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dc.creatorMorera Luzán, María Teresaes_ES
dc.creatorEcheverría Morrás, Jesúses_ES
dc.creatorGarrido Segovia, Julián Josées_ES
dc.date.accessioned2014-05-28T09:28:06Z
dc.date.available2014-05-28T09:28:06Z
dc.date.issued2001
dc.identifier.issn0008-4271 (print)
dc.identifier.issn1918-1841 (electronic)
dc.identifier.other954
dc.identifier.urihttps://hdl.handle.net/2454/10623
dc.description.abstractSewage sludges added to arable land can improve soil fertility and physical properties. However, the concentrations of heavy metals commonly found in sludges limits their application to soil. The purpose of this paper is to evaluate the mobility of heavy metals (Cd, Cu, Ni, Pb and Zn) in four soils amended with different rates (0, 80, 60 and 320 t ha-1) of anaerobically stabilized urban sewage sludge. Total metal content in the sewage sludge was Zn much greater than Cu > Pb > Ni much greater than Cd. Sludge, soils and sludge-soil mixtures were fractionated by the Tessier sequential extraction procedure. The fractions extracted by H2O2/HNO3 and NH2OH.HCl were the most abundant pools for metals under study. The apparent mobility of metals in the sludge was Zn approximate to Cd approximate to Ni > Pb > Cu. The addition of sewage sludge in soils increased the percentages of metal extracted in non-residual fractions. ANOVA showed that the most significant increases were those of Zn, followed by Cu and Pb; there were no statistical differences (P < 0.05) for Ni and Cd. Exchangeable Zn from sludge was immobilized in basic soils. The other trace metals showed no fraction redistribution. The soils and sludge-treated soil samples were also extracted with EDTA and DTPA. Extraction with EDTA was more sensitive to soil type, whereas extraction with DTPA showed wider variation with metals. Both chelates seemed to be more effective to assess the mobility of metals added with the sludges at low concentrations than the Tessier's chemical partitioning.en
dc.description.sponsorshipThis work was supported by a project of Instituto Nacional de Investigación y Tecnología Agraria y Alimentación (INIA SC94-026).en
dc.format.mimetypeapplication/pdfen
dc.language.isoengen
dc.publisherAgricultural Institute of Canadaen
dc.relation.ispartofCanadian Journal of Soil Science, 2001, 81(4). Págs. 405-414en
dc.rights© Agricultural Institute of Canadaen
dc.subjectSoilsen
dc.subjectSewage sludgeen
dc.subjectHeavy metalsen
dc.subjectMobilityen
dc.subjectPlant availabilityen
dc.subjectTrace metalsen
dc.subjectExtractionen
dc.subjectCadmiumen
dc.subjectZincen
dc.subjectSpeciationen
dc.subjectExtractabilityen
dc.subjectAccumulationen
dc.subjectCopperen
dc.subjectLeaden
dc.titleMobility of heavy metals in soils amended with sewage sludgeen
dc.typeArtículo / Artikuluaes
dc.typeinfo:eu-repo/semantics/articleen
dc.contributor.affiliationNafarroako Unibertsitate Publikoa. Kimika Aplikatua Sailaeu
dc.contributor.affiliationUniversidad Pública de Navarra. Departamento de Química Aplicadaes_ES
dc.rights.accessRightsAcceso abierto / Sarbide irekiaes
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessen
dc.identifier.doi10.4141/S00-043
dc.relation.publisherversionhttps://dx.doi.org/10.4141/S00-043
dc.type.versionVersión aceptada / Onetsi den bertsioaes
dc.type.versioninfo:eu-repo/semantics/acceptedVersionen


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