A comparison of membrane charge of a low nanofiltration ceramic membrane determined from ionic retention and tangential streaming potential measurements

被引：23

作者：

Labbez, C

Fievet, R

Szymczyk, A

Thomas, F

Simon, C

Vidonne, A

Pagetti, J

Foissy, A

机构：

[1] Lab Chim Mat & Interfaces, F-25030 Besancon, France

[2] INPL, UMR 7569 CNRS, Lab Environm & Mineral, F-5401 Vandoeuvre Les Nancy, France

[3] SINTEF Mat Technol, Oslo, Norway

来源：

DESALINATION | 2002年 / 147卷 / 1-3期

关键词：

ceramic membrane; retention; tangential streaming potential; effective volume charge;

D O I：

10.1016/S0011-9164(02)00539-8

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The retention of neutral solutes and ionic solutions on a NF ceramic membrane was measured. The Donnan Steric Pore Model (DSPM) was fitted to these observations yielding effective pore radius (r(p)) and thickness/porosity ratio (Deltax/A(k)) from neutral solutes data and the effective volume charge (X) from electrolyte data. Effective volume charges were also directly determined using tangential streaming potential measurements. The DSPM gives X in good agreement with the values obtained by streaming potential. However, it overestimates Deltax/A(k) compared to the value deduced from neutral solute retention.

引用

页码：223 / 229

页数：7

共 10 条

[1] Characterisation of nanofiltration membranes for predictive purposes - Use of salts, uncharged solutes and atomic force microscopy [J].