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Performance of electrochemical oxidation and photocatalysis in terms of kinetics and energy consumption. New insights into the p-cresol degradation

Abstract: This work reports the comparative performance of two Advanced Oxidation Processes (AOPs), electrochemical oxidation and photocatalysis, as individual technological alternatives for the treatment of effluents containing p-cresol. First, the influence of operating parameters in the oxidation and mineralization yield was carried out together with kinetic analysis. Boron Doped Diamond (BDD), RuO2 and Pt as anodic materials, Na2SO4 and NaCl as supporting electrolytes and different current densities were evaluated in electrochemical oxidation whereas the effect of TiO2 concentration and radiation was studied in the photocatalytic degradation. Then, the parameter Electrical Energy per Order (EEO) was calculated to compare the energy consumption in both AOPs, concluding that under the studied conditions the electrochemical treatment with BDD, Na2SO4 and 125 A m?2 showed the best energy efficiency, with an EEO of 5.83 kW h m?3 order?1 for p-cresol and 58.05 kW h m?3 order?1 for DOC removal, respectively.

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Autoría: Escudero C., Iglesias O., Dominguez S., Rivero M., Ortiz I.,

Fuente: Journal of Environmental Management, 2017,195, Part 2, 117-124

Editorial: Academic Press

Fecha de publicación: 15/06/2017

Nº de páginas: 8

Tipo de publicación: Artículo de Revista

DOI: 10.1016/j.jenvman.2016.04.049

ISSN: 0301-4797,1095-8630

Proyecto español: CTM2012-33917 ; CTQ2012-31639 ; CTM2015-69845-R ; CTQ2015-66078-R

Url de la publicación: https://doi.org/10.1016/j.jenvman.2016.04.049

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Autoría

CARLOS JAVIER ESCUDERO SANTIAGO

OLALLA IGLESIAS CASTRILLEJO

SARA DOMINGUEZ SUAREZ

MARIA JOSE RIVERO MARTINEZ

INMACULADA ORTIZ URIBE

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