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Electric fields applied in the ultrafiltration process

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E L S E V I E R Desalination 138 (2001) 291

DESALINATION

www.elsevier.com/locate/desal

Electric fields applied in the ultrafiltration process

N. Mameri a, S.M. Oussedik b*, A. Khelifa b, D. Belhocine a, H. Ghrib a, H. Lounici a

~Laboratoire des Biotechnologies, Ecole Nationale Polytechnique d'Alger, 10 avenue Pasteur E1Harrach, Alger, Algeria Tel. +213 (2) 52-14-94; e-mail: nabil.mameri@mail.polymtl.ca

bLaboratoire d'Electrochimie et de Corrosion, Institut de Chimie lndustrielle, Universitd de Blida, Algeria Tel. +213 (3) 43-36-31; Fax +213 (3) 43-11-64; e-mail: oussedik_mebroulc@yahoo.fr

Received 5 March 2001; accepted 20 March 2001

Abstract

Concentration polarisation is one of the main limitations of permeate flux through membranes. A conventional crossflow ultrafillration apparatus was modified by the inclusion of electrodes which permitted an electric field to be produced across the ultrafiltration membrane. This study examined the impact of operating parameters on fouling including flux, velocity, transmembrane pressure and electric field. Studies of the EF-UR process with bovine serum albumin (BSA) in the range of 1-5 g/1 demonstrated a 25-50% increase of the flux permeate compared to the case of 0 electric field.

Keywords: Ultrafiltration; Electro-ultrafiltration; Fouling electric field; Bovine serum albumin

*Corresponding author.

Presented at the European Conference on Desalination and the Environment: Water Shortage, Lemesos, Cyprus, 28-31 May 2001.

0011-9164/01/$- See front matter © 2001 Elsevier Science B.V. All rights reserved

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