In field arsenic removal from natural water by zero-valent iron assisted by solar radiation

Cornejo, L.; Lienqueo H.; Arenas, M; Acarapi J.; Contreras D.; Yáñez J.; Mansilla, HD

Abstract

An in situ arsenic removal method applicable to highly contaminated water is presented. The method is based in the use of steel wool, lemon juice and solar radiation. The method was evaluated using water from the Camarones River, Atacama Desert in northern Chile, in which the arsenic concentration ranges between 1000 and 1300 μg L -1. Response surface method analysis was used to optimize the amount of zero-valent iron (steel wool) and the citrate concentration (lemon juice) to be used. The optimal conditions when using solar radiation to remove arsenic from natural water from the Camarones river are: 1.3 g L -1 of steel wool and one drop (ca. 0.04 mL) of lemon juice. Under these conditions, removal percentages are higher than 99.5% and the final arsenic concentration is below 10 μg L -1. This highly effective arsenic removal method is easy to use and inexpensive to implement. © 2008 Elsevier Ltd. All rights reserved.

Más información

Título según WOS: In field arsenic removal from natural water by zero-valent iron assisted by solar radiation
Título según SCOPUS: In field arsenic removal from natural water by zero-valent iron assisted by solar radiation
Título de la Revista: ENVIRONMENTAL POLLUTION
Volumen: 156
Número: 3
Editorial: Elsevier
Fecha de publicación: 2008
Página de inicio: 827
Página final: 831
Idioma: English
URL: http://linkinghub.elsevier.com/retrieve/pii/S026974910800287X
DOI:

10.1016/j.envpol.2008.05.022

Notas: ISI, SCOPUS