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http://dx.doi.org/10.5695/JKISE.2008.41.2.076

Improvement of a UV/Ozone Duplex Sterilizer  

Jee, Jung-Eun (Department of Materials Science and Engineering Plasma Materials Research Center, Kunsan National University)
Yang, Won-Kyun (Department of Materials Science and Engineering Plasma Materials Research Center, Kunsan National University)
Park, Eun-Chul (Department of Materials Science and Engineering Plasma Materials Research Center, Kunsan National University)
Kim, Kang-Suk (Department of Materials Science and Engineering Plasma Materials Research Center, Kunsan National University)
Joo, Jung-Hoon (Department of Materials Science and Engineering Plasma Materials Research Center, Kunsan National University)
Publication Information
Journal of the Korean institute of surface engineering / v.41, no.2, 2008 , pp. 76-82 More about this Journal
Abstract
We investigated sterilization characteristics of UV lights by counting the number of bacteria units with varying sterilization time and distance from the light source. We focused on an idea that UV light of 184.9 nm could generate ozone and developed a new sterilizer. The UV-ozone duplex system sterilized bacteria faster than UV-only sterilizers. To reduce shadowing effects by target objects, we used UV transparent quartz plate as a support and put a reflecting plate. Distribution of UV irradiation intensity and ozone supply were analyzed by a 3D model and measured by a semiconductor UV sensor. But even with an Al reflector, multi-layered pens could not be treated properly from UV irradiation only. Ozone generating lamp could treat more uniformly multi-layered pens with a stirring fan by supplying ozone to shadowed surfaces.
Keywords
UV-Ozone sterilizer; Reflecting plate; Transmitting plate; Bacteria; Numerical model;
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