Removal of cadmium using MnO_2 loaded D301 resin  

作　　者：ZHU Zhi-liang MA Hong-mei ZHANG Rong-hua GE Yuan-xin ZHAO Jian-fu 

机构地区：[1]Key Laboratory of Yangtze Aquatic Environment of Ministry of Education, State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China

出　　处：《Journal of Environmental Sciences》2007年第6期652-656,共5页环境科学学报（英文版）

基　　金：Project supported by Shanghai Municipal Committee of Science andTechnology(No.05JC14059);the National Natural Science Foun-dation of China(No.50478103)

摘　　要：MnO2 loaded weak basic anion exchange resin D301 （Anion exchange resin, macroreticular weak basic styrene） as adsorbent has been prepared and applied to the removal of cadmium. The adsorption characteristics have been investigated with respect to effect of pH, equilibrium isotherms, removal kinetic data, and interference of the coexisting ions. The results indicated that the Cd^2＋ could be efficiently removed using MnO2 loaded D301 resin in the pH range of 3-8 from aqueous solutions with the co-existence of high concentration of alkali and alkaline-earth metals ions. The saturate adsorption capacity of the Cd^2＋ was 77.88 mg/g. The adsorption process followed the pseudo first-order kinetics. The equilibrium data obtained in this study accorded excellently with the Langmuir adsorption isotherm.MnO2 loaded weak basic anion exchange resin D301 （Anion exchange resin, macroreticular weak basic styrene） as adsorbent has been prepared and applied to the removal of cadmium. The adsorption characteristics have been investigated with respect to effect of pH, equilibrium isotherms, removal kinetic data, and interference of the coexisting ions. The results indicated that the Cd^2＋ could be efficiently removed using MnO2 loaded D301 resin in the pH range of 3-8 from aqueous solutions with the co-existence of high concentration of alkali and alkaline-earth metals ions. The saturate adsorption capacity of the Cd^2＋ was 77.88 mg/g. The adsorption process followed the pseudo first-order kinetics. The equilibrium data obtained in this study accorded excellently with the Langmuir adsorption isotherm.

关 键 词：CADMIUM KINETICS adsorption loaded resin REMOVAL 

分 类 号：TU991.26[建筑科学—市政工程] X703[环境科学与工程—环境工程]