Abstract: Cationic and amphoteric flocculants have many advantages.Inrecent years, many scholars have paid their attention on the development and application of cationic and amphoteric flocculants.

• 文摘:阳离子型高分子絮凝剂及两性高分子絮凝剂具有许多优点，近年来得到国内外学者的广泛重视和开发应用。