淀粉基吸附剂对污水中重金属离子吸附研究的最新进展

Recent developments of adsorption of metal ions in wastewater by starch-based adsorbents

淀粉及其衍生物因具有卓越的吸附能力、可再生和生物降解,越来越受到人们的关注。就影响淀粉基吸附剂对金属离子的吸附过程、吸附能力等因素进行了介绍,找出其最佳吸附条件、吸附等温线和最大吸附容量。并对淀粉基吸附剂与其他低成本吸附剂做了比较,指出淀粉吸附剂具有许多商业化优势,必将成为重金属污水处理的主要材料。

Starch and its derivatives have attracted much attention due to their properties of renewable,biodegradable and excellent adsorption capability.In this paper,the adsorption process of metal ions by starch-based adsorbents and the influencing factors on adsorption capability are introduced,and the optimum conditions of adsorption,adsorption isotherm and maximum adsorption capacities were found out.The advantages and shortcomings were found by comparing starch-based adsorbents with other low-cost adsorbents.It was pointed out that the starch-based adsorbents would be main materials to adsorb metal ions in wastewater because of their many commercial advantages.