Ion transport modelling through nanofiltration membranes

被引：72

作者：

Garba, Y ^{[1
]}

Taha, S ^{[1
]}

Gondrexon, N ^{[1
]}

Dorange, G ^{[1
]}

机构：

[1] Ecole Natl Super Chim Rennes, Lab Chim Eaux & Environm, F-35700 Rennes, France

来源：

JOURNAL OF MEMBRANE SCIENCE | 1999年 / 160卷 / 02期

关键词：

nanofiltration; model; ion transfer parameters; transport mechanism; salt rejection;

D O I：

10.1016/S0376-7388(99)00085-X

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The aim of this work is to study the transport mechanism of ions through nanofiltration membranes. A model based on extended Nernst-Planck and film theory equations is reported. This model can be characterized by three transport parameters: the water permeability L-p, the salt transmittance Phi and the effective salt transfer coefficient K-eff. The knowledge of the feed and permeate concentration and of the permeate volumetric flux enable us to calculate these transport parameters. The model is used to estimate cadmium salts rejection by a NANOMAX 50 membrane. Experimental and calculated results are shown to be in good agreement. The model is then successfully extended to experimental data reported in the literature. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：187 / 200

页数：14

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