摘要：采用混凝过滤工艺对PVC乳化废水进行了预处理试验，研究了混凝剂种类、pH值、混凝剂投加量及絮凝剂投加量对处理效率的影响。试验结果表明：混凝剂Al2（SO4）3?18H2O对投量 100 mgL，PAM投加量3mg/L和废水叫值为pH值为5.5的条件下，进水（CODcr）为12000 mg/L，经混凝沉淀+石英砂过滤后，出水产（CODcr）可降至750 mg/L。 关键词：聚氯乙烯 混凝沉淀 硫酸铝 石英砂 过滤 废水处理 Abstract：PVCemulsified wastewater was treated by a coagulationfiltration processFactors that influence the treatment efficiency，such as the kind of flocculant，the pH value and the dose of flocculant，were studiedTheresults show that when the concentration of the coagul
