순환식 유전체 장벽 플라즈마 반응기를 이용한 수중 페놀 처리
Degradation of Phenol in Water Using Circulation Dielectric Barrier Plasma Reactors
0
조회
0
다운로드
2
인용
0
참고문헌
키워드
초록
Objectives: The purpose of this study was evaluating the applicability of the circulation dielectric barrier plasma process (DBD) for efficiently treating non-biodegradable wastewater, such as phenol. Methods: The DBD plasma reactor system in this study consisted of a plasma reactor (discharge, ground electrode and quartz dielectric tube, external tube), high voltage source, air supply and reservoir. Effects of the operating parameters on the degradation of phenol and $UV_{254}$ absorbance such as first voltage (60-180 V), oxygen supply rate (0.5-3 l/min), liquid circulation rate (1.5-7 l/min), pH (3.02-11.06) and initial phenol concentration (12.5-100 mg/l) were investigated. Results: Experimental results showed that optimum first voltage, oxygen supply rate, and liquid circulation rate on phenol degradation were 160 V, 1 l/min, and 4.5 l/min, respectively. The removal efficiency of phenol increased with the increase in the initial pH of the phenol solution. To obtain a removal efficiency of phenol and COD of phenol of over 97% (initial phenol concentration, 50.0 mg/l), 15 min and 180 minutes was needed, respectively. Conclusions: It was considered that the absorbance of $UV_{254}$ for phenol degradation can be used as an indirect indicator of change in non-biodegradable organic compounds. Mineralization of the phenol solution may take a relatively longer time than that required for phenol degradation.
Abstract
Objectives: The purpose of this study was evaluating the applicability of the circulation dielectric barrier plasma process (DBD) for efficiently treating non-biodegradable wastewater, such as phenol. Methods: The DBD plasma reactor system in this study consisted of a plasma reactor (discharge, ground electrode and quartz dielectric tube, external tube), high voltage source, air supply and reservoir. Effects of the operating parameters on the degradation of phenol and $UV_{254}$ absorbance such as first voltage (60-180 V), oxygen supply rate (0.5-3 l/min), liquid circulation rate (1.5-7 l/min), pH (3.02-11.06) and initial phenol concentration (12.5-100 mg/l) were investigated. Results: Experimental results showed that optimum first voltage, oxygen supply rate, and liquid circulation rate on phenol degradation were 160 V, 1 l/min, and 4.5 l/min, respectively. The removal efficiency of phenol increased with the increase in the initial pH of the phenol solution. To obtain a removal efficiency of phenol and COD of phenol of over 97% (initial phenol concentration, 50.0 mg/l), 15 min and 180 minutes was needed, respectively. Conclusions: It was considered that the absorbance of $UV_{254}$ for phenol degradation can be used as an indirect indicator of change in non-biodegradable organic compounds. Mineralization of the phenol solution may take a relatively longer time than that required for phenol degradation.
참고문헌 (31)
- 정재우, "오존 접촉 반응기의 용존 오존 농도 및 페놀 분해에 미치는 운전변수의 영향", 대한환경공학회지, 32(3), pp.241~247 (2010), 대한환경공학회
- 김성준, "고도산화기술 공정을 이용한 페놀 제거 특성 연구", 한국물환경학회지, 26(2), pp.303~310 (2010), 한국물환경학회
- Kang JW, "Application of water treatment of advanced oxidation processes (AOP)", Journal of Environmental Hi-technology, 2(1), pp.5~15 (1994)
- 김성근, "초음파와 UV에 의한 페놀 분해 특성에 관한 연구", 대한환경공학회지, 32(7), pp.649~655 (2010), 대한환경공학회
- "Phenol"[URL]
- 김동석, "전기-펜톤 공정에 의한 페놀의 전기화학적 분해", 한국환경보건학회지, 35(3), pp.201~208 (2009), 한국환경보건학회
- 박종성, "주파수 변화 및 보조제 첨가에 따른 나프탈렌 및 페놀의 초음파 분해효율 비교", 대한환경공학회지, 32(7), pp.706~713 (2010), 대한환경공학회
- 김동석, "3차원 전극을 사용한 Rhodamine B의 전기분해에 미치는 운전인자의 영향", 한국환경보건학회지, 35(4), pp.295~303 (2009), 한국환경보건학회
- 김동석, "수처리용 유전체장벽 플라즈마 반응기에 대한 기초 연구", 한국환경과학회지, 20(5), pp.623~630 (2011), 한국환경과학회
- 서민혜, "UV", H2O2, UV, H2O2, Photo-Fenton 산화방법에 의한 Citric Acid의 분해효율 비교, pp.대한환경공학회지, 2006[DOI]
- Urashima K, "Removal of volatile organic compounds from air streams and industrial flue gases by non-thermal plasma technology", IEEE Trans on Dielec and Ele Insul, 7(5), pp.602~614 (2000)
- 정재우, "기체-액체 혼합 방전에 의한 화학적 활성종 생성 특성", 대한환경공학회지, 29(5), pp.556~563 (2007), 대한환경공학회
- Panizza M, "Electrocatalytic materials for the electrochemical oxidation of synthetic dyes", Appl Catal B: Environ, 75, pp.95~101 (2007)
- 이현돈, "펄스 코로나 방전에 의한 액체상 페놀 전환 특성", 대한환경공학회지, 29(1), pp.40~46 (2007), 대한환경공학회
- Shi J, "Organic contaminants removal by the technique of pulsed high-voltage discharge in water", J Hazard Mater, 171, pp.924~931 (2009)
- APH-AWWA-WPCE, "Standard methods for the examination of water and wastewater. 19th Ed." (1995), APHA
- 백영애, "오존 및 입상활성탄 도입시 후염소 주입량 저감효과 분석", 상하수도학회지, 21(4), pp.445~452 (2007), 대한상하수도학회
- Tezcanli-Guyer G, "Degradation and toxicity reduction of textile dyestuff by ultrasound", Ultrasomnica Sonochemistry, 10, pp.235~240 (2003)
- Shen YJ, "Effect of gases and chemical catalysts on phenol degradation pathways by pulsed electrical discharges", J Hazard Mater, 150, pp.713~722 (2008)
- Grymonpré DR, "Aqueousphase pulsed streamer corona reactor using suspended activated carbon particles for oxidation: model-data comparison", Chem Eng Sci, 54, pp.3095~3105 (1999)
- 조진오, "수중 전기방전을 이용한 에틸렌디아민테트라아세트산 폐액의 처리", 대한환경공학회지, 29(5), pp.564~570 (2007), 대한환경공학회
- Li J, "Degradation of phenol in water using a gas-liquid phase pulsed discharge plasma reactor", Thin Solid Films, 515, pp.4283~4288 (2007)
- Zhang R, "Kinetics of decolorization of azo dye by bipolar pulsed barrier discharge in a three- phase discharge plasma", J Hazard Mater, 142, pp.105~110 (2007)
- 김동석, "수중 플라즈마 공정을 이용한 Rhodamine B 염료의 제거", 한국환경보건학회지, 37(3), pp.218~225 (2011), 한국환경보건학회
- Chen YS, "Pulse high-voltage discharge plasma for degradation of phenol in aqueous solution", Separation and Purification Technology, 34, pp.5~12 (2004)
- Sato M., "Aqueous phenol decomposition by pulsed discharge on the water surface", IEEE Trans on Ind Appl, 44(5), pp.1397~1402 (2008)
- 김일규, "광펜톤반응과 펜톤반응에 의한 수중 클로로페놀 분해비교연구", 상하수도학회지, 25(4), pp.463~469 (2011), 대한상하수도학회
- 김동석, "불용성 전극을 이용한 Rhodamine B의 전기화학적 탈색", 한국물환경학회지, 23(3), pp.377~384 (2007), 한국물환경학회
- 정훈섭, "오존에 의한 매립지침출수의 색도 및 COD제거", 한국수처리학회지, 17(1), pp.113~118 (2009), 한국수처리학회
- 김봉석, "유전체 장벽 방전을 이용한 오존 발생기의 전원장치 최적 설계 및 비교", 전기전자재료학회논문지, 24(1), pp.57~63 (2011), 한국전기전자재료학회
- Wang H, "Enhanced generation of oxidative species and phenol degradation in a discharge plasma system couples tith TiO2 photocatalysis", Appl. Catalysis B: Environ, 83, pp.72~77 (2008)