Please use this identifier to cite or link to this item: http://www.repositorio.ufop.br/handle/123456789/3441
Title: Adsorção competitiva de As, Cu, Pb e Cr na avaliação da capacidade de fixação de metais por efluentes de mineradoras de ferro.
Other Titles: Adsorption of As, Cu, Pb and Cr for the assessment of metal retention by two different residues from iron ore mines.
Authors: Basílio, Márcio Silva
Friese, Kurt
Lena, Jorge Carvalho de
Nalini Júnior, Hermínio Arias
Roeser, Hubert Mathias Peter
Keywords: Iron rich sediments
Adsorption isotherm
Sequential extraction
Issue Date: 2005
Citation: BASILIO, M. S. et al. Adsorção competitiva de As, Cu, Pb e Cr na avaliação da capacidade de fixação de metais por efluentes de mineradoras de ferro. Química Nova, São Paulo, v. 28, n. 5, p. 822-828, 2005. Disponível em: <http://www.scielo.br/scielo.php?pid=S0100-40422005000500018&script=sci_abstract&tlng=pt>. Acesso em: 09 set. 2013.
Abstract: Two samples of residues from iron mining plants have been investigated for their retention capacity of As, Cu, Cr, and Pb. The sample with the higher content of iron oxides showed the highest capacity to retain metals. The adsorption affinity series changes from Pb>Cu>Cr≈As to As>Pb>Cu>Cr or As>Cu>Cr>Pb, depending on the material and the concentration of the initial solution. In the competitive environment, the Pb adsorption decreases and the As, Cu and Cr adsorption increases. Sequential extraction procedures, carried out after adsorption batch experiments, showed that the most important adsorption process occurs in the oxide fraction and that the major part of the absorbed metal is remobilized from exchangeable and oxide fractions.
URI: http://www.repositorio.ufop.br/handle/123456789/3441
ISSN: 1678-7064
metadata.dc.rights.license: A Sociedade Brasileira de Química dá permissão à UFOP para reproduzir no RI/UFOP, uma cópia em formato eletrônico dos artigos completos, sem nenhuma edição e/ou modificação, publicados na revista Química Nova, que tenham como autores seus alunos e/ou professores. Contato em; 17 set. 2013.
Appears in Collections:DEGEO - Artigos de periódicos

Files in This Item:
File Description SizeFormat 
ARTIGO_AdsorçãoCompetitivaAs.pdf236,8 kBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.