A kinetic model for the decolorization of C.I. Acid Yellow 23 by Fenton process.
The decolorization of azo dye C.I. Acid Yellow 23 (AY23) by Fenton process was investigated. The decolorization rate is strongly dependent on the initial concentrations of the Fe(2+) and H(2)O(2). The optimum operational conditions were obtained at pH 3. A kinetic model has been developed to predict the decolorization of AY23 at different operational conditions by Fenton process. The model allows to simulate the system behavior involving the influence of hydrogen peroxide, Fe(II) and dye concentrations.
Behnajady
M A
MA
Department of Applied Chemistry, Islamic Azad University, Tabriz Branch, P.O. Box 1655, Tabriz, Islamic Republic of Iran. behnajady@iaut.ac.ir
Modirshahla
N
N
Ghanbary
F
F
D001391:Azo Compounds / Q000737:chemistry*; D003116:Color; D005296:Ferrous Compounds; D006861:Hydrogen Peroxide; D007501:Iron; D007700:Kinetics; D008956:Models, Chemical; D011720:Pyrazoles / Q000737:chemistry*; D014865:Waste Disposal, Fluid / Q000379:methods*
D001391:Azo Compounds; C514386:C.I. Acid Yellow 23; C045076:Fenton's reagent; D005296:Ferrous Compounds; D011720:Pyrazoles; D006861:Hydrogen Peroxide; D007501:Iron