Liquid-liquid displacement porometry to estimate the molecular weight cut-off of ultrafiltration membranes

被引：44

作者：

Ignacio Calvo, Jose ^{[1
]}

Israel Peinador, Rene ^{[1
]}

Pradanos, Pedro ^{[1
]}

Palacio, Laura ^{[1
]}

Bottino, Aldo ^{[2
]}

Capannelli, Gustavo ^{[2
]}

Hernandez, Antonio ^{[1
]}

机构：

[1] Univ Valladolid, Fac Ciencias, Dept Fis Aplicada, Valladolid 47071, Spain

[2] Univ Genoa, Dipartimento Chim & Chim Ind, I-16136 Genoa, Italy

来源：

DESALINATION | 2011年 / 268卷 / 1-3期

关键词：

Molecular weight cut-off; Dextran retention; Pore size distribution; Liquid-liquid porometty; PORE-SIZE DISTRIBUTIONS; NANOFILTRATION MEMBRANES; TRANSPORT-PROPERTIES; UF MEMBRANES; RETENTION; DEXTRAN; PREDICTION; POROSIMETRY; MORPHOLOGY; REJECTION;

D O I：

10.1016/j.desal.2010.10.016

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Liquid-liquid displacement porometry (LLDP), is proposed to estimate the molecular weight cut-off value of Ultrafiltration (UF) membranes. Several commercial UF membranes are analysed by using LLDP and their pore size distributions have been used to estimate the molecular weight cut-off as should be obtained by dextran retention. Results compared reasonably with nominal cut-off values given by manufacturers. The method offers a fast and accurate way to assign cut-off values for UF membranes, without having to perform expensive and time consuming solute retention tests, which bring results very often difficult to compare due to the difficulties in the standardization of such methods. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：174 / 181

页数：8

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