Flux reduction of ultrafiltration membranes with different cut-off due to adsorption of a low-molecular-weight hydrophobic solute-correlation between flux decline and pore size
(1998) In Journal of Membrane Science 149(1). p.11-20- Abstract
- The flux of ultrafiltration membranes may be severely reduced when treating low-molecular-weight hydrophobic solutes even though the cut-off of the membrane is orders of magnitudes greater than the size of the solute molecules. In this investigation, the flux reduction was correlated to the membrane pore size using octanoic acid as a model substance. As a comparison, the pore size was also determined by measuring the retention of a dextran solution and by using the liquid-liquid displacement porometry method (LLDP). The membranes used were four asymmetric polysulphone and polyethersulphone membranes with nominal molecular weight cut-off (NMWCO) between 6 and 50 kDa. It is shown that the use of a low-molecular-weight hydrophobic solute may... (More)
- The flux of ultrafiltration membranes may be severely reduced when treating low-molecular-weight hydrophobic solutes even though the cut-off of the membrane is orders of magnitudes greater than the size of the solute molecules. In this investigation, the flux reduction was correlated to the membrane pore size using octanoic acid as a model substance. As a comparison, the pore size was also determined by measuring the retention of a dextran solution and by using the liquid-liquid displacement porometry method (LLDP). The membranes used were four asymmetric polysulphone and polyethersulphone membranes with nominal molecular weight cut-off (NMWCO) between 6 and 50 kDa. It is shown that the use of a low-molecular-weight hydrophobic solute may provide a rapid and simple method of characterising hydrophobic ultrafiltration membranes, both regarding their sensitivity to flux reduction due to adsorption, and their pore-size distribution (C) 1998 Published by Elsevier Science B.V. All rights reserved. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3915704
- author
- Lindau, J ; Jönsson, Ann-Sofi LU and Bottino, A
- organization
- publishing date
- 1998
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- fouling, capillary induced phase separation, hydrophobic solute, pore, size, membrane characterization
- in
- Journal of Membrane Science
- volume
- 149
- issue
- 1
- pages
- 11 - 20
- publisher
- Elsevier
- external identifiers
-
- wos:000076723600001
- scopus:0344625373
- ISSN
- 0376-7388
- DOI
- 10.1016/S0376-7388(98)00161-6
- language
- English
- LU publication?
- yes
- id
- e61b81a6-ebf5-4f3c-b7cb-c2fe688148ec (old id 3915704)
- date added to LUP
- 2016-04-01 16:15:12
- date last changed
- 2023-11-14 07:58:22
@article{e61b81a6-ebf5-4f3c-b7cb-c2fe688148ec,
abstract = {{The flux of ultrafiltration membranes may be severely reduced when treating low-molecular-weight hydrophobic solutes even though the cut-off of the membrane is orders of magnitudes greater than the size of the solute molecules. In this investigation, the flux reduction was correlated to the membrane pore size using octanoic acid as a model substance. As a comparison, the pore size was also determined by measuring the retention of a dextran solution and by using the liquid-liquid displacement porometry method (LLDP). The membranes used were four asymmetric polysulphone and polyethersulphone membranes with nominal molecular weight cut-off (NMWCO) between 6 and 50 kDa. It is shown that the use of a low-molecular-weight hydrophobic solute may provide a rapid and simple method of characterising hydrophobic ultrafiltration membranes, both regarding their sensitivity to flux reduction due to adsorption, and their pore-size distribution (C) 1998 Published by Elsevier Science B.V. All rights reserved.}},
author = {{Lindau, J and Jönsson, Ann-Sofi and Bottino, A}},
issn = {{0376-7388}},
keywords = {{fouling; capillary induced phase separation; hydrophobic solute; pore; size; membrane characterization}},
language = {{eng}},
number = {{1}},
pages = {{11--20}},
publisher = {{Elsevier}},
series = {{Journal of Membrane Science}},
title = {{Flux reduction of ultrafiltration membranes with different cut-off due to adsorption of a low-molecular-weight hydrophobic solute-correlation between flux decline and pore size}},
url = {{http://dx.doi.org/10.1016/S0376-7388(98)00161-6}},
doi = {{10.1016/S0376-7388(98)00161-6}},
volume = {{149}},
year = {{1998}},
}