不同类型阴离子交换树脂对Cr(Ⅵ)的吸附性能研究  

STUDIES ON ADSORPTION OF Cr(Ⅵ) WITH DIFFENRENT TYPES OF ANION EXCHANGE RESINS

作　　者：吴秋原[1,2] 刘福强[1,2] 侯鹏[1,2] 李爱民[1,2] 

机构地区：[1]污染控制与资源化研究国家重点实验室,南京210046 [2]南京大学环境学院,南京210046

出　　处：《离子交换与吸附》2012年第6期532-540,共9页Ion Exchange and Adsorption

基　　金：江苏省环保科研课题(201119);江苏省自然科学基金项目(BK2010057)

摘　　要：通过静态吸附实验、动力学实验,从3种吸附去除Cr(Ⅵ)的离子交换树脂中优选出DEX-Cr树脂,研究了pH、温度对其交换性能的影响,进一步对树脂的动态吸附-再生性能和重复使用稳定性进行了考察。结果表明DEX-Cr树脂对Cr(Ⅵ)的吸附去除效果好,且重复使用稳定性高,可以作为分离去除Cr(Ⅵ)的高效吸附剂。Three ion exchange resins （D301, D314 and DEX-Cr） have been screened to remove Cr（VI） from water through the static and dynamics adsorption experiments, and DEX-Cr resin showed good performance. The influences of pH and temperature on tile exchange capacity of the DEX-Cr resin were tested by the dynamic adsorption experiment. The reusability and stability of the resin were tested by dynamic adsorption-regeneration experiments. All the experimental results showed that DEX-Cr resin was an effective adsorbent for removing Cr（VI） from water.

关 键 词：离子交换 CR(VI) 吸附 再生 

分 类 号：O647.3[理学—物理化学]