Indian Journal of Science and Technology
Year: 2010, Volume: 3, Issue: 6, Pages: 663-666
K.H. Shobanaa and D. Mohanb*
a. Deparment of Physics, Saveetha Engineering College, Thandalam, Chennai- 602 105.
b. Membrane Laboratory, Department of Chemical Engineering, A.C.College of Technology, Anna University, Chennai- 600 025, India
[email protected] , [email protected]
Polyvinyledenefluoride-polystyrene (PVDF/PS) blend ultrafiltration membranes were prepared using phase inversion technique. Casting solutions were prepared with different compositions of poly (vinylidene fluoride) (PVDF) and polystyrene (PS) both in the presence and absence of the additive, poly (vinylpyrolidone) (PVP) using dimethylacetamide as solvent. The effects of compositions of PS and concentrations of PVP on shrinkage ratio, pure water flux and percentage of water content of the blend ultrafiltration membranes were studied. The application of the PVDF/PS blend membranes in separation of toxic heavy metal ions from aqueous streams was also attempted and the results are discussed.
Keywords: Ultrafiltration membrane, heavy metal separation.
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