Remoção de Pb2+ e Cr3+ em solução por zeólitas naturais associadas a rochas eruptivas da formação serra geral, bacia sedimentar do Paraná


Autoria(s): SHINZATO, Mirian Chieko; MONTANHEIRO, Tarcísio José; Janasi, Valdecir de Assis; Andrade, Sandra; Yamamoto, Jorge Kazuo
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

http://www.scielo.br/pdf/qn/v32n8/v32n8a02.pdf

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