Sorption and Selectivity Sequences of Cd, Cu, Ni, Pb, and Zn in Single- and Multi-Component Systems in a Cultivated Chilean Mollisol

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dc.contributor.authorMolina, Mauricio
dc.contributor.authorManquian Cerda, Karen
dc.contributor.authorEscudey, Mauricio
dc.date.accessioned2024-01-10T12:42:51Z
dc.date.available2024-01-10T12:42:51Z
dc.date.issued2010
dc.description.abstractThe heavy-metal sorption ability of soils is one of the most important factors that determine the fate of these contaminants in this medium of the biosphere. When heavy-metal containing soil amendments are land applied, a multi-component soil-solution equilibrium may occur in which various metals compete simultaneously for the sorption sites on the soil particles. In order to determine the effect of competition among Cd, Cu, Ni, Pb, and Zn on sorption characteristics and the selectivity sequence of those heavy metals in a cultivated Mollisol of central Chile, batch sorption experiments were carried out in single- and multi-component systems. Heavy metal sorption isotherms in both types of system were well described by the Langmuir's equation. For all the metals evaluated, competition among them (multi-component system) decreased both the maximum sorption capacity, obtained from the Langmuir's isotherm, and the partition coefficient (Kd) compared to the single-component system. In addition, the simultaneous presence of the five metals promoted the sorption of Cd, and to a lesser extent of Ni, on more specific sorption sites of soil particles. Either in single- or multi-component system, Pb and Cu showed a higher selectivity and retention compared to Cd, Ni and Zn, which indicates that the later heavy metals would present a higher mobility in the soil-plant-water system. Since Langmuir's parameters and Kd were highly affected by competition for all heavy metals evaluated, the use of single-component parameters in modeling assessment might lead to an incorrect description of the transport and fate of these contaminants in receiving Mollisols.
dc.description.funderFONDECYT (National Fund for Scientific & Technological Development)
dc.description.funderPUC-MECESUP
dc.fechaingreso.objetodigital2024-05-09
dc.format.extent14 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1080/15320383.2010.486053
dc.identifier.eissn1549-7887
dc.identifier.issn1532-0383
dc.identifier.urihttps://doi.org/10.1080/15320383.2010.486053
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/77546
dc.identifier.wosidWOS:000278713700002
dc.information.autorucAgronomía e Ing. Forestal;Molina M;S/I;13570
dc.issue.numero4
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final418
dc.pagina.inicio405
dc.publisherTAYLOR & FRANCIS INC
dc.revistaSOIL & SEDIMENT CONTAMINATION
dc.rightsacceso restringido
dc.subjectcompetitive interaction
dc.subjectheavy metal
dc.subjectLangmuir's model
dc.subjectpartition coefficient
dc.subjectsorption isotherm
dc.subjectHEAVY-METAL IONS
dc.subjectCOMPETITIVE ADSORPTION
dc.subjectLEAD SORPTION
dc.subjectSOILS
dc.subjectCADMIUM
dc.subjectCOPPER
dc.subjectDESORPTION
dc.subjectZINC
dc.subjectNICKEL
dc.subjectPH
dc.subject.ods11 Sustainable Cities and Communities
dc.subject.odspa11 Ciudades y comunidades sostenibles
dc.titleSorption and Selectivity Sequences of Cd, Cu, Ni, Pb, and Zn in Single- and Multi-Component Systems in a Cultivated Chilean Mollisol
dc.typeartículo
dc.volumen19
sipa.codpersvinculados13570
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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