Study on the Improvement of Work Environment by Photocatalyst in the Laboratory Animal Room
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概要
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The presence of odorants and airborne bacterium within animal laboratories posed personal discomfort as well as health risks to researchers and their staff. This led to the development of photo-catalytic based filtration technology, capable of absorbing and decomposing odors in addition to sterilizing airborne bacterium, for an indoor air-circulation device. We performed several experiments to determine its characteristics. The result was a detection of tri-methylamine, which was found to contribute 94.6% of the odor in the laboratory animal room. Tri-methylamine is an important indicator in the odor environment for researchers and working staff. During field tests within animal laboratories, the experimental filtration system removed about 82% of the tri-methylamine and 51% of the ammonia immediately, and decreased odor concentration from 12 to 5 or less (by the triangle odor bag method), at which point no odor was perceived. The odor concentration at the outlet of the device was maintained at less than 5 during a trial period of two months. At the same time, the filtration device removed 64–95% of all airborne bacteria within the animal laboratories. In addition, the photo-catalytic filter that attained adsorptive saturation was successfully regenerated by using the photo-catalytic ability.The results of experiment demonstrated that the test device is more effective in absorbing and removing odor and bacteria in the animal laboratory rooms than similar devices. The photo-catalytic filtration system was effective for removing odor constantly being generated in the mouse animal room.
- 人間-生活環境系学会の論文
人間-生活環境系学会 | 論文
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