Characterization of an aluminum industry by-product and its use on cadmium and lead retention in monoelementary systems

Química Nova

Costa, Enio Tarso de Souza¹  Lopes, Guilherme¹  Curi, Nilton¹  Guilherme, Luiz Roberto Guimarães¹  Oliveira, Luiz Carlos Alves de¹  Universidade Federal de Lavras, Lavras, Brasil¹  Visioli, Elton Luiz¹ 

关键词: pretreatment;    amendment;    trace elements.;   

DOI  :  10.1590/S0100-40422009000400008

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

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.

【 授权许可】

Unknown