This paper introduces the present studies on the natural polymer flocculation agents modified by starch,chitosan,lignin and gum,and their applications in the wastewater treatment are summarized.

• 概括了以淀粉、壳聚糖、木质素和植物胶为原料改性而成的天然高分子有机絮凝剂的研究与应用概况,并对它们在废水处理中的应用和发展进行了综述。