Phenol removal by microwave induced oxidation process in three-phase fluidized-bed reactor

For the fact that the organic in wastewater can not be treated by microwave continuously, the microwave induced oxidation process (MIOP) in three-phase fluidized-bed reactor was developed for phenol wastewater treatment. The granular activated carbon (GAG) was used as the catalyst, and the process was conducted continuously. The effects of operation conditions on phenol removal were studied in this process, and the optimum conditions were determined as follows: The amount of GAG is 25 g, the GAG size is smaller than 0.9 mm, wastewater flow rate is 2.5 L/h, phenol concentration is around 100 mg/L in neutral or acidic condition, with the air flow rate 3.74 L/h, and the microwave power is 150 W.