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Title (Primary) Adsorção de As, Cu, Pb e Cr na avaliação da capacidade de fixação de metais por resíduo de mineradoras de ferro
Author Basílio, M.S.; Friese, K.; de Lena, J.C.; Nalini jr., H.A.; Roeser, H.M.P.;
Journal Química Nova
Year 2005
Department SEEFO;
Volume 28
Issue 5
Language portugiesisch;
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
ID 3165
Persistent UFZ Identifier http://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=3165
Basílio, M.S., Friese, K., de Lena, J.C., Nalini jr., H.A., Roeser, H.M.P. (2005):
Adsorção de As, Cu, Pb e Cr na avaliação da capacidade de fixação de metais por resíduo de mineradoras de ferro
Quim. Nova 28 (5), 822 - 828