Removal of heavy metal ions from aquatic solutions by membrane chromatography

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dc.contributor.authorDenizli, A
dc.contributor.authorSay, R
dc.contributor.authorArica, Y
dc.date.accessioned2020-06-25T17:34:40Z
dc.date.available2020-06-25T17:34:40Z
dc.date.issued2000
dc.departmentKırıkkale Üniversitesi
dc.description.abstractPolyvinylalcohol membranes were prepared by a solvent casting technique. Metal-complexation ligand, i.e. monochlorotriazinyl-dye Cibacron Blue F3GA was then attached. These membranes with a high water content of 119%, and containing 8.7 mmol Cibacron Blue F3GA/m(2) were used in the adsorption/stripping of some selected heavy metal ions [Cu(II), Hg(II), Pb(II) and Cd(II)] from aquatic solutions containing varying initial concentration of metal ions. Adsorption rates were very high, and equilibrium was achieved in about 10 min. The non-specific adsorption of heavy metal ions on the plain membranes was low [0.63 mmol/m(2) for Cu(II), 0.75 mmol/m(2) for Hg(II), 0.94 mmol/m(2) for Pb(II) and 1.22 mmol/m(2) for Cd(II)]. The maximum adsorptions of heavy metal ions onto the Cibacron Blue F3GA-attached affinity membranes for non-competitive conditions were 16.9 mmol/m(2) for Hg(II), 19.2 mmol/m(2) for Cu(II), 25.8 mmol/m(2) for Pb(II), 32.4 mmol/m(2) for Cd(II). The observed order in adsorption was found to be Cd(II) > Pb(II) > Cu(II) > Hg(II). Different behavior was observed for competitive adsorption. The order of affinity was Cu(II) > Cd(II) > Hg(II) > Pb(II). Regeneration of polyvinylalcohol membranes was done by using 0.1 M HNO3 in 30 min. Heavy metal ions could be repeatedly adsorbed and stripped without significant decrease in adsorption capacity. The experimental data of adsorption from solutions containing metal ions were found to correlate well with Langmuir isotherm equation. (C) 2000 Elsevier Science B.V. All rights reserved.en_US
dc.identifier.citationclosedAccessen_US
dc.identifier.doi10.1016/S1383-5866(00)00203-3
dc.identifier.endpage190en_US
dc.identifier.issn1383-5866
dc.identifier.issue1-2en_US
dc.identifier.scopus2-s2.0-0034325124
dc.identifier.scopusqualityQ1
dc.identifier.startpage181en_US
dc.identifier.urihttps://doi.org/10.1016/S1383-5866(00)00203-3
dc.identifier.urihttps://hdl.handle.net/20.500.12587/2837
dc.identifier.volume21en_US
dc.identifier.wosWOS:000165473400016
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Science Bven_US
dc.relation.ispartofSeparation And Purification Technology
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectaffinity membranesen_US
dc.subjectmicroporousen_US
dc.subjectporous membranesen_US
dc.subjectwater treatmenten_US
dc.subjectpovinyl alcoholen_US
dc.subjectCibacron Blue F3GAen_US
dc.subjectchromatographyen_US
dc.titleRemoval of heavy metal ions from aquatic solutions by membrane chromatographyen_US
dc.typeArticle

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