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Effect of flocculation on critical flux during crossflow microfiltration of bentonite suspensions

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journal contribution
posted on 02.06.2009, 08:58 by Kuhan Chellappah, Steve Tarleton, Richard J. Wakeman
The effectiveness of polymeric flocculant addition and hydrodynamics on increasing the critical permeation flux, Jcrit, during crossflow microfiltration of bentonite suspensions using a tubular ceramic membrane module was investigated. The investigation determined the effects of flocculant concentration on Jcrit at various crossflow velocities. The best filtration performance (highest Jcrit) was obtained at a flocculant dose of 500 mg kg-1 (mg of flocculant per kg of solids) and at a crossflow velocity of 1.71 m s-1. Particle size has been used as a parameter to fit the shear-induced hydrodynamic diffusion model to the experimental filtration data.

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Chemical Engineering

Citation

CHELLAPPAH, K., TARLETON, E.S. and WAKEMAN, R.J., 2008. Effect of flocculation on critical flux during crossflow microfiltration of bentonite suspensions. Separation Science and Technology, 43 (1), pp. 29-44

Publisher

© Taylor & Francis

Version

AM (Accepted Manuscript)

Publication date

2008

Notes

This article was published in the journal, Separation Science and Technology [© Taylor & Francis] and the definitive version is available at: http://dx.doi.org/10.1080/01496390701748752

ISSN

0149-6395;1520-5754

Language

en