中文摘要：

研究了生物膜法对广东省某硫化铅锌矿尾矿库外排废水的处理效果，探索不同载体，不同COD浓度对生物膜法降解COD的影响。结果表明，高浓度的COD对生物膜法处理选矿废水有影响，在6～13℃的条件下，水力停留时间为2d时，以50／2／／1×25cm×0．4cm的黏胶材料生物载体作为挂膜载体，处理50L硫化铅锌矿尾矿库外排废水取得了良好效果，出水COD浓度稳定在40mg／L左右，出水达到《铅、锌工业污染物排放标准》（GB25466—2010）的要求。

英文摘要：

In this study, the application of biofilm process for the treatment of the Pb-Zn sulfide ore tailing wastewater of Guangdong Province was investigated. The effect of different carriers and COD concentrations on bio-degradation of COD was explored in biofilm process. The results indicate that the biological membrane meth- od has a certain influence for degradation of high content of COD mineral processing wastewater. With hydraulic retention time （HRT） of 2 days, the most appealing effects of biofilm treatment of 50 L wastewater can be ob- served at 6 - 13℃ , while the 50 cm × 25 cm × 0.4 cm viscose material as a carrier. The COD was maintained at 40 mg/L. After treatment of biofilm, the effluent could meet the emission standard of pollutants for the lead and zinc industry （ GB25466-2010）.