DYNAMIC CHARACTERIZATION AND TRANSPORT MECHANISMS OF 2 INORGANIC MEMBRANES FOR NANOFILTRATION

被引:37
作者
SARRADE, S [1 ]
RIOS, GM [1 ]
CARLES, M [1 ]
机构
[1] CEA,RHONE VALLEY RES CTR,F-26702 PIERRELATTE,FRANCE
关键词
NANOFILTRATION; MASS TRANSPORT; CERAMIC OR COMPOSITE MEMBRANES; POLY(ETHYLENE GLYCOL);
D O I
10.1016/0376-7388(94)00158-U
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
This article discusses the transport mechanisms of water and uncharged solute molecules (PEG) through two new nanofiltration membranes: a pure ceramic (gamma-alumina) and a Nafion layer deposited on a mesoporous titanium oxide substrate. It is shown that in both cases the transport mechanisms are always predominantly convective rather than diffusive, even if the difference between the two components is less important with Nafion than with alumina due to specific chemical interactions between the membrane material and the solutes. This approach was also used to characterize the two membranes morphologically, notably the pore radius of similar to 0.6 nm.
引用
收藏
页码:155 / 166
页数:12
相关论文
共 11 条
[1]  
[Anonymous], 1972, [No title captured], Patent No. 3684747
[2]   INFINITE DILUTION DIFFUSION-COEFFICIENTS OF POLY(ETHYLENE GLYCOL) AND POLY(PROPYLENE GLYCOL) IN WATER IN THE TEMPERATURE-RANGE 303-318-K [J].
CHIN, KP ;
LI, SFY ;
YAO, YJ ;
YUE, LS .
JOURNAL OF CHEMICAL AND ENGINEERING DATA, 1991, 36 (03) :329-331
[3]  
HABERMAN WL, 1958, 1143 DEP NAV D TAYL
[4]  
LEJEUNE A, 1984, PERMEAMETRY MEMBRANE
[5]  
LIU MGV, 1991, KEY ENG MATER, V61, P603
[6]  
Mulder M, 1991, BASIC PRINCIPLES MEM, P149
[7]   ANALYSIS OF SOLUTES REJECTION IN ULTRAFILTRATION [J].
NAKAO, S ;
KIMURA, S .
JOURNAL OF CHEMICAL ENGINEERING OF JAPAN, 1981, 14 (01) :32-37
[8]  
PAPPENHEIMER JR, 1951, AM J PHYSIOL, V167, P13, DOI 10.1152/ajplegacy.1951.167.1.13
[9]   SEPARATION POTENTIAL OF NANOFILTRATION MEMBRANES [J].
RAUTENBACH, R ;
GROSCHL, A .
DESALINATION, 1990, 77 (1-3) :73-84
[10]  
SARRADE S, 1993, 6TH P WORLD FILTR C, P955