رسالة جامعية
結合光觸媒與空氣負離子控制生物氣膠之研究 ; Bioaerosol Control Assessment：Combination of Photo Catalytic Oxidation and Negative Air Ions
| العنوان: | 結合光觸媒與空氣負離子控制生物氣膠之研究 ; Bioaerosol Control Assessment：Combination of Photo Catalytic Oxidation and Negative Air Ions |
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| المؤلفون: | 林思瑩, Lin, Szu-Ying |
| المساهمون: | 李慧梅, 臺灣大學：環境工程學研究所 |
| سنة النشر: | 2007 |
| المجموعة: | National Taiwan University Institutional Repository (NTUR) |
| مصطلحات موضوعية: | 生物氣膠, 光觸媒, 空氣負離子, 相對濕度, Bioaerosol, PCO, NAI, Relative humidity |
| الوصف: | 現代人大部分的時間都處於室內環境，尤其是都市生活；因此，室內空氣品質與健康、舒適的生活息息相關，而生物氣膠即為影響室內空氣品質重要的因子之一。 本研究主要內容在探討使用光觸媒（PCO）、空氣負離子（NAI）及光觸媒結合空氣負離子（NAI/PCO）在不同相對濕度下對生物氣膠的控制效果。在生物氣膠方面，選擇了λ vir、E. coli、C. famata三種生物氣膠以釐清光觸媒及空氣負離子對三種生物氣膠控制效率的不同。 研究結果發現，在低相對濕度的環境下λ vir、C. famata的活性會受到影響，而對於E. coli就沒有顯著的影響；大致上，在各相對濕度下，三種控制方法的增進效率大小依序為ηenhanced,NAI/PCO > ηenhanced,NAI > ηenhanced,PCO，其中增進的效果以λ vir最佳，在相對濕度50%及70%時，ηenhanced,NAI/PCO,λ vir的平均值都達到34.2%；對E. coli及Yeast而言，在已開啟負離子的狀況下，再開啟光觸媒，對生物氣膠的控制並沒有幫助。 總控制效率的部分，E. coli的範圍約在30.7±5.0%之間，相對濕度的改變對各控制方法都沒有很顯著的影響；λ vir處理效率的範圍約在68.0±16.6%之間，控制效果受到相對濕度相當大的影響，相對濕度越高，控制效果越好；Yeast處理效率的範圍約在49.2±16.2%之間，隨著相對濕度越高，控制效率越低。以總控制效率的平均值而言，三種生物氣膠都呈現ηNAI/PCO/Filter > ηNAI/Filter > ηPCO/Filter的結果。本研究也發現，在相對濕度50%時，各生物氣膠的整體控制效果最佳。 ; Nowdays, people stay indoors most of time. This is especially ture for the residents in metropolitan. Therefore, the IAQ（Indoor Air Quality）has great impact on human health and comfortable life. Bioaerosols play an important role on IAQ. The purpose of this research was to evaluate bioaerosols control technology by the combination of photocatalytic oxidation (PCO) and negative air ions (NAI). To investigate the difference of the results of using PCO and NAI to control different bioaerosols, this research chose λ vir, E. coli and C. famata as the experimental bioaerosols. The results of this research show that the activity of λ vir and C. famata decreased in the lower relative humidity (RH) environment which is at 30% RH. But the effect of RH is not obvious to E. coli. In general, the enhanced efficiency in decreasing order is ηenhanced,NAI/PCO > ηenhanced,NAI > ηenhanced,PCO. The ηenhanced,NAI/PCO,λ vir is 34.2% when RH is 50% and 70%, which is the highest among all of the enhanced efficiency. However, there is no difference between ηenhanced,NAI/PCO and ηenhanced,NAI for both E. coli and Yeast. The results from control efficiency show that the range of ηE. Coli is 30.7±5.0% and the effect of RH is not obvious. The range of ηλ vir is 68.0±16.6%, and ηλ vir increased with RH. The ... |
| نوع الوثيقة: | thesis |
| وصف الملف: | 2210238 bytes; application/pdf |
| اللغة: | Chinese English |
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| الإتاحة: | http://ntur.lib.ntu.edu.tw/handle/246246/62780Test http://ntur.lib.ntu.edu.tw/bitstream/246246/62780/1/ntu-96-R94541122-1.pdfTest |
| رقم الانضمام: | edsbas.B38E181C |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |