Feasibility of the use of polymer-assisted membrane filtration for brackish water softening

被引：34

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 | 2001年 / 187卷 / 1-2期

关键词：

brackish water softening; polymer-assisted ultrafiltration; poly(ethylenimine); poly(diallyl dimethylammonium chloride); chitosan; fouling analysis;

D O I：

10.1016/S0376-7388(01)00330-1

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The feasibility of using polymer-assisted ultrafiltration for brackish water softening, i.e. the removal of Na+, K+, Ca2+ Mg2+, Cl-, NO3-, and SO42- from water, was studied. Three weakly basic, cationic water-soluble polymers chitosan, poly(ethylenimine), and poly(diallyl dimethylammonium chloride) were selected. The membranes Amicon YM10, YM30 (regenerated cellulose), and PM10 (polysulfone) were used. Experiments were performed as a function of solution pH. It was shown that the removal of divalent Ca2+ and Mg2+ was more efficient than that of univalent Na+ and K+. In addition, the rejection of anions decreased in the order NO3- > Cl- > SO42-. Finally, the fouling of membranes during filtration was analyzed by conventional cake filtration theory taking into account incompressible or compressible nature of the deposited cake. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：119 / 127

页数：9

共 27 条

[11] REMOVAL OF ARSENIC FROM GROUNDWATER USING REAGENT BINDING MEMBRANE SEPARATION [J].