UV-C燈具應用於空氣品質改善的可行性分析

本研究目的為探討隨著國內日益重視空氣品質的要求，以目前市場上的空氣淨化技術中的光化學鍵解技術，除了光觸媒-二氧化鈦技術外，是否有其他的技術演變應用，並探討其淨化的可行性及是否有二次污染物產生。甲醛、甲苯與丙酮等有機氣體與二氧化碳是室內空氣品質中最常見的污染物，所以本研究此四種汙染物作為首要的研究對象，利用一套可控制溫度、風量及系統風速之空氣處理系統中安裝UV-C燈具設備來淨化空氣，達到去除汙染物的功能。實驗結果顯示，UVC燈具對甲苯擁有最好的去除率，其次依序為甲醛、丙酮、二氧化碳，其於UVC燈具運轉4Hr後的實際去除率分別為60.9%、48.7%、41.6%、18%，並得知UVC燈具應用於常溫條件與低風速的操作區段擁有較好的汙染物去除率。本研究確實能在使用UVC燈具的條件下，達到去除汙染物的功效，此將大大的提升未來應用上的可行性。

關鍵字

UV-C ；紫外光；揮發性有機氣體；室內空氣淨化

並列摘要

The purpose of this study is twofold: to explore whether there are other applications of advanced technologies in addition to the titanium dioxide photocatalyst technology among current commercially available photochemical bond dissociation technologies considering the increasing focus on air quality in Taiwan’s regulatory requirements and to examine the viability of the proposed technology for air purification as well as whether it generates secondary pollutants. As organic gases like formaldehyde, toluene and acetone as well as carbon dioxide are the most common pollutants that affect indoor air quality, this study investigates these four pollutants as primary research targets using an air processing system that can control temperature, air volume and in-system air speed and is installed with UV-C lamp equipment for air purification and consequent removal of pollutants. Experiment results show that the UVC lamps can most effectively remove formaldehyde, followed by toluene, acetone and carbon dioxide. The actual removal rates after the UVC lamps have operated for 4 hours are 60.9%, 48.7%, 41.6% and 18%, respectively, indicating that UVC lamps can achieve better pollutant removal rates when they are applied in operating areas with normal temperature conditions and low air speeds. This study confirms that the use of UVC lamps can effectively remove pollutants. This discovery will significantly improve the viability of UVC lamps in future applications.

並列關鍵字

UV-C ； UV light ； volatile organic gas ； indoor air purification

參考文獻

[1] Destaillats, H., M. Sleiman, D. P. Sullivan, C. Jacquiod, J. Sablayrolles, L. Molins, “Key parameters influencing the performance of photocatalytic oxidation (PCO) air purification under realistic indoor conditions,” Applied Catalysis B: Environmental 128, 159-170(2012)

[2] Filtration+Separation, 2013, “Practical filtration: Improving indoor air quality,” January/February 34-35

[3] Gilbert, N. L., M. Guay, D. Gauvin, R. N. Dietz,C. C. Chan, B. Levesque, “Air change rate and concentration of formaldehyde in residential indoor air,” Atmospheric Environment 42, 2424–2428(2008)

[4] Katsoyiannis, A. and C. Bogdal, “Interactions between indoor and outdoor air pollution – Trends and scientific challenges,” Environmental Pollution 169, 150-151(2012)

[5] Kolarik, B., P. Wargocki, A. Skorek-Osikowska, A. Wisthaler, “The effect of a photocatalytic air purifier on indoor air quality quantified using different measuring methods,” Building and Environment 45, 1434–1440(2010)

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UV-C燈具應用於空氣品質改善的可行性分析

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