micro-electrolysis + lime neutralization + hydrolytic acidification + aerobic biological oxidation + catalytic oxidation by Fenton reagent + lime neutralization" process, and the removal efficiency of COD, decolourization and deodorization were investigated mainly. The test focused on the operating character of biochemical unit and its COD removal. The experimental results show that the combination technology can effectively decontaminate the wastewater. The ultimate effluent is clear, odorless, and its content of COD, chroma, pH etc will satisfy the class II criteria of the Integrated Wastewater Discharge Standard (GB8976-1996).