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유전체 배리어 방전 플라즈마를 이용한 Acid Red 27 수용액의 색도 제거 연구

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Author(s)
김병남
Issued Date
2007
URI
http://dcoll.jejunu.ac.kr/jsp/common/DcLoOrgPer.jsp?sItemId=000000000041
Abstract
The physicochemical processes of dielectric barrier discharge (DBD) such as in-situ formation of chemically active species and emission of ultraviolet (UV) light were utilized for the decolorization of an aqueous solution formed with distilled water and an azo dye Acid Red 27. The DBD reactor of this study consisted of two coaxial dielectric tubes with different diameters. Aqueous electrolyte solution was filled in the inner tube, which acted as the discharging electrode connected to AC high voltage (60 Hz). The DBD reactor was submerged in the Acid Red 27 solution that was grounded. In this case, the Acid Red 27 solution acted not only as the counter electrode but also as the cooling medium of the DBD reactor. The DBD reactor with the aqueous discharging electrode was found to be more energy-efficient for the generation of ozone than that with typical metal electrode, which may be attributed to the perfect contact of the aqueous electrode and the dielectric surface. The chemically active species (mostly ozone) produced in the DBD reactor were well dispersed in the Acid Red 27 solution using a porous gas diffuser, thereby increasing the gas-liquid contact area available for the decolorization reactions. The results have clearly shown that the DBD reactor system was very effective for decolorizing the Acid Red 27 solution. For the purpose of improving the performance of the DBD reactor system, MnO2 catalyst was added to the Acid Red 27 solution. It was found that the catalyst significantly enhanced the decolorization by decomposing ozone to produce hydroxyl radical that is more reactive.
Alternative Title
Decolorization of Aqueous Acid Red 27 Solution Using Dielectric Barrier Discharge Plasma
Affiliation
제주대학교 산업대학원
Department
산업대학원 건설환경공학과
Advisor
목영선
Awarded Date
2007. 2
Table Of Contents
Ⅰ. 서론 = 1
Ⅱ. 이론적 배경 = 3
1. DBD반응기의 오존 발생 = 3
2. 폐수의 오존처리 = 4
Ⅲ. 실험장치 및 방법 = 6
Ⅳ. 실험결과 및 고찰 = 11
1. 전극 재질이 오존 발생에 미치는 영향 = 11
2. DBD 반응기를 이용한 색도저감 = 19
Ⅴ. 결론 = 22
참고문헌 = 23
Degree
Master
Publisher
제주대학교 산업대학원
Citation
김병남. (2007). 유전체 배리어 방전 플라즈마를 이용한 Acid Red 27 수용액의 색도 제거 연구
Type
Dissertation
Appears in Collections:
Graduate School of Industry > Environmental Engineering
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