Title of article :
Electrochemical oxidation of methyl orange azo dye at pilot flow plant using BDD technology
Author/Authors :
Ramيrez، نويسنده , , Cecilia and Saldaٌa، نويسنده , , Adriana and Hernلndez، نويسنده , , Berenice and Acero، نويسنده , , Roberto and Guerra، نويسنده , , Ricardo and Garcia-Segura، نويسنده , , Sergi and Brillas، نويسنده , , Enric and Peralta-Hernلndez، نويسنده , , Juan M.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2013
Abstract :
Solutions of methyl orange azo dye were degraded by electrochemical oxidation using a 3 L flow plant with a boron-doped diamond (BDD)/stainless steel cell operating at constant current density, ambient temperature and liquid flow rate of 12 L min−1. A 23 factorial design considering the applied current density, azo dye concentration and electrolysis time as variable independents was used to analyze the process by response surface methodology. LC–MS analysis revealed the formation of seven oxidation products from the cleavage of the NN group of the dye, followed by deamination, formation of a nitro group and/or desulfonation of the resulting aromatics.
Keywords :
Electrochemical oxidation , Methyl orange , Wastewater treatment , BDD , Oxidation products , Response surface methodology
Journal title :
Journal of Industrial and Engineering Chemistry
Journal title :
Journal of Industrial and Engineering Chemistry