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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.

 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

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

Autoría

CARLOS JAVIER ESCUDERO SANTIAGO

OLALLA IGLESIAS CASTRILLEJO

SARA DOMINGUEZ SUAREZ