城镇供水在净化处理过程中,都须先将药剂加入原水进行絮凝、沉淀、过滤,然后进行消毒,而目前常用的絮凝药剂主要是铝盐和铁盐,这些药剂在使用过程中都存在一定的缺陷,如对设备、管道等有腐蚀作用;处理过的水会有药剂的残留物;凝聚过程中 In the purification process of town water supply, all the agents must be added to the raw water to flocculate, precipitate, filter, and then disinfected. At present, the commonly used flocculants are mainly aluminum salts and iron salts. These pharmaceuticals all have certain levels during use. Defects, such as corrosive effects on equipment, pipelines, etc.; treated waters have residue of medicaments; agglomeration process