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Contact angles of ultrafiltration membranes and their possible correlation to membrane performance

Gekas, Vassilis LU ; Persson, Kenneth M LU ; Wahlgren, Marie LU and Sivik, Björn LU (1992) In Journal of Membrane Science 72(3). p.293-302
Abstract (Swedish)
The captive bubble method was used to describe the wetting characteristics of a number of commercial ultrafiltration (UF) membranes. The membranes belonged to one of two homologous (same material, different cut-off) series made by the same manufacturer. One series was made of polysulphone and the other one of cellulose triacetate. The porosimetric characteristics of the membranes have also been measured. The combined data were used to explain the fouling behaviour of the membranes upon ultrafiltration of solutions containing dextran, whey protein concentrate and silicate sols. The cellulose triacetate series is characterized by lower receding contact angle and smaller contact angle hysteresis and shows better flux behaviour (permeate flux... (More)
The captive bubble method was used to describe the wetting characteristics of a number of commercial ultrafiltration (UF) membranes. The membranes belonged to one of two homologous (same material, different cut-off) series made by the same manufacturer. One series was made of polysulphone and the other one of cellulose triacetate. The porosimetric characteristics of the membranes have also been measured. The combined data were used to explain the fouling behaviour of the membranes upon ultrafiltration of solutions containing dextran, whey protein concentrate and silicate sols. The cellulose triacetate series is characterized by lower receding contact angle and smaller contact angle hysteresis and shows better flux behaviour (permeate flux during UF and pure water flux recovery at the end of UF) than the polysulphone series. Within the same series the mean permeability pore size shows a better correlation with membrane flux behaviour than with contact angle hysteresis. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Membrane Science
volume
72
issue
3
pages
10 pages
publisher
Elsevier
external identifiers
  • scopus:0026617444
ISSN
0376-7388
DOI
10.1016/0376-7388(92)85056-O
language
English
LU publication?
yes
id
0404f758-9e00-4b07-955a-08cfe72aca73
date added to LUP
2016-04-15 19:21:17
date last changed
2017-11-09 16:12:34
@article{0404f758-9e00-4b07-955a-08cfe72aca73,
  abstract     = {The captive bubble method was used to describe the wetting characteristics of a number of commercial ultrafiltration (UF) membranes. The membranes belonged to one of two homologous (same material, different cut-off) series made by the same manufacturer. One series was made of polysulphone and the other one of cellulose triacetate. The porosimetric characteristics of the membranes have also been measured. The combined data were used to explain the fouling behaviour of the membranes upon ultrafiltration of solutions containing dextran, whey protein concentrate and silicate sols. The cellulose triacetate series is characterized by lower receding contact angle and smaller contact angle hysteresis and shows better flux behaviour (permeate flux during UF and pure water flux recovery at the end of UF) than the polysulphone series. Within the same series the mean permeability pore size shows a better correlation with membrane flux behaviour than with contact angle hysteresis.},
  author       = {Gekas, Vassilis and Persson, Kenneth M and Wahlgren, Marie and Sivik, Björn},
  issn         = {0376-7388},
  language     = {eng},
  number       = {3},
  pages        = {293--302},
  publisher    = {Elsevier},
  series       = {Journal of Membrane Science},
  title        = {Contact angles of ultrafiltration membranes and their possible correlation to membrane performance},
  url          = {http://dx.doi.org/10.1016/0376-7388(92)85056-O},
  volume       = {72},
  year         = {1992},
}