Advanced

Influence of adsorption and concentration polarisation on membrane performance during ultrafiltration of a non-ionic surfactant

Byhlin, Henric LU and Jönsson, Ann-Sofi LU (2003) In Desalination 151(1). p.21-31
Abstract
Surfactants are present in almost all aqueous solutions-either as additives for different purposes, or because they occur naturally. Because of the common occurrence of surfactants in process water it is important to know how they behave in membrane processes. Ultrafiltration membranes allow almost complete passage of surfactant monomers, but reject micelles almost completely. Concentration polarisation during ultrafiltration of surfactant solutions is therefore mainly influenced by the presence of micelles. Operating parameters, e.g. the transmembrane pressure and the concentration of surfactant, as well as the pure water flux of the membrane, have a marked influence on the performance of hydrophilic membranes, as shown in this... (More)
Surfactants are present in almost all aqueous solutions-either as additives for different purposes, or because they occur naturally. Because of the common occurrence of surfactants in process water it is important to know how they behave in membrane processes. Ultrafiltration membranes allow almost complete passage of surfactant monomers, but reject micelles almost completely. Concentration polarisation during ultrafiltration of surfactant solutions is therefore mainly influenced by the presence of micelles. Operating parameters, e.g. the transmembrane pressure and the concentration of surfactant, as well as the pure water flux of the membrane, have a marked influence on the performance of hydrophilic membranes, as shown in this investigation. A distinct difference between the interaction of a non-ionic surfactant with hydrophilic and hydrophobic membranes was observed. The hydrophobic membrane showed a flux reduction already at concentrations below the critical micelle concentration (CMC), whereas no flux reduction was observed for a hydrophilic membrane with the same nominal molecular weight cut-off, below the CMC. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
membranes, flux, retention, hydrophilic and hydrophobic, ultrafiltration, non-ionic surfactant
in
Desalination
volume
151
issue
1
pages
21 - 31
publisher
Elsevier
external identifiers
  • wos:000180370300003
  • scopus:0038527104
ISSN
1873-4464
DOI
10.1016/S0011-9164(02)00969-4
language
English
LU publication?
yes
id
4b46dff3-6b88-49e1-81f5-6528e990e795 (old id 320425)
date added to LUP
2007-08-27 12:35:42
date last changed
2018-01-07 06:20:12
@article{4b46dff3-6b88-49e1-81f5-6528e990e795,
  abstract     = {Surfactants are present in almost all aqueous solutions-either as additives for different purposes, or because they occur naturally. Because of the common occurrence of surfactants in process water it is important to know how they behave in membrane processes. Ultrafiltration membranes allow almost complete passage of surfactant monomers, but reject micelles almost completely. Concentration polarisation during ultrafiltration of surfactant solutions is therefore mainly influenced by the presence of micelles. Operating parameters, e.g. the transmembrane pressure and the concentration of surfactant, as well as the pure water flux of the membrane, have a marked influence on the performance of hydrophilic membranes, as shown in this investigation. A distinct difference between the interaction of a non-ionic surfactant with hydrophilic and hydrophobic membranes was observed. The hydrophobic membrane showed a flux reduction already at concentrations below the critical micelle concentration (CMC), whereas no flux reduction was observed for a hydrophilic membrane with the same nominal molecular weight cut-off, below the CMC.},
  author       = {Byhlin, Henric and Jönsson, Ann-Sofi},
  issn         = {1873-4464},
  keyword      = {membranes,flux,retention,hydrophilic and hydrophobic,ultrafiltration,non-ionic surfactant},
  language     = {eng},
  number       = {1},
  pages        = {21--31},
  publisher    = {Elsevier},
  series       = {Desalination},
  title        = {Influence of adsorption and concentration polarisation on membrane performance during ultrafiltration of a non-ionic surfactant},
  url          = {http://dx.doi.org/10.1016/S0011-9164(02)00969-4},
  volume       = {151},
  year         = {2003},
}