The section of the study was organized in five sets to
determine the appropriate conditions for the removal of azo dyes
by CWPO. In each set, all the experiments were performed using
300mL solution of a mixture of 200 mg/L of Procion Red MX-5B
and 200 mg/L of Reactive Black 5 at atmospheric pressure, with a
continuous air flow rate of 0.23 L/min.In the CWPO process, the effects of activated carbon loading, H_2 O_(2 ) loading, pH, temperature and reaction time were investigated. At the optimized reaction conditions approximately 93% of the dye was removed.