Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/69271
Título: Design and optimization of an electrocoagulation reactor for fluoride remediation in underground water sources for human consumption
Autores/as: Betancor-Abreu, A.
Mena González, Vicente Fernando 
Gonzalez, S.
Delgado, S.
Souto, R. M.
SANTANA, J. J. 
Clasificación UNESCO: 3303 ingeniería y tecnología químicas
Palabras clave: Waste-Water
Drinking-Water
Canary-Islands
Removal
Defluoridation, et al.
Fecha de publicación: 2019
Proyectos: Comunidad de Aguas Barranco de Vergara (Los Realejos, Spain) under research contract “Estudio de viabilidad a escala de laboratorio del tratamiento de aguas subterráneas fluoradas por electrocoagulación”
Publicación seriada: Journal of Water Process Engineering 
Resumen: Fluoride remediation in underground waters of volcanic origin was performed at laboratory scale using an electrocoagulation (EC) technique. The natural waters from certain volcanic springs on the island of Tenerife (Canary Islands, Spain) contain average fluoride concentrations in excess of 7 mg/L. Thus, it is necessary to treat the water for fluoride mitigation below the maximum acceptable concentration of 1.5 mg/L according to Spanish regulations for drinking water. The design and optimization of a sustainable process was accomplished using a progressive scale-up procedure involving three pilot reactors with different configurations and effective working volumes. A bipolar electrode cell design using aluminum electrodes was used in all cases. The good performance of the process was confirmed by reducing the fluoride concentration from 7.35 to 1.4 mg/L. The following optimized operating conditions were determined for a continuous flow cell system: current density, 10 mA/cm(2); residence time, 10 min; and, half-period of polarity reversal, 1 min. Furthermore, the kinetics of the remediation process can be fitted using the Variable Order Kinetic (VOK) model, with a power relationship between fluoride concentration and residence time in the EC reactor.
URI: http://hdl.handle.net/10553/69271
ISSN: 2214-7144
DOI: 10.1016/j.jwpe.2019.100865
Fuente: Journal Of Water Process Engineering [ISSN 2214-7144], v. 31
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