Ultrafiltration rejection of dissolved ions using various weakly basic water-soluble polymers

被引：78

作者：

Juang, RS ^{[1
]}

Chiou, CH ^{[1
]}

机构：

[1] Yuan Ze Univ, Dept Chem Engn, Chungli 320, Taiwan

来源：

JOURNAL OF MEMBRANE SCIENCE | 2000年 / 177卷 / 1-2期

关键词：

polymer-assisted ultrafiltration; Cu(II); Zn(II); Mg(II); poly(ethylenimine); chitosan; poly(diallyl dimethylammonium chloride); polymer regeneration;

D O I：

10.1016/S0376-7388(00)00464-6

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The rejection of divalent metal ions including Cu2+ and Zn2+ from water in polymer-assisted ultrafiltration was studied. Three weakly basic water-soluble polymers: chitosan, poly(ethylenimine), and poly(diallyl dimethylammonium chloride) were selected, and the hydrophilic membrane Amicon YM10 (regenerated cellulose) was used. Experiments were performed as a function of solution pH. It was shown that a higher rejection of Cu2+ was obtained compared to Zn2+ as long as the pH was not far less than 7. The effect of added alkaline earth cation Mg2+ on metal rejection and filtration flux was examined. The regeneration of the three polymers from a retentate by electrolysis and acidification was finally evaluated. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：207 / 214

页数：8

共 15 条

[1] AGGREGATES IN ACIDIC SOLUTIONS OF CHITOSANS DETECTED BY STATIC LASER-LIGHT SCATTERING [J].