Abstract

COSTA, Enio Tarso de Souza et al. Characterization of an aluminum industry by-product and its use on cadmium and lead retention in monoelementary systems. Quím. Nova [online]. 2009, vol.32, n.4, pp. 868-874. ISSN 0100-4042.  http://dx.doi.org/10.1590/S0100-40422009000400008.

The present work aimed to characterize an aluminum industry by-product in natura (L.A. nat) and after phosphate and thermal pretreatments; evaluate the adsorption/desorption capacity of Cd and Pb by this L.A. nat form and after the aforementioned pretreatments, comparing them with an in natura iron mining by-product (L.F. nat). The L.A. nat presented a high pH as well as a high Na concentration and also an oxide-rich mineralogy. Pretreatment of the by-product had no significant effect upon Cd and Pd adsorption/desorption. The L.A. nat performed better than the L.F. nat as an Cd and Pb adsorbent.

Keywords : pretreatment; amendment; trace elements.