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dc.contributor.authorHerrero, Roberto
dc.contributor.authorLodeiro, Pablo
dc.contributor.authorVilariño, Teresa
dc.contributor.authorRey Castro, Carlos
dc.contributor.authorDavid, Calin
dc.contributor.authorRodríguez-Barro, Pilar
dc.contributor.authorGarcía Casal, Lino J.
dc.date.accessioned2016-12-12T10:33:42Z
dc.date.issued2011
dc.identifier.issn0960-8524
dc.identifier.urihttp://hdl.handle.net/10459.1/58792
dc.description.abstractIn this work kinetic and equilibrium studies related to copper binding to the protonated macroalga Sargassum muticum are reported. An intraparticle-diffusion linear driving force (LDF) model has been chosen for the quantitative description of the kinetics at several initial metal concentrations. Copper intraparticle homogeneous diffusion coefficient (Dh) obtained is in the range 0.2–0.9 10 10 m2 s 1. NICA isotherm is demonstrated to constitute a substantial improvement with respect to a simpler Langmuir competitive equation. The binding parameters were chosen to provide the best simultaneous description of the equilibrium experiments. Values of log eK Cu (4.3), nCu (1) and p (0.31) in NICA isotherm, and log KCu (3.5–5) in Langmuir competitive model, have been obtained. These parameters have been also used to predict the competition between copper and cadmium for binding sites. Two acids, HNO3 and HCl, have been tested to evaluate their effectiveness to release copper from the metal-laden biomass.ca_ES
dc.description.sponsorshipThis work was funded by the projects CTM2006-03142/TECNO (from the Ministerio de Educación y Ciencia of Spain) and PGDIT06- TAM00401CT (from Xunta de Galicia). The authors would like to thank Dr. I. Bárbara and Dr. J. Cremades (University of A Coruña) for the collection and classification of the algae species. Pablo Lodeiro gratefully acknowledges financial support through Ángeles Alvariño project AA 10.02.56B.444.0 and the grant for research stay outside Galicia 10.02.561B.480.0 (from Xunta de Galicia), both co-funded by 80% with European Social Funds.ca_ES
dc.language.isoengca_ES
dc.publisherElsevierca_ES
dc.relationMIECI/PN2004-2007/CTM2006-03142/TECNOca_ES
dc.relation.isformatofReproducció del document publicat a https://doi.org/10.1016/j.biortech.2010.10.007ca_ES
dc.relation.ispartofBioresource Technology, 2011, vol. 102, núm. 3, p. 2990-2997ca_ES
dc.rights(c) Elsevier Ltd, 2010ca_ES
dc.subjectCopperca_ES
dc.subjectSargassum muticumca_ES
dc.subjectLDFca_ES
dc.titleFull description of copper uptake by algal biomass combining an equilibrium NICA model with a kinetic intraparticle diffusion driving force approachca_ES
dc.typearticleca_ES
dc.identifier.idgrec017202
dc.type.versionpublishedVersionca_ES
dc.rights.accessRightsinfo:eu-repo/semantics/restrictedAccessca_ES
dc.identifier.doihttps://doi.org/10.1016/j.biortech.2010.10.007
dc.date.embargoEndDate2025-01-01


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