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Membranes in Desalination and Water Treatment

Published online by Cambridge University Press:  31 January 2011

Nataly Vainrot ,
Moris S. Eisen  and
Raphael Semiat
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Abstract

Membrane techniques for water treatment have been growing significantly for the last decade. Reverse osmosis, for example, is the leading seawater desalination technique. Nanofiltration membranes are used more and more for hardness removal and even to desalinate slightly polluted waters. Ultrafiltration and microfiltration membranes are used extensively mainly as membrane bioreactors in wastewater recovery. While this trend is growing, the membranes still may be improved significantly, based on new materials designed to increase the flux of water through the membranes at reduced pressures while maintaining or even improving the rejection of dissolved matter or suspended matter. Better membranes will reduce energy consumption while maintaining affordable separation properties.

Type
Research Article
Information
MRS Bulletin , Volume 33 , Issue 1: Advancing Materials and Technologies for Water Purification , January 2008 , pp. 16 - 20
Copyright
Copyright © Materials Research Society 2008

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