267-272In this study,
microwave (MW) was used to activate periodate as a novel advance oxidation
process. The effects of a combined process of sodium Periodate and MW was
studied in phenol removal from synthetic wastewater. Experiments were performed
in a batch process, and the effect of parameters including pH, contact time,
initial phenol concentration, MW radiation and Periodate concentration were
examined. The maximum phenol removal equal to 98.8% was obtained at pH = 11,
initial phenol concentration =100 mg/L, contact time=30 min, MW = 600 W and
Periodate concentration = 0.2 mol/L. The maximum phenol removal was only 11.5 %
at the same conditions but without the influence of MW radiation. The results
revealed that as Periodate concentration, MW radiation and contact time
increased, the phenol removal efficiency increased as well. Furthermore, when
the phenol concentration increased, phenol removal efficiency decreased.
It was also observed that MWs activated Periodate and significantly increased
process efficiency. Therefore, the combined process of MW-Periodate can be used
as a novel advanced oxidation process to remove contaminants from the aquatic
environment