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Water Supply Vol 3 No 5 pp 361–365 © IWA Publishing 2003

Coagulation-adsorption-ultrafiltration for wastewater treatment and reuse

D. Abdessemed*, G. Nezzal** and R. Ben Aim***

*Faculté de Génie Mécanique- Génie des Procédés, Laboratoire de Génie des Procédés - Environnement, Université des Sciences et de la Technologie H. B., B.P.32 El Alia 16111, Bab Ezzouar, Alger, Algerie (E-mail: adjamal @ yahoo.com)
**Faculté de Génie Mécanique- Génie des Procédés, Laboratoire de Génie des Procédés - Environnement, Université des Sciences et de la Technologie H. B., B.P.32 El Alia 16111, Bab Ezzouar, Alger, Algerie
***Institut National des Sciences Appliquées, GPI/LIPE, 135 Avenue de Rangueil, 31077 - Toulouse Cedex 4 - France (E-mail: benaim @ insa-tlse.fr)


ABSTRACT
We considered the treatment of domestic wastewater by coagulation–adsorption–ultrafiltration, and a test of adsorption like pre-treatment to the membrane as an alternative for wastewater reclamation and reuse. The performances of two inorganic tubular membranes (M2 and M5 CARBOSEP with 15,000 Da and 10,000 Da MWCO) were studied. Powdered activated carbon was used as adsorbent agent and FeCl3 as a coagulant. Coupling adsorption and ultrafiltration resulted in satisfactory results: the efficiency of COD removal was increased by using PAC compared with results obtained when using only UF membranes.

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