关键词: 微波, 臭氧, 苯酚, 协同效应, 动力学

Abstract:

The degradation of phenol in aqueous solution with the combination of microwave and ozone（MW/O₃）was studied with laboratory-scale experiments.Effects of ozone dose，pH value，initial phenol concentration and reaction temperature on the reaction kinetics were investigated.In all cases，the degradation of phenol follows a pseudo-first-order kinetics relation.MW/O₃ combined technology is favorable for enhancing the removal efficiency of phenol，with the enhancement factor of the first-order kinetics constant being around 3.6.Experimental results showed that the synergetic effect of MW/O3 combined technology was obvious and up to 99 % of phenol was removed after 30 min reaction with initial phenol concentration of 100 mg·L^-1，ozone dose of 1.1 mg·min^-1，pH value of 9—11，and reaction temperature of 25℃.

Key words: 微波, 臭氧, 苯酚, 协同效应, 动力学