Degradación de azul de metileno por oxidación catalítica con peroxido de hidrogeno

L. I. DOUMIC; M. C. CASSANELLO; M.A. AYUDE; P. M. HAURE

Mar del Plata

Congreso; VI Congreso Argentino de Ingeniería Química; 2010

Degradation of Orange G and Methylene Blue dyes using Fenton is investigated. Experiments have been carried out in a batch reactor with magnetic stirring, at 298K and 323K and pH 3. Performance was evaluated by UV/VIS spectrophotometric, total organic carbon (TOC), pH and H2O2 concentration measurements. The effect of temperature, air flow, H2O2 concentration and dosification and reaction times on decolourization as well as on mineralization is analyzed. Decolourization of Orange G undergoes a faster reaction rate than mineralization. Only decolourization is observed for MB oxidation. The presence of air bubbling into the solution definitely enhances the Fenton process for both dyes and so it does the sequential addition of H2O2.