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中文摘要：
羧甲基壳聚糖及其改性产品的吸附性能主要体现在对各种金属离子的的吸附上。为了有选择性地吸附某些金属离子，人们通过修饰、交联、接枝等方法对羧甲基壳聚糖进行了各种改性研究。文章综述了1992年以来羧甲基壳聚糖及其衍生物在金属离子吸附方面的研究进展。展望了吸附剂在重金属离子废水处理过程中的巨大优势和良好的发展前景。
英文摘要：
The adsorption performances of carboxymethyl chitosan and its modification products mainly embody in the various metal ions adsorption. To have selective adsorption of some metal ions, people do many kinds of modified research on the carboxymethyl chitosan through the modification, crosslinking and grafting method. The paper reviewed the study progress about carboxymethyl chitosan and its derivatives in the adsorption aspects of some metal ions since 1992 year. Moreover, it prospected that the absorbent had the huge advantage and good development outlook in the wastewater treatment process of heavy metal ions.
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