Mineralization and Efficiency in the Homogeneous Fenton Orange G Oxidation.

LUCILA DOUMIC; PATRICIA M. HAURE; MIRYAN C. CASSANELLO; M. ALEJANDRA AYUDE

APPLIED CATALYSIS B-ENVIRONMENTAL

ELSEVIER SCIENCE BV

Lugar: Amsterdam; Año: 2013 vol. 142/ p. 214 - 221

0926-3373

This study focuses on the homogeneous Fenton oxidation of the synthetic azo-dye Orange G as a modelcompound. The impact of initial TOC, hydrogen peroxide and catalyst concentrations and of temperatureon mineralization and efficiency in the use of hydrogen peroxide is addressed. Dissolved oxygen con-centration is monitored as an indication of the efficient use of H2O2in the process. A two-stage lumpedkinetic model is proposed to address the effect of initial TOC, catalyst and oxidant concentrations andtemperature on total organic carbon consumption. Temperature increase and dosification of the oxidantare evaluated and compared as process intensification strategies.© 2013 Elsevier B.V. All rights reserved.