Predicting the Filtration Performances of Ultrafiltration Ceramic Membranes by Streaming Potentials Measurements

 

N. Saffaj*1, H. Loukili2, S. Alami Younssi2, A. Albizane2, Z. Barhon2, R. Mamouni3

1 Faculté Polydisciplinaire Ouarzazate, Université d’Agadir                                                                                                                                                                                        

2 Laboratoire des Matériaux Catalyse et Environnement, Faculté des Sciences et Techniques Mohammedia

B.P 146 Mohammedia. Maroc

3Laboratoire de Chimie Bio-Organique Appliquée (LCBA) Faculté des Sciences Agadir, BP : 8106, 80000, Agadir, Maroc

* Corresponding author. E-mail: saffaj@gmail.com

Received: 01 June 2006; revised version accepted: 01 November 2006

Abstract

     In the case of ceramic membrane with pore diameter lower than 10nm, it was shown that the electrostatic interaction between charged particles and membrane surface charge is an important parameter for explaining the membrane selectivity. So, a multilayer ceramic ultrafiltration membrane consisting of natural clay support, a zirconia intermediate layer and ZnAl2O4-TiO2 filtering layer has been studied. Firstly, study of surface charge measurement has been preformed on streaming potential determination. Secondly, the rejection rate and selectivity of salt solution has been determined. A correlation between all the results has been established.

 

Keywords: Multilayer membrane; Streaming potential; Selectivity; Ultrafiltration.

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