Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/573324
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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.citationSci. Agric. (Piracicaba, Braz.), v. 66, n. 5, p. 643-649, sep./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.subjectLodo de esgotopt_BR
dc.subjectLatossolpt_BR
dc.subjectHeavy Metalpt_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.thesagroLatossolopt_BR
dc.subject.thesagroExtraçãopt_BR
dc.subject.thesagroMetal Pesadopt_BR
dc.subject.nalthesaurusextractionpt_BR
dc.subject.nalthesaurussludgept_BR
dc.format.extent2643-649pt_BR
riaa.ainfo.id573324pt_BR
riaa.ainfo.lastupdate2013-11-07pt_BR
dc.identifier.doi10.1590/S0103-90162009000500009pt_BR
dc.contributor.institutionGIULIANO MARCHI, CPAC; Luiz Roberto Guimarães Guilherme, UFLA; Andrew C. Chang, University of California; Clístenes Williams Araújo do Nascimento, UFRPE.pt_BR
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