Mostrar el registro sencillo del ítem
dc.contributor.author
Antelo, J.
dc.contributor.author
Arce, F.
dc.contributor.author
Avena, Marcelo Javier
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.contributor.author
Fiol, S.
dc.contributor.author
López, R.
dc.contributor.author
Macías, F.
dc.date.available
2020-01-16T22:09:41Z
dc.date.issued
2007-02
dc.identifier.citation
Antelo, J.; Arce, F.; Avena, Marcelo Javier; Fiol, S.; López, R.; et al.; Adsorption of a soil humic acid at the surface of goethite and its competitive interaction with phosphate; Elsevier Science; Geoderma; 138; 1-2; 2-2007; 12-19
dc.identifier.issn
0016-7061
dc.identifier.uri
http://hdl.handle.net/11336/95033
dc.description.abstract
In order to be able to make predictions about the bioavailability and transport of contaminants and nutrients in soils, detailed knowledge is required about the adsorption of natural organic matter on the surface of oxides, as well as the processes of competition with the different ions present in the soil. With this aim, experiments investigating the adsorption of a soil humic acid (SHA) on goethite were carried out at pH 4.5, 7.0 and 10.0 and ionic strengths of 0.1 and 0.01 M, and the competition between SHA and phosphate was analysed by performing adsorption isotherms and electrophoresis experiments. Adsorption of SHA was clearly dependent on pH and ionic strength, decreasing with increasing pH or decreasing ionic strength. The results show that SHA and phosphate compete for the goethite surface, since the presence of phosphate decreases the adsorption of SHA and the presence of SHA decreases the adsorption of phosphate. Under certain conditions of pH, a decrease in phosphate adsorption of up to 45% and a decrease of SHA adsorption between 20 and 35% is produced. Furthermore, experiments performed by varying the order of addition of adsorbates to the goethite dispersion suggest that equilibration is attained more quickly when the adsorbates are added simultaneously than when one of the adsorbates is added before the other.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
COMPETITION
dc.subject
GOETHITE
dc.subject
PHOSPHATE ADSORPTION
dc.subject
SOIL HUMIC ACID
dc.subject.classification
Otras Ciencias Químicas
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.subject.classification
Ciencias Químicas
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.title
Adsorption of a soil humic acid at the surface of goethite and its competitive interaction with phosphate
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-11-04T15:26:44Z
dc.journal.volume
138
dc.journal.number
1-2
dc.journal.pagination
12-19
dc.journal.pais
Países Bajos
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Antelo, J.. Universidad de Santiago de Compostela; España
dc.description.fil
Fil: Arce, F.. Universidad de Santiago de Compostela; España
dc.description.fil
Fil: Avena, Marcelo Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina
dc.description.fil
Fil: Fiol, S.. Universidad de Santiago de Compostela; España
dc.description.fil
Fil: López, R.. Universidad de Santiago de Compostela; España
dc.description.fil
Fil: Macías, F.. Universidad de Santiago de Compostela; España
dc.journal.title
Geoderma
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1016/j.geoderma.2006.10.011
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0016706106002989
Archivos asociados