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2019 Vol.13, Issue 6 Preview Page

Research Article

An Analysis on the Effect of Mold Sterilization in Apartment Using 405 nm Visible Light LED

405 nm 가시광선 LED를 이용한 공동주택 내 곰팡이 살균효과에 대한 분석

Ji-Hi Kim1
,
Jong-Il Bang2
,
An-Seop Choi3
,
Min-Ki Sung3*
김 지희1
,
방 종일2
,
최 안섭3
,
성 민기3*
1Master candidate, Department of Architecture Engineering, Sejong University
2PhD candidate, Department of Architecture Engineering, Sejong University
3Professor, PhD, Department of Architecture Engineering, Sejong University
1세종대학교 건축공학과 석사과정
2세종대학교 건축공학과 석박사통합과정
3세종대학교 건축공학과 교수
* Corresponding Author
30 December 2019. pp. 590-598
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Abstract

Recent increase of interest on indoor air quality has brought attention to indoor pollutant control. In particular, pollutant damage in residential area such as apartments can be critical to human health since occupational time in apartment is relevantly long. Studies related to pollutant control in apartments are being conducted. One of the pollutant control method that can be applied to apartment is using Ultra Violet (UV). However, direct exposure to UV can accelerate skin aging and excessive exposure to UV can cause skin cancer. In this study, 405 nm LED which is visible ray and has slight portion of UV wave length, was used to sterilize mold in apartment. The 405 nm LED module was operated for 15, 30, and 45 minutes at a distance of 5 cm on the molded wall. In addition, 405 nm LEDs were operated directly for 60 minutes on molded PDA plates to check the sterilization effect. Result showed that as irradiation time increased sterilization rate also increased which indicates that enough irradiation of 405 nm LED in apartment can sterilize mold and can be innocuous method for controlling pollutant.

Keywords
405 nm LED
Apartment
Mold Damage

키워드
405 nm LED
공동주택
곰팡이 피해
살균
References
1
Kumar, A., Ghate, V., Kim, M.J., Zhou, W., Khoo, G.H., Yuk, H.G. (2015). Kinetics of bacterial inactivation by 405 nm and 520 nm light emitting diodes and the role of endogenous coproporphyrin on bacterial susceptibility. Journal of Photochemistry and Photobiology B: Biology, 149, 37-44.
10.1016/j.jphotobiol.2015.05.00526036659
2
Maclean, M., MacGregor, S.J., Anderson, J.G., Woolsey, G. (2009). Inactivation of bacterial pathogens following exposure to light from a 405-nanometer light-emitting diode array. Appl. Environ. Microbiol., 75(7), 1932-1937.
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3
Mok, C.K., Lee, N.H. (2008). Distribution of ultraviolet intensity and UV leaking of commercial UV sterilizers used in restaurants. Korean Journal of Food Science and Technology, 40(2), 228-233.
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Sung, M.K., Kato. S., Yanagi, U., Kim, M.S., Harada, M. (2011). Disinfection performance of ultraviolet germicidal irradiation systems for the microbial contamination on an evaporative humidifier. HVAC&R Research, 17(1), 22-30.
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Information
  • Publisher :Korean Institute of Architectural Sustainable Environment and Building Systems
  • Publisher(Ko) :한국건축친환경설비학회
  • Journal Title :Journal of Korean Institute of Architectural Sustainable Environment and Building Systems
  • Journal Title(Ko) :한국건축친환경설비학회논문집
  • Volume : 13
  • No :6
  • Pages :590-598
  • Received Date : 2019-12-04
  • Revised Date : 2019-12-18
  • Accepted Date : 2019-12-24
  • DOI :https://doi.org/10.22696/jkiaebs.20190051
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