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Special Topics & Reviews in Porous Media: An International Journal
ESCI SJR: 0.277 SNIP: 0.52 CiteScore™: 1.3

ISSN Print: 2151-4798
ISSN Online: 2151-562X

Special Topics & Reviews in Porous Media: An International Journal

DOI: 10.1615/SpecialTopicsRevPorousMedia.v3.i3.100
pages 283-288

CRITICAL AND LIMITING FLUXES IN ULTRAFILTRATION USING A POROUS POLYMERIC TUBULAR MEMBRANE

Abdellah Beicha
University of Jijel, Department of Industrial Chemistry, PB. 98, Ouled Aissa, 18000 Jijel, Algeria
Radia Zaamouche
University of Jijel, Department of Industrial Chemistry, PB. 98, Ouled Aissa, 18000 Jijel, Algeria
Nik Meriam Sulaiman
University of Malaya, Chemical Engineering Department, 50603, Kuala Lumpur, Malaysia

ABSTRACT

A new procedure for calculating the critical flux was presented. Both the critical and limiting fluxes depend on the crossflow velocity and the bulk concentration. For bulk concentrations near the critical concentration, the critical flux can be estimated directly. However, for bulk concentrations beyond the critical value, the critical flux value depends strongly on the concentration polarization. The permeate fluxes increase linearly with TMP for every velocity, which then level off to a stationary flux value. The constant flux obtained shows increments with increasing velocity.

REFERENCES

  1. Bacchin, P. , A possible link between critical and limiting flux for colloidal systems: Consideration of critical deposit formation along a membrane.

  2. Beicha, A. and Zaamouche, R. , Limiting flux prediction during tubular ultrafiltration.

  3. Beicha, A., Zaamouche, R., and Sulaiman, N. M. , Dynamic ultrafiltration model based on concentration polarization-gel layer interplay.

  4. Clech, P.L., Jefferson, B., Chang, I. S., and Judd, S. J. , Critical flux determination by the flux-step method in submerged membrane bioreactor.

  5. Defrance, L. and Jaffrin, M. Y. , Comparison between filtrations at fixed trans membrane pressure and fixed permeate flux: Application to a membrane bioreactor used for wastewater treatment.

  6. Kwon, D. Y., Vigneswaran, S., Fane, A. G., and Aim, R. B. , Experimental determination of critical flux in crossflow microfiltration.

  7. Li, H., Fane, A. G., Coster, H. G. L., and Vigneswaran,'S., Observation of deposition and removal behaviour of submicron bacteria on the membrane surface during crossflow microfiltration.

  8. Sulaiman, M. Z., Sulaiman, N. M., and Beicha, A. , Prediction of dynamic permeate flux during cross-flow ultrafiltration of polyethylene glycol using concentration polarization-gel layer model.

  9. Zaamouche, R., Beicha, A., and Sulaiman, N. M. , Cross-flow ultrafiltration model based on concentration polarization.


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