Pressure-Dependent Permeate Flux in Ultra- and Microfiltration
Publication: Journal of Environmental Engineering
Volume 126, Issue 7
Abstract
The effect of applied pressure on the permeate flux in cross-flow ultrafiltration (UF) and microfiltration (MF) was investigated both theoretically and experimentally. In UF and MF processes, the permeate fluxes are controlled by concentration polarization and cake formation over the membrane surface. As a better understanding of concentration polarization and cake formation becomes available, the permeate flux under any pressure can be theoretically predicted. Experiments were conducted in a ceramic tubular cross-flow filter with silica colloids of a narrow size distribution (model colloids). The pressure-dependent flux of the model colloidal suspension in cross-flow filtration was investigated under various experimental conditions. The experimental measurements were compared with the theoretical predictions, and the results showed that the pressure-dependent permeate flux in cross-flow filtration can be adequately predicted. Furthermore, theory and experiments demonstrated that the performance and operating state of UF and MF could be well characterized by the so-called “characteristic pressure” of the process.
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References
1.
Blatt, W. F., Dravid, A., Michaels, A. S., and Nelson, L. ( 1970). “Solution polarization and cake formation in membrane ultrafiltration, causes, consequences, and control techniques.” Membrane science and technology, J. E. Flinn, ed., Plenum, New York, 47–97.
2.
Braghetta, A., DiGiano, F. A., and Ball, W. P. (1997). “Nanofiltration of natural organic matter: pH and ionic strength effects.”J. Envir. Engrg., ASCE, 123(7), 628–641.
3.
Chakravorty, B., and Layson, A. (1997). “Ideal feed pretreatment for reverse osmosis by continuous microfiltration.” Desalination, 110, 143–150.
4.
Davis, R. H. (1992). “Modeling of fouling of crossflow microfiltration membranes.” Sep. and Purif. Methods, 21(2), 75–126.
5.
De S., Bhattacharjee, S., Sharma, A., and Bhattacharya, P. K. (1997). “Generalized integral and similarity solutions of the concentration profile for osmotic pressure controlled ultrafiltration.” J. Membrane Sci., 130, 99–121.
6.
Elimelech, M., and Bhattacharjee, S. (1998). “A novel approach for modeling concentration polarization in crossflow membrane filtration based on the equivalence of osmotic-pressure model and filtration theory.” J. Membrane Sci., 145, 223–241.
7.
Ergas, S. J., and McGrath, M. S. (1997). “Membrane bioreactor for control of volatile organic compound emissions.”J. Envir. Engrg., ASCE, 123(6), 593–598.
8.
Faibish, R. S., Elimelech, M., and Cohen, Y. (1998). “Effect of interparticle electrostatic double layer interactions on permeate flux decline in crossflow membrane filtration of colloidal suspensions: An experimental investigation.” J. Colloid and Interface Sci., 204, 77–86.
9.
Hong, S., Faibish, R. S., and Elimelech, M. (1997). “Kinetics of permeate flux decline in crossflow membrane filtration of colloidal suspensions.” J. Colloid and Interface Sci., 196, 267–277.
10.
Jacangelo, J. G., Chellam, S., and Trussell, R. R. (1998). “The membrane treatment.” Civ. Engrg., ASCE, 68(9), 42–45.
11.
Jacangelo, J. G., Laine, J. M., Cummings, E. W., and Adham, S. S. (1995). “UF with pretreatment for removing DBP precursors.” J. AWWA, 87(3), 100–112.
12.
Probstein, R. F., Shen, J. S., and Leung, W. F. (1978). “Ultrafiltration of macromolecular solutions at high polarization in laminar channel flow.” Desalination, 24, 1–16.
13.
Sethi, S., and Wiesner, M. R. (1995). “Performance and cost modeling of ultrafiltration.”J. Envir. Engrg., ASCE, 121(12), 874–883.
14.
Song, L. (1998). “A new model for the calculation of the limiting flux in ultrafiltration.” J. Membrane Sci., 144, 173.
15.
Song, L. (1999). “Permeate flux in crossflow ultrafiltration under intermediate pressures.” J. Colloid and Interface Sci., 214(2), 251–263.
16.
Song, L., and Elimelech, M. (1995). “Theory of concentration polarization in crossflow filtration.” Trans. Faraday Soc., 91(19), 3389–3398.
17.
Takizawa, S., Fujita, K., and Soo, K. H. (1996). “Membrane fouling decrease by microfiltration with ozone scrubbing.” Desalination, 106, 423–426.
18.
Trettin, D. R., and Doshi, M. R. (1980). “Limiting flux in ultrafiltration of macromolecular solution.” Chem. Eng. Commun., 4, 507–522.
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Received: Jun 8, 1999
Published online: Jul 1, 2000
Published in print: Jul 2000
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