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Membrane Water Treatment   Volume 8, Number 5, September 2017, pages 483-498
DOI: https://doi.org/10.12989/mwt.2017.8.5.483
 
Study of enhanced physical and pervaporation properties in composite membrane
Vanarch RajiniKanth, Sakey Ravindra, Priya M Madalageri, Praveen B. Kajjari and Antoine F Mulaba-Bafubiandi

 
Abstract     [Buy Article]
    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 \'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 0.269 kg/m2.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.
 
Key Words
    pervaporation; flux; azeotrope;phosphomolybdic acid; water-isopropanol mixture; sodium alginate; membrane
 
Address
Vanarch RajiniKanth, Sakey Ravindra and Priya M Madalageri : Department of Physics, College of Science, Engineering and Technology, University of South Africa, Johannesburg -1709, South Africa
Praveen B. Kajjari : Department of Extraction Metallurgy, Doornfontein Campus, Faculty of Engineering and the Built Environment, University of Johannesburg, P.O Box 17011, Johannesburg-2028, South Africa
Antoine F Mulaba-Bafubiandi : Department of Chemistry, Karnatak University, Dharwad 580 003, India
 

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