壳聚糖膜的改性及在废水处理中的应用进展

Modification of chitosan membrane and its application in wastewater treatment

着重从提高壳聚糖膜吸附性能的角度出发,结合水处理机理,从表面改性、共混改性、纳米复合改性、离子印迹改性、接枝改性及其他改性方法六个方面综述了近年来改性壳聚糖膜的方向及其在处理染料废水、重金属离子废水及其他水生污染物中的应用进展。介绍了壳聚糖膜的成膜机理和制备方法,并探讨了膜的重复使用性。总结改性壳聚糖膜的优缺点,展望了壳聚糖膜的改性新方向。

Focuses on improving its adsorption properties and combined with the water treatment mechanism,from the aspects of surface modification,blend modification,nanocomposite modification,ion imprinting modification,graft modification and other modification methods,the direction of modified chitosan film and its application in the treatment of dyes wastewater,heavy metal ion wastewater and other aquatic pollutants were reviewed.The film forming mechanism and preparation method of chitosan film were introduced,and the reusability of the film was discussed.Finally,the advantages and disadvantages of modified chitosan membrane were compared,and the new modification direction of the chitosan membrane were expected.