Natural polymer flocculants-chitosan has advantages of material-abundant,nonpoisonous,biodegradable,low-priced,many scholars have paid attention to it.

• 天然高分子絮凝剂壳聚糖具有原料丰富、无毒、易于生物降解、价廉等优点,受到了国内外众多研究者的重视和开发应用。