一、前言聚合铝(碱式氯化铝)类混凝剂是一种高效能的新型混凝剂。近年来,我国各地进行了许多试制、试用工作,发展很快,效果良好。聚合铝类混凝剂的原料和制造方法是多种多样的,在水处理技术中的应用范围也是很广泛的。但是目前,我们大部分的实验内容尚多限于用酸溶铝灰、碱调pH值的方法, I. INTRODUCTION Polymeric aluminum (alkali aluminum chloride) coagulant is a new high-performance coagulant. In recent years, many trials and trials have been carried out in various parts of the country, with rapid development and good results. The raw materials and manufacturing methods of the polymeric aluminum coagulant are various, and the application range in the water treatment technology is also very wide. However, at present, most of our experimental content is still limited to the use of acid-soluble aluminum ash, alkaline pH method,