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dc.contributor.authorLiu, X
dc.contributor.authorGoodfellow, MR
dc.contributor.authorYu, Q
dc.contributor.authorZheng, C
dc.contributor.editorJohn N. Lester
dc.date.accessioned2017-05-03T12:06:32Z
dc.date.available2017-05-03T12:06:32Z
dc.date.issued2004
dc.date.modified2009-09-25T04:42:06Z
dc.identifier.issn0959-3330
dc.identifier.doi10.1080/09593332508618469
dc.identifier.urihttp://hdl.handle.net/10072/5257
dc.description.abstractEquilibrium isotherms of heavy metal biosorption are commonly correlated with adsorption models such as the Freundlich model. On the other hand, the adsorption properties of heavy metal biosorption are strongly influenced by the solution pH of the biosorption system. Therefore, standard adsorption models are limited to the correlation of equilibrium isotherms under constant pH values. In this paper, a modified Freundlich model was developed for the correlation of pH dependent equilibrium isotherms of heavy metal biosorption. The model was based on the mechanism that the functional groups for heavy metal interactions are weakly acidic groups and the uptake capacities of the biomass are affected through the association and dissociation equilibrium between two apparent ionic forms. Both the standard and the modified Freundlich models were tested with isotherm data for Cd2+, Cu2+ and Ni2+ biosorption onto pre-treated biomass of marine alga Durvillaea potatorum under various solution pH values. Regression analyses indicated that the developed model correlated the experimental data well.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.languageEnglish
dc.language.isoen_AU
dc.publisherTaylor & Francis Ltd.
dc.publisher.placeUnited Kingdom
dc.publisher.urihttp://www.tandf.co.uk/journals/titles/09593330.asp
dc.relation.ispartofpagefrom1341
dc.relation.ispartofpageto1348
dc.relation.ispartofissue12
dc.relation.ispartofjournalEnvironmental Technology
dc.relation.ispartofvolume25
dc.subject.fieldofresearchEnvironmental Sciences
dc.subject.fieldofresearchBiological Sciences
dc.subject.fieldofresearchEngineering
dc.subject.fieldofresearchcode05
dc.subject.fieldofresearchcode06
dc.subject.fieldofresearchcode09
dc.titleCorrelation of pH Dependant Equilibrium Isotherms of Heavy Metal Biosorption with a Modified Freundlich Model
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.rights.copyright© 2004 Taylor & Francis. Please refer to the journal's website for access to the definitive, published version.
gro.date.issued2004
gro.hasfulltextNo Full Text
gro.griffith.authorYu, Jimmy J.
gro.griffith.authorGoodfellow, Matthew R.


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