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METHOD DEVELOPMENT FOR FLOW ADSORPTION AND REMOVAL OF LEAD AND COPPER IN CONTAMINATED WATER USING ELECTROSPUN NANOFIBERS OF CHITOSAN BLEND
2019/11/27 21:28:24 admin
This study reports column flow adsorption capacity for Pb and Cu of 56.54 mgg(-1) and 5.75 mgg(-1), respectively, using electrospun nanofibers (70-264 nm) of chitosan: polyacrylamide blend ratio 77:23 with glutaraldehyde cross-linking. The Freundlich isotherms gave a better fit than Langmuir. The fibers were applied in contaminated pond water and pulp waste-water, for removal of Pb and Cu, with removal efficiencies of 100% (Pb) and 98.6% (Cu) in pond water; and 97.2% (Pb) and 99.5% (Cu) in wastewater. The regeneration efficiencies (recovery %) were 64% (Pb) and 89% (Cu) in pond; 72% (Pb) and 90% (Cu) for pulp, respectively, using an adsorbent mass of 0.05 g.
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