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Influence of membrane material and corrugation and process conditions on emulsion microfiltration

Lookup NU author(s): Emeritus Professor Keith Scott

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Abstract

An investigation of membrane materials for the cross-flow microfiltration of water-in-oil emulsions is reported. The membrane used were, PTFE, PVDF and nitrocellulose. The emulsion considered was water with kerosene using Span 80 as surfactant. The effects of operating conditions: cross-flow velocity, trans-membrane pressure, temperature and emulsion concentration is described and analysed in terms of a fouling index for filtration. An increase in trans-membrane pressure, temperature and flow rate of emulsion all result in an increase in membrane flux. Membrane flux falls initially with time under most conditions of operation, except at a temperature of 50 °C, where flux are stable. The use of corrugated membranes is shown to produce a large increase in flux rate in comparison to the use of flat membranes under the same conditions and cross-flow velocities. © 2007 Elsevier B.V. All rights reserved.

Publication metadata

Author(s): Hu B, Scott K

Publication type: Article

Publication status: Published

Journal: Journal of Membrane Science

Year: 2007

Volume: 294

Issue: 1-2

Pages: 30-39

ISSN (print): 0376-7388

ISSN (electronic): 1873-3123

Publisher: Elsevier

URL: http://dx.doi.org/10.1016/j.memsci.2007.02.002

DOI: 10.1016/j.memsci.2007.02.002

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