• P-ISSN 0974-6846 E-ISSN 0974-5645

Indian Journal of Science and Technology


Indian Journal of Science and Technology

Year: 2010, Volume: 3, Issue: 6, Pages: 663-666

Original Article

Metal ion removal from the aqueous feed using PVDF/PS blend ultrafiltration membranes


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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