Remoção de Pb2+ e Cr3+ em solução por zeólitas naturais associadas a rochas eruptivas da formação serra geral, bacia sedimentar do Paraná
Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
---|---|
Data(s) |
26/03/2012
26/03/2012
2009
|
Resumo |
The capacity of natural zeolites and its host rock (dacite) to remove Pb2+ and Cr3+ from aqueous solutions has been investigated. Results showed that both samples prefer to remove Pb2+ instead of Cr3+. Almost 100% of Pb2+ was removed from solutions with concentration until 50 mg L-1 and 100 mg L-1 of this metal, respectively by dacite and zeolite. The equilibrium of metals adsorption process was reached during the first 30 min by both materials. Na+ can be used to recover Pb2+, but not to remove Cr3+ from the treated samples. The Sips model showed a good fit for experimental data of this study. Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) |
Identificador |
Química Nova, v.32, n.8, p.1989-1994, 2009 0100-4042 http://producao.usp.br/handle/BDPI/11946 10.1590/S0100-40422009000800002 http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422009000800002 |
Idioma(s) |
por |
Publicador |
Sociedade Brasileira de Química |
Relação |
Química Nova |
Direitos |
openAccess Copyright Sociedade Brasileira de Química |
Palavras-Chave | #Natural zeolites #Adsorption #Heavy metals |
Tipo |
article original article publishedVersion |