Crossflow microfiltration behaviour of a double-chain cationic surfactant dispersion in water—I. The effect of process and membrane characteristics on permeate flux and surfactant rejection

1994 ◽  
Vol 49 (2) ◽  
pp. 271-283 ◽  
Author(s):  
G. Akay ◽  
R.J. Wakeman
Keyword(s):  
Cationic Surfactant ◽  
Permeate Flux ◽  
Double Chain ◽  
Crossflow Microfiltration

Improvement of microfiltration performance in water treatment: is critical flux a viable solution?

2000 ◽  
Vol 41 (10-11) ◽  
pp. 309-315 ◽  
Author(s):  
S. Vigneswaran ◽  
D.Y. Kwon ◽  
H.H. Ngo ◽  
J.Y. Hu
Keyword(s):  
Membrane Fouling ◽  
Particle Deposition ◽  
Material Balance ◽  
Transmembrane Pressure ◽  
Operational Mode ◽  
Permeate Flux ◽  
Critical Flux ◽  
Viable Solution ◽  
Crossflow Microfiltration

In this study, three definitions for critical flux were introduced based on the crossflow microfiltration (CFMF) experiments conducted under an operational mode of constant permeate flux. The critical flux based on material balance was calculated from the rate of particles deposition. The highest permeate flux results in no particle deposition being taken at the critical flux. The second definition was based on the increase in transmembrane pressure (TMP). The critical flux based on the TMP increase is the flux below which the membrane fouling does not occur. The third definition was based on the direct observation of particles deposition through microscope. Detailed experiments were conducted with synthetic suspension of different sizes of latex particles. Long term experiments conducted with polydispersed kaolin clay suspension indicated that the critical flux based on material balance concept is more realistic in field conditions.

Effects of backflushing conditions on permeate flux in membrane crossflow microfiltration of oil emulsion

Desalination ◽  
2000 ◽  
Vol 127 (2) ◽  
pp. 189-198 ◽  
Author(s):  
J. Cakl ◽  
I. Bauer ◽  
P. Doleček ◽  
P. Mikulášek
Keyword(s):  
Permeate Flux ◽  
Oil Emulsion ◽  
Crossflow Microfiltration

Unsteady-State Permeate Flux of Crossflow Microfiltration

1994 ◽  
Vol 29 (12) ◽  
pp. 1593-1608 ◽  
Author(s):  
DONG-JANG CHANG ◽  
SHYH-JYE HWANG
Keyword(s):  
Unsteady State ◽  
Permeate Flux ◽  
Crossflow Microfiltration
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