过去，循环冷却水处理一直采用复杂的化学处理方法，化学药品管理困难，且易造成二次污染。近年来，国外推出了冷却水的非化学处理方法。该方法的主要特点是：（１）用静电发生器除垢代替化学除垢剂；（２）用银－铜电极电流发生器产生的银－铜离子杀菌代替化学杀菌灭藻剂；（ In the past, circulating cooling water treatment has been using complex chemical treatment methods, chemical management is difficult, and easily lead to secondary pollution. In recent years, non-chemical treatment of cooling water has been introduced abroad. The main features of this method are: (1) descaling with an electrostatic generator instead of chemical descaling; (2) silver-copper ion sterilization by a silver-copper electrode current generator instead of chemical germicide;