한국입자에어로졸학회지 (Particle and aerosol research)

  • 제6권4호
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  • Pages.185-192
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  • 2010
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  • 1738-8716(pISSN)
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  • 2287-8130(eISSN)
한국입자에어로졸학회 (Korean Association for Particle and Aerosol Research)
권호 표지

탄소섬유 이오나이저를 적용한 활성탄소섬유 필터의 바이오에어로졸 항균 및 집진 성능평가

Inactivation and Filtration of Bioaerosols Using Carbon Fiber Ionizer Assisted Activated Carbon Fiber Filter

  • 김두영 (연세대학교 기계공학과) ;
  • 박재홍 (연세대학교 기계공학과) ;
  • 황정호 (연세대학교 기계공학과)
  • Kim, Doo Young (Department of Mechanical Engineering, Yonsei University) ;
  • Park, Jae Hong (Department of Mechanical Engineering, Yonsei University) ;
  • Hwang, Jungho (Department of Mechanical Engineering, Yonsei University)
  • 투고 : 2010.09.27
  • 심사 : 2010.12.09
  • 발행 : 2010.12.30
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초록

This paper reports that the installation of a carbon fiber ionizer in front of an activated carbon fiber(ACF) filter enhanced the antibacterial efficiency. In addition, the effect of the ionizer on the filtration of bioaerosols is reported. Negative air ions from the ionizer were used as antibacterial agent. The test bacteria(Escherichia coli) were aerosolized using an atomizer and were deposited on the ACF filter media for 10 minutes. E. coli deposited on the filter were exposed to negative air ions for 0, 1, 5 and 10 minutes. Then they were separated from the ACF filter by shaking incubation with nutrient broth for 4 hours. The separated E. coli were spread on nutrient agar plates and incubated at $37^{\circ}C$ for 1~3 days. The antibacterial efficiency of E. coli was measured using a colony counting method. The antibacterial efficiencies of E. coli exposed to negative air ions for 1, 5 and 10 minutes were 14%, 48% and 71%, respectively. The filtration efficiency was evaluated by measuring the number concentration of bioaerosols at the upstream and downstream of the filter media. The increase of filtration efficiency by air ions was 14%, that is similar to the 17% filtration efficiency by none air ions. The ozone concentration was below the detection limit (under 0.01ppm) when the carbon fiber ionizers were on.

키워드

참고문헌

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