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研究生： 吳翰林
Wu, Han-Lin
論文名稱： 氣提法數學模式之研究
A Mathematical Model Study for Air Sparging
指導教授： 郭明錦
Kuo, Min-Chin
學位類別： 碩士
Master
系所名稱： 工學院 - 資源工程學系
Department of Resources Engineering
論文出版年： 2008
畢業學年度： 96
語文別： 中文
論文頁數： 71
中文關鍵詞： 揮發性有機物 、地下水 、氣體通道 、氣提法
外文關鍵詞： Air Channel, Air Sparging, Groundwater, VOCs
相關次數： 點閱：50  下載：1 
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    • 針對台灣地下水常見之揮發性有機污染物，氣提法是一種實用的整治技術。本論文使用氣體通道數學模式，以甲苯為例，了解氣提法對地下水甲苯污染物之移除效率。
    本論文氣提法數學模式研究發現，甲苯移除效率隨著注氣流量及氣體飽和度的上升而增加。

    In-situ air sparging is a widely used remedial technique to remove volatile organic compounds (VOCs) from groundwater. Using toluene as an example, this study applied the air channel model to understand the toluene removal efficiency through in-situ sparging.
    The toluene removal efficiency increase as the air flow rate and the air saturation increase.

    目 錄 摘要………………………………………………………………I 誌謝………………………………………………………………III 目錄………………………………………………………………IV 表目錄………………………………………………………… VI 圖目錄……………………………………………………………VII 第一章 前言……………………………………………………1 1-1 研究緣起………………………………………………1 1-2 研究目的………………………………………………3 第二章 文獻回顧………………………………………………4 2-1 氣提法整治技術………….…………………………4 2-2 氣泡流動幾何概念………………………………………8 2-3 氣提法數學模擬…………………..…………………11 第三章 研究方法….…………………………………………16 3-1 Elder氣體通道數值模擬系統之建立………………16 3-2砂箱試驗.. ……….…………………….……………21 3-2-1 砂箱試驗裝置……………………………………21 3-2-2 氣體飽和度與氣體通道量測……………………25 3-3 網格大小與模式應用研究………………………………27 第四章 結果與討論……………………………………………28 4-1 砂箱試驗結果…………………………………………28 4-1-1 氣體飽和度………………………………………28 4-1-2 氣體通道大小……………………………………32 4-2 模式輸出結果…………………………………………39 4-2-1輸入參數設定……………………………………39 4-2-2 污染物移除模擬結果……………………………42 4-3 網格設定與輸出結果…………………………………46 4-3-1 網格切割…………………………………………46 4-3-2各 模式輸出結果…………………………………50 第五章 結論與建議……………………………………………54 5-1 結論……………………………………………………54 5-2 建議……………………………………………………56 參考文獻………………………………………………………57 附錄……………………………………………………………60 自述……………………………………………………………71 表目錄 表 2-1 氣提法實驗之觀察表 ( Hydrogeology Journal 2001)……………10 表3-1 砂箱試驗之粗砂成份分析表……………………………23 表 4-1 中子測量數據與氣體飽和度換算表…………… ……30 表 4-2 模式輸入參數表...............................41 表 4-3 流量 40L/min 之 、 、Δt對照表................47 表 4-4 流量 60L/min 之 、 、Δt對照表................48 表 4-5 流量 80L/min 之 、 、Δt對照表................49 圖目錄 圖 2-1 模式氣體通道概念圖 (Elder et al., 1999)…………………………14 圖 2-2 模式質量傳輸示意圖 ( Elder et al., 1999)………………………...15 圖 3-1 砂箱試驗裝置圖.................................22 圖 3-2 砂箱試驗之粗砂粒徑分佈曲線圖....................................................24 圖 4-1 注氣流量與氣體飽和度關係圖....................................................31 圖 4-2 注氣流量60 L/min 土表氣體通道孔拍攝圖...................................33 圖 4-3 注氣流量60 L/min 土表氣體通道孔拍攝圖...................................34 圖 4-4 注氣流量40 L/min 土表氣體通道孔拍攝圖...................................35 圖 4-5 注氣流量40 L/min 土表氣體通道孔拍攝...................................36 圖 4-6 注氣流量80 L/min 土表氣體通道孔拍攝圖...................................37 圖 4-7 平均四分位數氣體通道直徑統計圖.............................................38 圖 4-8 Plume中甲苯濃度與注氣時間關係圖.............................................43. 圖 4-9 Plume中甲苯質量與注氣時間關係圖…...........................................44 圖4-10 Plume中甲苯濃度移除效率與注氣時間關係圖..............................45 圖4-11 流量40L/min 各網格Plume中甲苯質量與注氣時間關係圖.......51 圖4-12 流量60L/min 各網格Plume中甲苯質量與注氣時間關係圖.......52 圖4-13 流量80L/min 各網格Plume中甲苯質量與注氣時間關係圖... ...53

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