絮凝剂PFS和铁粉联合投加对含铅废水的吸附研究

Study on the Floculant PFS and Powdered Iron on the Stocking of Lead Industrial Wastewater

采用絮凝剂PFS和铁粉联合去除工业废水中的铅。废水进入反应器后,通过铁粉的电化学反应的氧化还原,以及絮凝剂PFS的絮凝等作用的综合效应使重金属得以从废水中除去。试验结果表明,去除铅废水的最佳操作条件为：絮凝剂的投加量13 mg/L,铁粉的投加量20 mg/L,pH值6.5-7.5,水力停留时间5 h,采用连续曝气,曝气量0.2 L/min。

In this paper,lead industrial wastewater can be removed by flocculant and powdered iron.Lead wastewater was removed by using electrochemical reaction and coagulation of flocculant.The results show that the optimum technics condition was that the doses of PFS and powdered iron were 13 mg/L and 20 mg/L,pH was 6.5～7.5,HRT was 5 h,continuous aeration,with the amount of 0.2 L/min.