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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 李慧梅 | |
| dc.contributor.author | Szu-Ying Lin | en |
| dc.contributor.author | 林思瑩 | zh_TW |
| dc.date.accessioned | 2021-06-13T01:06:38Z | - |
| dc.date.available | 2007-07-27 | |
| dc.date.copyright | 2007-07-27 | |
| dc.date.issued | 2007 | |
| dc.date.submitted | 2007-07-20 | |
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| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/29420 | - |
| dc.description.abstract | 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。 | zh_TW |
| dc.description.abstract | 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 range of ηYeast is 49.2±16.2%, and ηYeast decreased with RH. The average of control efficiency in decreasing order is ηNAI/PCO/Filter > ηNAI/Filter > ηPCO/Filter. The optimum RH for control of the bioaerosols investigated in this study was found to be 50%. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-13T01:06:38Z (GMT). No. of bitstreams: 1 ntu-96-R94541122-1.pdf: 2210238 bytes, checksum: 395ae6a8a1470089375b695a92d2bd5d (MD5) Previous issue date: 2007 | en |
| dc.description.tableofcontents | 第1章 緒論 1
1-1 研究緣起 1 1-2 研究目的 4 1-3 研究內容與方法 4 1-4 研究流程 5 第2章 文獻回顧 6 2-1 生物氣膠學的定義 6 2-2 生物氣膠之種類 7 2.2.1 細菌氣膠 7 2.2.2 真菌氣膠 8 2.2.3 病毒氣膠 10 2-3 生物氣膠對人體之影響 14 2.3.1 生物分解對於物品的破壞 20 2.3.2 細菌氣膠對於人體的危害 22 2.3.3 真菌氣膠對於人體的危害 25 2.3.4 病毒氣膠對於人體的危害 27 2-4 生物氣膠採樣量測技術 33 2.4.1 生物氣膠採樣技術 33 2.4.2 生物氣膠培養技術 34 2.4.3 新興生物氣膠監測技術---RT-PCR 35 2-5 室內生物性氣膠濃度之相關建議值 36 2-6 室內生物氣膠控制技術之簡介 37 2.6.1 紫外光控制技術 38 2.6.2 光觸媒控制技術 39 2.6.3 負離子控制技術 42 2.6.4 臭氧控制技術 43 2.6.5 抗菌濾材控制技術 43 第3章 實驗設備與方法 45 3-1 實驗系統 45 3.1.1 實驗設備 50 3.1.2 生物氣膠培養單元 53 3.1.3 生物氣膠產生單元 57 3.1.4 生物氣膠採樣單元 58 3-2 前置實驗 60 3-3 生物氣膠於光觸媒結合負離子反應器之過濾效率之研究方法 61 3-4 實驗計算方法及指標參數 63 第4章 結果與討論 66 4-1 基本特性測試 66 4.1.1 空白實驗 66 4.1.2 光觸媒濾材之顯微攝影觀察 67 4.1.3 負離子濃度測試 70 4.1.4 生物氣膠背景濃度 72 4-2 實驗結果分析 75 4.2.1 不同相對濕度下光觸媒濾材對生物氣膠的過濾效率 77 4.2.2 各物種的總控制效率 79 4.2.3 使用負離子控制生物氣膠的增進效率 83 4.2.4 使用光觸媒控制生物氣膠的增進效率 89 4.2.5 使用負離子結合光觸媒控制生物氣膠的增進效率 94 4.2.6 各物種總控制效率的比較 103 4-3 本研究結果與其他控制方法比較 108 第5章 結論與建議 110 5-1 結論 110 5-2 建議 113 | |
| dc.language.iso | zh-TW | |
| dc.subject | 相對濕度 | zh_TW |
| dc.subject | 光觸媒 | zh_TW |
| dc.subject | 空氣負離子 | zh_TW |
| dc.subject | 生物氣膠 | zh_TW |
| dc.subject | Relative humidity | en |
| dc.subject | NAI | en |
| dc.subject | PCO | en |
| dc.subject | Bioaerosol | en |
| dc.title | 結合光觸媒與空氣負離子控制生物氣膠之研究 | zh_TW |
| dc.title | Bioaerosol Control Assessment：Combination of Photo Catalytic Oxidation and Negative Air Ions | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 95-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 張靜文,黃小林 | |
| dc.subject.keyword | 生物氣膠,光觸媒,空氣負離子,相對濕度, | zh_TW |
| dc.subject.keyword | Bioaerosol,PCO,NAI,Relative humidity, | en |
| dc.relation.page | 128 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2007-07-23 | |
| dc.contributor.author-college | 工學院 | zh_TW |
| dc.contributor.author-dept | 環境工程學研究所 | zh_TW |
| 顯示於系所單位： | 環境工程學研究所 | |
文件中的檔案：
| 檔案 | 大小 | 格式 | |
|---|---|---|---|
| ntu-96-1.pdf 未授權公開取用 | 2.16 MB | Adobe PDF |
系統中的文件，除了特別指名其著作權條款之外，均受到著作權保護，並且保留所有的權利。