O3/H2O2 고급산화공정에서 초기 pH 변화에 따른 1,4-dioxane의 제거 특성 연구
A Study on the Degradation Characteristics of 1,4-dioxane at Different Initial pHs with Advanced Oxidation Process Using O3/H2O2
2
조회
0
다운로드
2
인용
0
참고문헌
초록
Abstract
The pH effects on the removal of 1,4-dioxane and the biodegradability enhancement of dioxane contaminated waterwere investigated using O3/H2O2 based advanced oxidation process. Experiments were conducted using a bubble columnreactor under different initial pH. The O3/H2O2 process effectively converted 1,4-dioxane to more biodegradableintermediates, which had a maximum BOD5 enhancement at pH 11 within the experimental range, precisely, when theinitial pH increased, BOD5 enhanced. However, in case of removal efficiencies of 1,4-dioxane during O3/H2O2 oxidation,the optimum condition was shown at pH 9 compared with pH 6 and 11. TOC and COD values were not largelychanged for all reaction time. From the results of 1,4-dioxane removal efficiency, TOC, COD, and BOD5 enhancementwith reaction time, it was surely observed that 1,4-dioxane was just converted to biodegradable materials, not completelyoxidized to carbon dioxide.
참고문헌 (17)
- "Mechanism of thedegradation of 1 4-dioxane in dilute aqueous solutionusing the UV", hydrogen peroxide process, 1998, pp.32, 1588~1595
- "Oxidation and biodegradability enhancement of 1", pp.4~ (1812)
- "정수처리시스템에서 1 4-dioxane의 제거방안", 26(11), pp.1238~1243 (2004)
- "In Proceedings of the Sixth InternationalSymposium on Chemical Oxidation Technologyfor the Nineties" (1996), Vanderbilt University
- "Photocatalyticdegradation of 1 4-dioxane in aqueous solution", pp.55~58 (1997)
- "A study on the relationshipbetween biodegradability enhancement andoxidation of 1", 38, pp.4 2596~2604 (2004), and Mohseni
- "오존산화에 의한 정수장의Microcystin의 제거 특성 연구", 29(1), pp.74~83 (2003)
- "UV", TiO2 시스템을 이용한Rhodamine B의 색도 제거, 2002, pp.28(5), 59~64
- "Ozonation of water Selectivity and Rate of Oxidation of Solutes", pp.73~85 (1979)
- "editorsStandard Methods for the Examination ofWater and Wastewater" (1998)
- "H2O2 determination by 13-method and byKMnO4 titration", pp.2915~2921 (1994)
- "오존에 의한 암모니아 산화시 과산화수소가 미치는 영향", pp.1~7 (2001)
- "Reactivityof th Hydroxyl Radical in Aqueous Solutions" (1973)
- "과산화수소를 첨가한오존처리 탄산기에 의한 저해효과" (1980), 日本化學會第42秋季年會
- "Rate constants of reactions of ozone with organic andinorganic compounds in water 3", i(rganic compoundsand radicals), pp.993~000 (1985)
- "Mechanism for Oxidation of LowerAlcohols with Hydrogen Peroxide Catalyzed Ozonation" (1985)
- "4-dioxan e의 고도산화 및생화학적 분해 특성 연구", 25(2), pp.240~247 (2003)