Bi-ionic chloride-nitrate equilibrium in a commercial ion-exchange membrane

被引：0
|
作者：
Amang, DN [1 ]
Alexandrova, S [1 ]
Schaetzel, P [1 ]
机构：
[1] Univ Caen, LTP, GTE, F-50000 St Lo, France
来源：
DESALINATION | 2003年 / 159卷 / 03期
关键词：
ion-exchange membrane; bi-ionic equilibrium; swelling; activity coefficient; selectivity coefficient;
D O I：
暂无
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Chloride-nitrate equilibrium was studied using the Neosepta ACS(R) anion-exchange membrane. Ion-exchange isotherm and selectivity coefficient were performed on the basis of the Donnan equilibrium and Helfferich's equilibrium relationship. Fixed ionic group concentration and water activity coefficients in the membrane were constant for any concentration of the nitrate and chloride ions in the solution. It was shown that the selectivity coefficient is more than unity and that the membrane has a good selectivity for nitrate ions.
引用
收藏
页码：267 / 271
页数：5
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