International Journal of Environmental Sciences

Volume 3 Issue 6 2013- June 2013    Pages: 2139-2150  <<Previous    Next>>

Performances of nanofiltration and reverse osmosis membranes in desalination of M’nasra Brackish water: Comparison under running conditions

Author Information:

El Azhar. F1, Elamrani. M2, Taky. M3, Hafsi. M4, Elmidaoui. A5

1,2,3,4- Laboratory of Separation Processes, Department of Chemistry, Faculty of Sciences Ibn Tofail University, P. O. Box 1246, Kénitra 14000 – Morocco.

5- Office National de l'Eau Potable (ONEP), Rabat, Morocco

ABSTRACT

Like many countries in the world, Morocco is facing problems in the supply of water due to an increasing demand and decrease of conventional resources. To solve the problem of water shortage, Morocco proceeded since a long time to use other non conventional water resources such as wastewater reuse or desalinating water. The desalination which was limited to south and coasts grew more and more to the central regions. The salinity content of the brackish water in many regions of Morocco largely exceeds the acceptable standards. In the M'nasra (west citie of Morocco) where the work is conduced, the salinity of brackish water is usually exceeds the Morrocan standards especially the content of chloride and sodium. The contamination in this region is attributed essentially to the saline intrusion The purpose of the current study is to investigate the performances of the nanofiltration for desalination of brackish groundwater of M'nasra and to compare these results with reverse osmosis. Desalination monitoring was performed by determining performances parameters, permeability, salinity, chloride and sodium levels. For this many configurations was tested. 
According the results, the NF membranes might be able to produce a satisfactory quality water with high permeate fluxes, compared to Reverse osmosis.

Keywords: Reverse osmosis, Nanofiltration, Brackish water, WHO, Configurations.

DOI:10.6088/ijes.2013030600030

© 2013 Copyright by the authors, licensee Integrated Publishing Association.This is an open access article distributed under the Creative Commons Attribution License (3.0) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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