Study of Atlantic Seawater Desalination
by Reverse Osmosis using a pilot plant
Etude du dessalement de l’eau de l’océan atlantique
par osmose inverse sur une installation pilote
F. El Azhar, N. Zouhri, S. Ait habzize, M. Taky, A. Elmidaoui*
Laboratory of Separation Processes, Department of Chemistry, Faculty of Science
University Ibn Tofail, B.P 1246, Kenitra 14000 –
* Corresponding author: E-mail: Azh80ar@yahoo.fr
Received: 04 June 2010; revised version accepted: 28 March 2011
The demand of fresh water is increasing twice as fast as population growth, while the natural resources remain invariable or in reduction. Otherwise, the needs of development make that the demand will be superior to resources. For this, new techniques of drinking water production implementation by using the desalination of seawater and waste water reuse becomes a necessity.
This work reports on desalination of seawater by Reverse Osmosis, using a pilot plant having two modules equipped with various spiral commercial membranes. To optimize the desalination operations, various configurations were tested: simple pass, double pass with one type or two types of membranes. The water parameters were followed as a function of the running conditions in order to follow the behavior of the tested membranes.
Keywords: Desalination; Membranes; Reverse osmosis; Salt rejection; Recovery rate; Pressure.