Effect of the ionic characteristics of charged membranes on the permeation of anionic solutes in reverse osmosis

被引：28

作者：

Yeom, CK ^{[1
]}

Lee, SH ^{[1
]}

Lee, JM ^{[1
]}

机构：

[1] Korea Res Inst Chem Technol, Chem Proc & Engn Ctr, Appl & Engn Chem Div, Taejon 305606, South Korea

来源：

JOURNAL OF MEMBRANE SCIENCE | 2000年 / 169卷 / 02期

关键词：

charged membranes; reverse osmosis; anionic surfactant; membrane fouling; sodium alginate; poly(vinyl alcohol); chitosan;

D O I：

10.1016/S0376-7388(99)00341-5

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In the separation of an anionic surfactant, ammonium perfluoroalkyl carboxylates from the residual aqueous solution in poly(tetrafluoroethylene) (PTFE) emulsion polymerization, reverse osmosis (RO) process was carried out by using three kinds of charged membranes, that is, anionic, cationic and nonionic membranes. Sodium alginate (SA), chitosan (CS) and poly(vinyl alcohol) (PVA) were prepared as the anionic, cationic and nonionic membranes, respectively. The permeation behaviors were investigated with the charge characteristics of the membranes in terms of electrostatic interaction between permeant and membrane, namely, Donnan potential. Also, the effects of operating condition, such as, feed pressure, feed concentration and permeation rate, have been discussed in terms of membrane fouling and concentration polarization. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：237 / 247

页数：11

共 9 条

[1] Characterisation and prediction of separation performance of nanofiltration membranes [J].