Degradation of 1,4-Dioxane Using Ozone Oxidation with UV Irradiation （Ozone/UV） Treatment  

作　　者：Masahiro Asano Naoyuki Kishimoto Hitoshi Shimada Yoshirou Ono 

机构地区：[1]Department of Environmental Solution Technology, Faculty of Science and Technology, Ryukoku University, Shiga 5202194,Japan [2]Department of Design and Architecture, Kyoto Institute of Technology, Kyoto 6068585, Japan

出　　处：《Journal of Environmental Science and Engineering(A)》2012年第3期371-379,共9页环境科学与工程（A）

摘　　要：A method for oxidative degradation of 1,4-dioxane （1,4-D） in waste water using a combination of ozone oxidation with UV irradiation （ozone/UV） treatment was investigated. The results showed that 1,4-D was degraded by ozone/UV treatment up to 90 min. The optimum concentration for the injected ozone gas was about 40 g·m^3 under a constant level of UV irradiation. Furthermore, solid phase extraction and GC-MS analysis showed no specific or reproducible peaks due to by-products of 1,4-D. It was therefore concluded that 1,4-D was completely degraded by ozone/UV treatment. In contrast, the amount of 1,4-D remaining decreased slowly in the presence of HCOf or CI. It was suggested that the degradation of 1,4-D, which results from .OH oxidation, was retarded by the presence of HCO3 or CI, which act as radical scavengers.

关 键 词：1 4-dioxane （1 4-D） advanced oxidation processes （AOPs） ultraviolet （UV） OZONE ozone oxidation with UVirradiation （ozone/UV） treatment radical scavenger. 

分 类 号：X703[环境科学与工程—环境工程] TS103.823[轻工技术与工程—纺织工程]