ISSN : 1738-4125(Print)
ISSN : 2287-7509(Online)
ISSN : 2287-7509(Online)
오존촉매 필터와 광촉매 필터의 오존제거특성
Characteristics of Residual Ozone Decomposition of Commercial Ozone Decomposition Catalyst (ODC) Filter and Photocatalyst Filter
Received 18 July 2004, accepted 4 October 2004
Abstract
Decomposition of ozone at room temperature was investigated by comparing between commercialmonolithic ozone decomposition catalyst (ODC; MnO2) filter and monolithic photocatalyst (TiO2) filter. Theeffects of residence time, UV (ultraviolet, A type) irradiation, and upstream ozone concentration on theozone conversion were discussed. UV ray was irradiated using four BLB (black light blue) lamps (λ: 310∼400nm) of constant intensity. The upstream concentration of ozone was controlled by an electrostatic ozonegenerator. For ODC performance, the presence of UV irradiation slightly affected initial ozone conversioncompared with no UV irradiation condition. However, for photocatalyst, the ozone was highly decomposed inthe presence of UV irradiation. Long time performances of the both catalysts were evaluated by a real-timeozone monitoring system during 120 hours. The results show that the UV irradiation enhanced the ozoneconversion for the both catalysts.
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