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Titolo:
Three-dimensional simulation of the deposition of multi-dispersed charged particles and prediction of resulting flux during cross-flow microfiltration
Autore:
Yoon, SH; Lee, CH; Kim, KJ; Fane, AG;
Indirizzi:
Seoul Natl Univ, Dept Chem Technol, Kwanak Gu, Seoul 151742, South Korea Seoul Natl Univ Seoul South Korea 151742 k Gu, Seoul 151742, South Korea Univ New S Wales, UNESCO, Ctr Membrane Sci & Technol, Sydney, NSW 2052, Australia Univ New S Wales Sydney NSW Australia 2052 l, Sydney, NSW 2052, Australia
Titolo Testata:
JOURNAL OF MEMBRANE SCIENCE
fascicolo: 1-2, volume: 161, anno: 1999,
pagine: 7 - 20
SICI:
0376-7388(19990801)161:1-2<7:TSOTDO>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
LATERAL MIGRATION; RANDOM PACKING; LAMINAR-FLOW; MEMBRANE FILTRATION; ULTRAFILTRATION; SPHERES; MODEL; SUSPENSIONS; SURFACE; SIZE;
Keywords:
microfiltration; theory; fouling; microporous and porous membranes;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
35
Recensione:
Indirizzi per estratti:
Indirizzo: Lee, CH Seoul Natl Univ, Dept Chem Technol, Kwanak Gu, Seoul 151742, SouthKorea Seoul Natl Univ Seoul South Korea 151742 oul 151742, South Korea
Citazione:
S.H. Yoon et al., "Three-dimensional simulation of the deposition of multi-dispersed charged particles and prediction of resulting flux during cross-flow microfiltration", J MEMBR SCI, 161(1-2), 1999, pp. 7-20

Abstract

Three-dimensional simulation was performed to predict the flux during the microfiltration of multi-dispersed iron oxide particles. The rate of particle deposition on the membrane surface was considered with the focus on particle transport mechanisms as a function of particle size. It was estimated that for the conditions of this study charge repulsion is the most important mechanism reducing cake formation. The voidage of the cake layer was estimated to be 0.39 for mono-dispersed particles and was decreased to 0.33 with moderate multi-dispersity. Taking pore blocking and cake layer formation in a random manner into consideration, flux vs. time curves could be simulated for any concentration of slurry. The simulated flux declines compare well with the experimental results. (C) 1999 Elsevier Science B.V. All rightsreserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 07/08/20 alle ore 00:53:17