Membrane and Water Treatment

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A review of nanomaterials based membranes for removal of contaminants from polluted waters

  • Amin, Muhammad T. (Alamoudi Water Research Chair, King Saud University) ;
  • Alazba, Abdulrahman A. (Alamoudi Water Research Chair, King Saud University)
  • Received : 2014.01.14
  • Accepted : 2014.05.12
  • Published : 2014.04.25
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Abstract

Safe water has becoming a competitive resource in many parts of the world due to increasing population, prolonged droughts, climate change etc. The development of economical and stable materials and methods for providing the fresh water in adequate amounts is the need of the water industry. Nanomaterials have unique characteristics e.g., large surface areas, size, shape, and dimensions etc. that make them particularly attractive for removing various contaminants from polluted waters. Nanotechnology based multifunctional and highly efficient membrane processes are providing affordable solutions in the new era that do not rely on large infrastructures or centralizes systems. The objective of the current study is to review the possible applications of the membrane based nanomaterials/composites for the removal of various contaminations from polluted waters. The article will briefly overview the availability and practice of different nanomaterials based membranes for removal of bacteria and viruses, organic compounds and inorganic solutes etc. present in surface water, ground water, seawater and/or industrial water. Finally, recommendations are made based on the current practices of nanofiltration membranes in water industry for a stand-alone membrane filtration system in removing various types of contaminants from polluted waters.

Keywords

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