고도산화처리공정(AOPs)을 이용한 1,4-dioxane의 분해특성 연구

Abstract

1,4-dioxane is an EPA priority pollutant found in contaminated groundwater and industrial effluents. The common treatment techniques are not effective for 1,4-dioxane degradation. It is required to find an efficient degradation method and understand the degradation mechanism of 1,4-dioxane during reaction. In this study, the effect of the parameters such as initial concentration of 1,4-dioxane, H₂O₂ and FeSO₄ dosages, and UV light intensity on 1,4-dioxane degradation has been examined. Under optimal conditions, above 90% of 1,4-dioxane is degraded by a combined method(UV with H₂O₂ and FeSO₄), while 8% of 1,4-dioxane is degraded by FeSO₄ alone. It was proposed that 1,4-dioxane was oxidized by OH radicals and sequentially led to formation of malonic acid, formic acid and acrylic acid. Based on the experimental results of 1,4-dioxane, the application of advanced oxidation processes appears to be a promising alternative for 1,4-dioxane removal in various environment systems.