Decolourization of Reactive Blue 28 by UV/H2O2 process: Optimization through Response Surface Methodology (RSM)

Decolourization of Reactive Blue 28 was studied using advanced photo-oxidation process (UV/H2O2). The effect of operating parameters such as initial solution pH (3-11), H2O2 Dosage (10-60 mM) and initial dye concentrations (100-200 mg/L) was studied on % decolourization. The operating parameters were optimized using Response Surface Methodology. The global optimal parameters were found to be: 36.7 mg/L of initial Reactive Blue 28 concentration, pH of 2.7 and H2O2 concentration of 18.3 mM.