关键词: 臭氧, 催化, 活性炭, 活性组分, 丁香酚 

Abstract: The catalytic ozonation of eugenol simulated wastewater in the presence of activated carbon load different active components were investigated under different operating conditions. The prepared catalysts were characterized by scanning electron microscopy, X-ray diffractometry and specific surface area analyzer.The effects of active components, loading content,catalyst dosage and initial pH on CODcr removal from eugenol simulated wastewater by catalytic ozonation were evaluated. And kinetics model of the CODcr degradation were explored.Characterization of catalyst indicated that the iron,copper,cerium and nickel loaded on activated carbon were mainly in the form of ferric oxide,copper oxide, ceria,nickel oxide,respectively,which have obvious catalytic activity and remarkably improves the removal efficiency of CODcr in the process of ozonation degradation of eugenol simulated wastewater.The order of catalytic activity is Fe / AC> Ce / AC> Cu / AC> Ni / AC.The presence of ferric oxide on activated carbon positively contributed to its catalytic activity in ozonation of eugenol . Initial pH of 11,iron loading content of 3% and catalyst dosage of 0.3g/L achieved highest eugenol removal of 88.90% among all the tried conditions in 60min as compared with AC catalytic oxidation and ozone alone, the eugenol removal were further improved by 21.13% and 29.95%, respectively. The repeated use six times of the catalyst proved that the Fe/AC catalyst had a good reusability and stability.Finally,apparent second-order kinetics model of the CODcr degradation in the eugenol simulated wastewater with ozone alone，AC，Fe/AC，Ce/AC，Cu/AC and Ni/AC oxidation were established,which indicated that activated carbon-loaded active components effectively increase the kinetic rate of the reaction.

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