Crossflow microfiltration of low concentration-nonliving yeast suspensions. Keskinler, B.; Yildiz, E.; Erhan, E.; Dogru, M.; Bayhan, Y.; and Akay, G. JOURNAL OF MEMBRANE SCIENCE, 233(1-2):59-69, 2004.
abstract   bibtex   
Crossflow microfiltration of low concentration-nonliving yeast suspension was studied and effects of transmembrane pressure drop (DeltaP), membrane pore size and crossflow velocity on the membrane fluxes have been investigated. Filtration mechanism was explained by various flux decline models such as standard, intermediate, complete blocking and cake filtration. It was shown that permeate flux decay could be divided into three distinctive regions such as constant, rapid flux decay and slow flux decay periods by using relations of J(t)-t, t/V-V and V-t on the same plot. It was concluded that flux decline model fit to intermediate blocking model at the beginning of the filtration and then classical cake filtration became dominant filtration mechanism. It was found that specific cake resistance increased with increasing DeltaP. Compressibility coefficient (n) was calculated to be 1 and 0.39 for crossflow and dead-end filtration modes, respectively. Steady-state permeate fluxes increased with membrane pore size and crossflow velocity, and decreased with increasing yeast concentration. It was determined that pseudo-gel concentration on the membrane surface was 45 all and it was independent from crossflow velocity and membrane pore size. (C) 2004 Elsevier B.V. All rights reserved.
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 title = {Crossflow microfiltration of low concentration-nonliving yeast suspensions},
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 year = {2004},
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 pages = {59-69},
 volume = {233},
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 abstract = {Crossflow microfiltration of low concentration-nonliving yeast
suspension was studied and effects of transmembrane pressure drop
(DeltaP), membrane pore size and crossflow velocity on the membrane
fluxes have been investigated. Filtration mechanism was explained by
various flux decline models such as standard, intermediate, complete
blocking and cake filtration. It was shown that permeate flux decay
could be divided into three distinctive regions such as constant, rapid
flux decay and slow flux decay periods by using relations of J(t)-t,
t/V-V and V-t on the same plot. It was concluded that flux decline
model fit to intermediate blocking model at the beginning of the
filtration and then classical cake filtration became dominant
filtration mechanism. It was found that specific cake resistance
increased with increasing DeltaP. Compressibility coefficient (n) was
calculated to be 1 and 0.39 for crossflow and dead-end filtration
modes, respectively. Steady-state permeate fluxes increased with
membrane pore size and crossflow velocity, and decreased with
increasing yeast concentration. It was determined that pseudo-gel
concentration on the membrane surface was 45 all and it was independent
from crossflow velocity and membrane pore size. (C) 2004 Elsevier B.V.
All rights reserved.},
 bibtype = {article},
 author = {Keskinler, B and Yildiz, E and Erhan, E and Dogru, M and Bayhan, Y and Akay, G},
 journal = {JOURNAL OF MEMBRANE SCIENCE},
 number = {1-2}
}
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