Xenon flashlamp와 광촉매를 이용한 타원형 반응기의 살균 특성에 관한 연구

다국어 초록 (Multilingual Abstract)

In this paper, we invented a new and unique technique for the sterilization of Escherichia coli(E. coli) in polluted water. We applied a rich ultra-violet(UV) light from pulsed xenon flashlamp and photocatalyst(TiO₂) to sterilize E. coli in polluted water. This method based on the use of UV light and photocatalyst is eco-friendly and does not cause secondary pollution. The proposed elliptical reactor is able to concentrate on quartz sleeve coated TiO₂ or general quartz sleeve. The primary objective of our research was to determine the important parameters such as pulse repetition rate and input voltage and to know on the sterilizing efficiency of quartz sleeve coated TiO₂ and general quartz sleeve. We obtained to achieve 99.999% sterilization in as little as 6 pulses at 800 V in case of quartz sleeve coated TiO₂, and 10 pulses at 800 V in case of general quartz sleeve for 5 minutes. Although transmitted light of quartz sleeve coated TiO₂ is deceased, the sterilizing efficiency is increased by 40% than general quartz sleeve. The reason of high sterilizing efficiency is that generated hydroxyl radical(OH) by photocatalyst and is able to concentrate light at a focus by using elliptical reactor.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 실험장치 및 방법
• 3. 결과 및 검토
• 3. 결론
• 참고문헌
• 저자소개

참고문헌 (Reference)

1 박진구, "친수 유리용 TiO2 박막 개발" 한국공업화학회 13 (13): 104-108, 2002

2 나재운, "졸-겔법에 의해 제조한 티타니아 졸의 살균 및 탈취 특성" 한국공업화학회 15 (15): 681-685, 2004

3 홍진관, "공조시스템에서 UV Ray의 조사 및표면살균성능에 관한 실험적 연구" 대한설비공학회 16 (16): 250-257, 2004

4 이규환, "UV/TiO2 수처리 공 정에서의 살균에 관한 연구" 27 (27): 2007

5 김시욱, "UV-TiO2 광촉매 반응기를 이용 한 미생물의 살균효과" 14 : 125-137, 1998

6 홍대일, "TiO2 광촉매 활성에서 소성온도의 영향" 한국환경과학회 14 (14): 889-896, 2005

7 Bertani, G., "STUDIES ON LYSOGENESIS I.: The Mode of Phage Liberation by Lysogenic Escherichia coli" 62 (62): 293-300, 1951

8 Matsunaga, T, "Photoelectrochemical sterilization of microbial cells by semiconductor powders" 29 (29): 211-214, 1985

9 Ollis, D. F., "Photocatalytio destruction of water contaminants" 25 (25): 1522-1529, 1995

10 Ha, H., "Photo-catalytic degradation of formic acid via metal-supported titania" 122 (122): 217-221, 1996

11 Jeffrey Brinker, "Fundamentals of sol-gel dip-coating" 4 : 1231-1242, 1994

12 Alexander Sadiku, "Fundamentals of Electric Circuits" Mc Graw Hill 202-205, 1999

13 Vanosdell, D., "Defining the effectiveness of UV lamps installed in circulating air ductwork" 2002

14 Laroussi, M., "Decontamination of Water by Excimer UV Radiation" 30 (30): 2002

15 LeChevallier, M. W., "Coliform regrowth in drinking water" 82 (82): 74-86, 1990