Influence of the concentration of a low-molecular organic solute on the flux reduction of a polyethersulphone ultrafiltration membrane
(1997) In Journal of Membrane Science 135(1). p.117-128- Abstract
- Drastic flux reductions are sometimes encountered during ultrafiltration of solutes much smaller than the membrane pores. This usually occurs during ultrafiltration of hydrophobic, low-molecular solutes, such as fatty acids, alcohols and alkanes. The influence of the concentration of a carboxylic acid, octanoic acid, on the flux of a polyethersulphone membrane was studied in this investigation. The concentration was found to have a marked influence on the flux. The flux reduction was moderate at low concentrations, but became severe above a certain, critical concentration. Two fur-reducing mechanisms were evaluated; reduction of the effective pore radius by adsorption of solute molecules on the pore walls, and blocking of pores by... (More)
- Drastic flux reductions are sometimes encountered during ultrafiltration of solutes much smaller than the membrane pores. This usually occurs during ultrafiltration of hydrophobic, low-molecular solutes, such as fatty acids, alcohols and alkanes. The influence of the concentration of a carboxylic acid, octanoic acid, on the flux of a polyethersulphone membrane was studied in this investigation. The concentration was found to have a marked influence on the flux. The flux reduction was moderate at low concentrations, but became severe above a certain, critical concentration. Two fur-reducing mechanisms were evaluated; reduction of the effective pore radius by adsorption of solute molecules on the pore walls, and blocking of pores by capillary condensation. The adsorption of octanoic acid on a hydrophobic solid surface was studied by null ellipsometry. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3915723
- author
- Jönsson, Ann-Sofi LU ; Lindau, J ; Wimmerstedt, Roland LU ; Brinck, J and Jönsson, Bengt LU
- organization
- publishing date
- 1997
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- fouling, ultrafiltration, adsorption, capillary condensation
- in
- Journal of Membrane Science
- volume
- 135
- issue
- 1
- pages
- 117 - 128
- publisher
- Elsevier
- external identifiers
-
- wos:A1997YC67400012
- scopus:0343852796
- ISSN
- 0376-7388
- DOI
- 10.1016/S0376-7388(97)00135-X
- language
- English
- LU publication?
- yes
- id
- 7583e680-afc8-4f0f-b82f-cb95e851bec2 (old id 3915723)
- date added to LUP
- 2016-04-01 16:09:28
- date last changed
- 2023-09-04 13:24:41
@article{7583e680-afc8-4f0f-b82f-cb95e851bec2,
abstract = {{Drastic flux reductions are sometimes encountered during ultrafiltration of solutes much smaller than the membrane pores. This usually occurs during ultrafiltration of hydrophobic, low-molecular solutes, such as fatty acids, alcohols and alkanes. The influence of the concentration of a carboxylic acid, octanoic acid, on the flux of a polyethersulphone membrane was studied in this investigation. The concentration was found to have a marked influence on the flux. The flux reduction was moderate at low concentrations, but became severe above a certain, critical concentration. Two fur-reducing mechanisms were evaluated; reduction of the effective pore radius by adsorption of solute molecules on the pore walls, and blocking of pores by capillary condensation. The adsorption of octanoic acid on a hydrophobic solid surface was studied by null ellipsometry.}},
author = {{Jönsson, Ann-Sofi and Lindau, J and Wimmerstedt, Roland and Brinck, J and Jönsson, Bengt}},
issn = {{0376-7388}},
keywords = {{fouling; ultrafiltration; adsorption; capillary condensation}},
language = {{eng}},
number = {{1}},
pages = {{117--128}},
publisher = {{Elsevier}},
series = {{Journal of Membrane Science}},
title = {{Influence of the concentration of a low-molecular organic solute on the flux reduction of a polyethersulphone ultrafiltration membrane}},
url = {{http://dx.doi.org/10.1016/S0376-7388(97)00135-X}},
doi = {{10.1016/S0376-7388(97)00135-X}},
volume = {{135}},
year = {{1997}},
}