Electrokinetic characterisation of ultrafiltration membranes by streaming potential, electroviscous effect, and salt retention

被引:44
作者
Huisman, IH [1 ]
Prádanos, P [1 ]
Hernández, A [1 ]
机构
[1] Univ Valladolid, Fac Ciencias, Dpto Termodinam & Fis Aplicada, Valladolid 47071, Spain
关键词
zeta potential; streaming potential; electroviscous effect; salt retention; ultrafiltration;
D O I
10.1016/S0376-7388(00)00479-8
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
The possibility of determining the zeta potentials of ultrafiltration membranes from measured electroviscous effects and salt retentions was investigated. Therefore, electroviscous effects, salt retentions and streaming potentials of various Millipore ultrafiltration membranes were measured at various salt concentrations and pH. Using highly simplified models, apparent zeta potentials could be calculated front the obtained data. Values of zeta potential thus obtained were in qualitative agreement, the values of iso-electric point obtained from the different methods being very similar. However, the absolute values of the zeta potentials obtained from the three different methods were quite different; results obtained from electroviscosity and salt retention measurements were often smaller than those obtained from streaming potential measurements. This seemed to depend on the accuracy of the equations, used to calculate the zeta potential, and thus not on inherent defects of the techniques. (C) 2000 Elsevier Science B.V All rights reserved.
引用
收藏
页码:55 / 64
页数:10
相关论文
共 22 条
[1]   An improved Space-Charge model for flow through charged microporous membranes [J].
Basu, S ;
Sharma, MM .
JOURNAL OF MEMBRANE SCIENCE, 1997, 124 (01) :77-91
[2]   Effect of adsorbed protein on the hydraulic permeability, membrane and streaming potential values measured across a microporous membrane [J].
Benavente, J ;
Jonsson, G .
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 1998, 138 (2-3) :255-264
[3]   Charge adsorption and zeta potential in cyclopore membranes [J].
Calvo, JI ;
Hernandez, A ;
Pradanos, P ;
Tejerina, F .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1996, 181 (02) :399-412
[4]   Charge effects on inorganic membrane performance in a cross-flow microfiltration process [J].
Elzo, D ;
Huisman, I ;
Middelink, E ;
Gekas, V .
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 1998, 138 (2-3) :145-159
[5]   REVERSE ELECTRODIALYSIS IN CHARGED CAPILLARY MEMBRANES [J].
FAIR, JC ;
OSTERLE, JF .
JOURNAL OF CHEMICAL PHYSICS, 1971, 54 (08) :3307-&
[6]   MEMBRANE TRANSPORT CHARACTERISTIC OF ULTRAFINE CAPILLARIES [J].
GROSS, RJ ;
OSTERLE, JF .
JOURNAL OF CHEMICAL PHYSICS, 1968, 49 (01) :228-&
[7]   Determining the zeta potential of ultrafiltration membranes using their salt retention [J].
Huisman, IH ;
Trägårdh, G .
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 1999, 157 (1-3) :261-268
[8]   Determining the zeta-potential of ceramic microfiltration membranes using the electroviscous effect [J].
Huisman, IH ;
Tragardh, G ;
Tragardh, C ;
Pihlajamaki, A .
JOURNAL OF MEMBRANE SCIENCE, 1998, 147 (02) :187-194
[9]   Water permeability in ultrafiltration and microfiltration: Viscous and electroviscous effects [J].
Huisman, IH ;
Dutre, B ;
Persson, KM ;
Tragardh, G .
DESALINATION, 1997, 113 (01) :95-103
[10]  
HUISMAN IH, 1999, INT C MEMBR MEMBR PR