FOULING OF ULTRAFILTRATION MEMBRANES DURING TREATMENT OF CTMP SCREW PRESS FILTRATES

Authors
RAMAMURTHY P POOLE R DORICA JG
Citation
P. Ramamurthy et al., FOULING OF ULTRAFILTRATION MEMBRANES DURING TREATMENT OF CTMP SCREW PRESS FILTRATES, Journal of pulp and paper science, 21(2), 1995, pp. 50-54
Citations number
9
Categorie Soggetti
Materials Science, Paper & Wood
Journal title
Journal of pulp and paper science → ACNP
ISSN journal
08266220
Volume
21
Issue
2
Year of publication
1995
Pages
50 - 54
Database
ISI
SICI code
0826-6220(1995)21:2<50:FOUMDT>2.0.ZU;2-9
Abstract
The resistance offered by hydrophilic ultrafiltration (UF) membranes t o permeate flow was analyzed. At steady-state conditions, up to 45% of the total resistance was found to be due to surface fouling. In the o ptimum pressure range of 345-517 kPa (50-75 psig), operation at high t urbulence was found most effective in minimizing fouling and in mainta ining high permeate flux. Pulse-enhanced electro-UF increased the memb rane flux by about 20%. Transverse-flow UF technology was found to inh ibit the growth of the foulant layer.