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dc.contributor.authorMARCHI, G.pt_BR
dc.contributor.authorGUILHERME, L. R. G.pt_BR
dc.contributor.authorCHANG, A. C.pt_BR
dc.contributor.authorNASCIMENTO, C. W. A. dopt_BR
dc.date.accessioned2011-04-10T11:11:11Zpt_BR
dc.date.available2011-04-10T11:11:11Zpt_BR
dc.date.created2009-10-27pt_BR
dc.date.issued2009pt_BR
dc.identifier.citationSoils and Plant Nutrition, v. 66, n. 5, p. 643-649, Oct. 2009pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/573324pt_BR
dc.descriptionFew investigations have been carried out about the comparison of desorption rate and amount of heavy metals extracted successively by organic acid mixtures mimicking the rhizosphere and routine extractants in sewage sludge-amended soils. Extractions of Zn, Cd, Ni, Cr, and Cu were performed in samples of a sewage sludge-amended soil using seven extractants: four organic acid mixtures and three routine extractants (DTPA, Mehlich-I, and ammonium acetate). Results from single pass extractions, in which the extractable metal contents were determined by simply extracting the soil a single time, as well as from 15 successive extractions, in which the solid residues of the first extraction was successively extracted 14 additional times, of heavy metals were analyzed. The extractability of heavy metals in a single pass extraction was, in general, as follows: Mehlich-I > DTPA > organic acids > NH4OAc. The highest rates of extraction followed the general order: DTPA > Mehlich-I > organic acids > NH4OAc. While Mehlich-I presented the highest extractability of heavy metals among studied extractants, DTPA showed a high extractability of Zn, Cd, Ni, and Cu in a single extraction as well as the highest rates of extraction among the studied extractants. The transfer of heavy metals from soil to organic acid solutions is slower than to DTPA and Mehlich-I extractants.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectLatossolpt_BR
dc.titleHeavy metals extractability in a soil amended with sewage sludge.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2013-11-07T11:11:11Zpt_BR
dc.subject.nalthesaurusExtractionpt_BR
dc.subject.nalthesaurusSludgept_BR
dc.subject.nalthesaurusOxisolseng
dc.subject.nalthesaurusTrace elementseng
dc.subject.nalthesaurusHeavy metalseng
riaa.ainfo.id573324pt_BR
riaa.ainfo.lastupdate2013-11-07pt_BR
dc.identifier.doihttps://doi.org/10.1590/S0103-90162009000500009pt_BR
dc.contributor.institutionGIULIANO MARCHI, CPACpt_BR
dc.contributor.institutionLUIZ ROBERTO GUIMARÃES GUILHERME, UNIVERSIDADE FEDERAL DE LAVRASeng
dc.contributor.institutionANDREW C. CHANG, UNIVERSITY OF CALIFORNIAeng
dc.contributor.institutionCLÍSTENES WILLIAMS ARAÚJO DO NASCIMENTO, UNIVERSIDADE FEDERAL RURAL DE PERNAMBUCO.eng
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