English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/20186
Compartir / Impacto:
Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL

Application of zeolitic volcanic rocks for arsenic removal from water

AutorRuggieri, Flavia ; Marín, V.; Gimeno, D.; Fernandez-Turiel, J. L. ; García-Vallés, M.; Gutierrez, L.
Palabras claveArsenic
Natural zeolites
Fecha de publicaciónjul-2008
CitaciónEngineering Geology 101(3-4): 245-250(2008)
ResumenNatural zeolitic rocks consisting mainly of chabazite-phillipsite, clinoptilolite, and volcanic glass have been evaluated by means of batch methods to remove arsenic from waters with different mineralization degree (from deionized water to natural water with a specific conductivity of 1,600 μS cm− 1). Arsenic was previously spiked in the studied waters at concentrations of about 100 µg l− 1 to simulate actual cases. The compositional range of natural waters is representative of large hydrogeochemical regions around the world. The experiments were focussed on the application of natural common zeolitic rocks to water treatment for human consumption. The removal efficiency observed rises, in the better cases, 60–80% for chabazite-phillipsite raw materials whereas is 40–60% for clinoptilolite-bearing ones. The arsenic removal tends to increase with water mineralization degree, independently of the zeolitic rock type. A large zeolitic content in the chabazite-phillipsite raw materials increase the removal. Instead, the inverse situation is observed in the clinoptilolite-bearing rocks. The relevance of the quantitative mineralogical analysis, determining also the content of volcanic glass, as well as the use of natural waters in the removal tests has been demonstrated.
Descripción6 páginas, 2 figuras, 2 tablas.
Versión del editorhttp://dx.doi.org/10.1016/j.enggeo.2008.06.006
Aparece en las colecciones: (ICTJA) Artículos
Ficheros en este ítem:
No hay ficheros asociados a este ítem.
Mostrar el registro completo

Artículos relacionados:

NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.