According the problems existed in cyclic utilization of washing wastewater, the coagulation tests utilizing iron trichloride, aluminum sulfate and PACC aluminum polychlorid are studied respectively.

• 针对洗涤废水的循环利用问题,利用三氯化铁、硫酸铝、PAC(聚合氯化铝)对洗涤废水分别进行了混凝实验研究,通过对实验结果的分析,指出PAC为洗涤废水循环利用的最佳混凝剂。