工业水处理 ›› 2009, Vol. 29 ›› Issue (9): 6-10. doi: 10.11894/1005-829x.2009.29(9).6

• 专论与综述 • 上一篇    下一篇

壳聚糖吸附处理低浓度重金属废水

陈培榕, 吴耀国, 刘保超   

  1. 西北工业大学理学院应用化学系, 陕西西安 710072
  • 出版日期:2009-09-20 发布日期:2010-10-01
  • 作者简介:陈培榕(1985-),西北工业大学在读硕士研究生,电话:13519144143,E-mail:Chenpeirong@126.com.

Progress of the treatment of wastewater containing heavy metal with low concentration by chitosan-based adsorbents

Chen Peirong, Wu Yaoguo, Liu Baochao   

  1. Department of Applied Chemistry, Northwestern Polytechnical University, Xi’an 710072, China
  • Online:2009-09-20 Published:2010-10-01

摘要:

壳聚糖类生物质材料因其良好的吸附性能、广泛的来源以及低廉的成本,在水中重金属和有机污染物的吸附处理中被广泛使用。综述了壳聚糖吸附处理低浓度重金属废水的研究进展,重点比较了壳聚糖微球与壳聚糖膜对水体中重金属离子的吸附效果,总结了用以提高壳聚糖吸附剂性能(如吸附容量、吸附选择性、稳定性等)的各种途径及其改善效果。针对壳聚糖类重金属吸附剂应用中仍然存在的一些不足,结合废水处理的实际需求,探讨了今后的研究中值得关注的方向。

关键词: 壳聚糖微球, 壳聚糖膜, 吸附, 重金属离子

Abstract:

Because of its excellent adsorption capacity,easy obtainable sources and low cost,chitosan has been widely applied,as adsorbent,to the treatment of wastewater containing heavy metal and organic pollutants. The progress in the treatment of wastewater containing heavy metal by chitosan is summarized. The effects of the adsorptive efficiency of chitosan beads,chitosan membranes or films on the heavy metal ions in water body are compared emphatically. The ways of improving the heavy metal adsorbent performances,such as adsorbing volume,selectivity,stability,etc.,are summarized,too. Aiming at the deficiency in its application,and the real need of the wastewater treatment,the research direction worthy of concern in the future is discussed.

Key words: chitosan beads, chitosan membranes, adsorption, heavy metal ions

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