Comparison of Effect and Efficiency of Using Two Microwave Methods/Activated Carbon for Removal of Phenol from Water

Using activated carbon as adsorbent and microwave absorption carrier,a comparative test was done by methods of microwave regeneration and direct microwave to remove phenol from water.The results show that two methods of microwave radiation can both help activated carbon to remove phenol from water effectively.The single regeneration rate of activated carbon by microwave regeneration can reach 96%,and the repeated regeneration rate is 50% to 70%.The removal rate of phenol by direct microwave/activated carbon is increased by 7% to 20% compared with activated carbon adsorption alone,and the highest removal rate is 93% when the phenol concentration is 462 mg/L.The removal efficiency(P) of pollutants by microwave regeneration is generally better than that by direct microwave,and the activated carbon can be used repeatedly,so it is a more economic and effective method.