Phenol Degradation by Heterogeneous Fenton-like Reaction under Microwave Field

Phenol degradation by heterogeneous Fenton-like reaction under microwave field was investigated.The experiments of phenol degradation under microwave field and normal condition were conducted,and the reaction kinetic curves were determined.The effects of reaction temperature and microwave power on the removal rate of phenol and TOC were discussed.The reaction activation energies required for phenol degradation were estimated.Results showed that application of microwave radiation can improve the degradation rate and the removal rate of phenol as well as the removal rate of TOC in the heterogeneous Fenton-like reaction.Overall kinetics of the phenol degradation was nearly third order.The reaction activation energies under the microwave field were lower than that without microwave irradiation.When the microwave power were 200 and 600 W respectively,the corresponding reaction activation energies under the microwave field were 17.175 and 15.042 kJ/mol,respectively which decreased 11.48% and 22.48% in comparison with that when no microwave was used.