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Proton binding properties of humic substances originating from natural and contaminated materials

2009Journal article Restricted access
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dc.contributor.authorVan Zomeren, A.
dc.contributor.authorCosta, A.
dc.contributor.authorPinheiro, J. P.
dc.contributor.authorComans, R. N. J.
dc.date.accessioned2013-12-03T15:00:52Z
dc.date.available2013-12-03T15:00:52Z
dc.date.issued2009
dc.date.updated2013-11-26T16:25:56Z
dc.description.abstractHumic substances (HS) are ubiquitous organic constituents in soil and water and can strongly adsorb metal contaminants in natural and waste environments. Therefore, understanding and modeling contaminant-HS interactions is a key issue in environmental risk assessment. Current binding models for HS, such as the nonideal competitive adsorption (NICA)-Donnan model, are developed and calibrated against natural organic matter from soils and surface waters. The aim of this study is to analyze the proton binding properties of humic and fulvic acidsamplesoriginatingfromsecondarymaterials,wastematerials and natural samples in order to assess whether the charge development of these HS can be described with generic NICA-Donnan parameters. New proton binding parameters are presented for HS isolated from several natural and contaminated (waste) materials. These parameters are shown tobesimilar to those ofHSoriginating from natural environments, suggesting that the NICA-Donnan model and generic binding parameters are adequate to describe proton binding to HS in both natural and contaminated materials. These findings widen the range of environments to which the NICA-Donnan model can be applied and justify its use in geochemical speciation modeling of metal mobility in contaminated (waste) materials.por
dc.identifier.citationVan Zomeren, A.; Costa, A.; Pinheiro, J. P.; Comans, R. N. J. Proton binding properties of humic substances originating from natural and contaminated materials, Environmental Science and Technology, 43, 5, 1393-13, 2009.por
dc.identifier.issn0013-936X
dc.identifier.otherAUT: JPI01020;
dc.identifier.urihttp://hdl.handle.net/10400.1/3213
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherAmerican Chemical Societypor
dc.titleProton binding properties of humic substances originating from natural and contaminated materialspor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1399por
oaire.citation.issue5por
oaire.citation.startPage1393por
oaire.citation.titleEnvironmental Science and Technologypor
oaire.citation.volume43por
person.familyNamePinheiro
person.givenNameJosé Paulo
person.identifier.orcid0000-0001-7925-9733
person.identifier.ridE-8402-2013
person.identifier.scopus-author-id35838299700
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication5caedbac-d2b5-4a86-91a7-083bf83edda3
relation.isAuthorOfPublication.latestForDiscovery5caedbac-d2b5-4a86-91a7-083bf83edda3

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