Advanced

Fouling during ultrafiltration of a low molecular weight hydrophobic solute

Jönsson, Ann-Sofi LU (1998) In Separation Science and Technology 33(4). p.503-516
Abstract
The influence of a small hydrophobic solute (octanoic acid) on the flux reduction and the flux recovery of two ultrafiltration membranes was studied in this investigation. The two membranes were made of polyether sulfone and regenerated cellulose, both with a nominal molecular weight cutoff of 20,000 Da. The concentration of the octanoic acid solution was found to have a significant influence on not only the extent of flux reduction during treatment of the octanoic acid solution, but also on the flux recovery when the membrane was rinsed with deionized water. After treatment of the octanoic acid solution, a pure water flux increase of 1.5 times the pure water flux of the new, unused polyether sulfone membrane was observed. Different causes... (More)
The influence of a small hydrophobic solute (octanoic acid) on the flux reduction and the flux recovery of two ultrafiltration membranes was studied in this investigation. The two membranes were made of polyether sulfone and regenerated cellulose, both with a nominal molecular weight cutoff of 20,000 Da. The concentration of the octanoic acid solution was found to have a significant influence on not only the extent of flux reduction during treatment of the octanoic acid solution, but also on the flux recovery when the membrane was rinsed with deionized water. After treatment of the octanoic acid solution, a pure water flux increase of 1.5 times the pure water flux of the new, unused polyether sulfone membrane was observed. Different causes of the increased pure water flux after treatment of the octanoic acid solution are presented, and the serious consequences this apparent positive effect can cause in industrial applications are discussed. (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
fouling, ultrafiltration, adsorption, low molecular weight solute, hydrophobic interactions
in
Separation Science and Technology
volume
33
issue
4
pages
503 - 516
publisher
Marcel Dekker
external identifiers
  • wos:000072485800004
  • scopus:0343690720
ISSN
0149-6395
DOI
10.1080/01496399808544993
language
English
LU publication?
yes
id
a492baee-0083-4b10-9342-4c69dc668eed (old id 3915716)
date added to LUP
2013-07-02 10:54:37
date last changed
2017-01-01 07:12:51
@article{a492baee-0083-4b10-9342-4c69dc668eed,
  abstract     = {The influence of a small hydrophobic solute (octanoic acid) on the flux reduction and the flux recovery of two ultrafiltration membranes was studied in this investigation. The two membranes were made of polyether sulfone and regenerated cellulose, both with a nominal molecular weight cutoff of 20,000 Da. The concentration of the octanoic acid solution was found to have a significant influence on not only the extent of flux reduction during treatment of the octanoic acid solution, but also on the flux recovery when the membrane was rinsed with deionized water. After treatment of the octanoic acid solution, a pure water flux increase of 1.5 times the pure water flux of the new, unused polyether sulfone membrane was observed. Different causes of the increased pure water flux after treatment of the octanoic acid solution are presented, and the serious consequences this apparent positive effect can cause in industrial applications are discussed.},
  author       = {Jönsson, Ann-Sofi},
  issn         = {0149-6395},
  keyword      = {fouling,ultrafiltration,adsorption,low molecular weight solute,hydrophobic interactions},
  language     = {eng},
  number       = {4},
  pages        = {503--516},
  publisher    = {Marcel Dekker},
  series       = {Separation Science and Technology},
  title        = {Fouling during ultrafiltration of a low molecular weight hydrophobic solute},
  url          = {http://dx.doi.org/10.1080/01496399808544993},
  volume       = {33},
  year         = {1998},
}