Artículo

Influence of thermal treatment on bentonite used as adsorbent for Cd, Pb, Zn retention from mono-solute and poly-solute aqueous solutions

Martínez Stagnaro, Susana YamilaIcon ; Volzone, CristinaIcon ; Rueda, Monica Luciana
Fecha de publicación: 07/2012
Editorial: Universidade Federal de São Carlos
Revista: Materials Research
ISSN: 1516-1439
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:

Resumen

The retentions of Zn, Cd and Pb cations by one treated bentonite up to 750 °C were analyzed. The retentions were evaluated by using mono-and poly-solute aqueous solutions of such cations. The adsorptions were carried out in batch system at room temperature. The solid/liquid ratio was 2% wt.v–1. The solids were characterized by X-ray diffraction, thermal and chemical analyses. The Zn cation from mono- or polysolute-solutions was retained in higher amount than Cd and Pb cations in similar solution types by bentonite. The retentions were effective up to 450 °C calcined bentonite, after that, the retention capacity decreased in concordance with dehydroxylation of the structure of clay minerals.
Palabras clave: cadmium , lead , zinc , clay
 
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial 2.5 Unported (CC BY-NC 2.5)
Identificadores
URI: http://hdl.handle.net/11336/270866
URL: https://www.scielo.br/j/mr/a/YhzRCZxXfcWznZq5z7q3hxg/?lang=en
DOI: http://dx.doi.org/10.1590/S1516-14392012005000074
Colecciones
Articulos(CETMIC)
Articulos de CENTRO TECNOL.DE REC.MINERALES Y CERAMICA (I)
Citación
Martínez Stagnaro, Susana Yamila; Volzone, Cristina; Rueda, Monica Luciana; Influence of thermal treatment on bentonite used as adsorbent for Cd, Pb, Zn retention from mono-solute and poly-solute aqueous solutions; Universidade Federal de São Carlos; Materials Research; 15; 4; 7-2012; 549-553
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