Membrane and Water Treatment

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Study of enhanced physical and pervaporation properties in composite membrane

  • RajiniKanth, Vanarch (Department of Physics, College of Science, Engineering and Technology, University of South Africa) ;
  • Ravindra, Sakey (Department of Physics, College of Science, Engineering and Technology, University of South Africa) ;
  • Madalageri, Priya M (Department of Physics, College of Science, Engineering and Technology, University of South Africa) ;
  • Kajjari, Praveen B. (Department of Chemistry, Karnatak University) ;
  • Mulaba-Bafubiandi, Antoine F (Department of Extraction Metallurgy, Doornfontein Campus, Faculty of Engineering and the Built Environment, University of Johannesburg)
  • Received : 2016.03.21
  • Accepted : 2017.05.25
  • Published : 2017.09.25
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Abstract

Novel mixed matrix membranes of Sodium Alginate (NaAlg) were developed by the incorporation ofunmodified, modified Phosphomolybdic acid (PMA) then cross-linked with glutaraldehyde externally. These membranes were prepared by the solution casting technique. Pervaporation (PV) experiments have been performed with pure NaAlg, unmodified NaAlg-PMA5, NaAlg-PMA10, modified NaAlg-mPMA5, and NaAlg-mPMA10 (wt. % of PMA 5 and 10) at 30, 40 and $50^{\circ}C$, to separate water-isopropanol feed mixtures containing 10-30 wt. % of water. Pervaporation results of NaAlg-mPMA10 produced a highest separation factor of 9028 with a flux of $0.269kg/m^2.h$ for 10 wt. % of water containing feed mixture. Both separation factor and flux for water increased significantly with increasing content of mPMA into NaAlg; a significant improvement in PV performance was observed for NaAlg-mPMA5 and NaAlg-mPMA10 membranes when compared to pure NaAlg& PMA-5, PMA-10 membrane.

Keywords

References

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