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研究生:江銘緯
研究生(外文):Ming-Wai Chiang
論文名稱:地下水污染傳輸延散係數之研究
指導教授:郭明錦
指導教授(外文):Ming-Ching Kuo
學位類別:碩士
校院名稱:國立成功大學
系所名稱:資源工程學系碩博士班
學門:工程學門
學類:材料工程學類
論文種類:學術論文
論文出版年:2002
畢業學年度:90
語文別:中文
論文頁數:61
中文關鍵詞:延散係數延散度污染團
外文關鍵詞:PlumeDispersivityDispersion
相關次數:
  • 被引用被引用:5
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  • 下載下載:147
  • 收藏至我的研究室書目清單書目收藏:2
根據歷年觀測結果,發現掩埋場址X自民國87年9月22日開始發生洩漏連續至今。在不同時程繪出地下水氨氮等濃度曲線,觀察污染團(plume)之移行延散行為,發現污染團的濃度最高點(洩漏原點),接近污染團的中心位置。此現象和一般觀察經驗不同,通常污染濃度最高點位在橢圓形污染團的一端。本論文針對此一現象,以考慮移行及延散機制之地下水污染傳輸模式,來研究分析造成此現象之因素。本論文執行延散係數之靈敏度分析探討延散係數對污染團最高濃度點位置之影響。當延散係數由一般之估計值增大至可能上限時,污染團最高濃度點的位置由橢圓形的一端移往中心位置。
摘要…………………………………………………………………….. I
誌謝……………………………………………………………………...II
目錄……………………………………………………………………..III
圖目錄......................................................................................................VI
表目錄…………………………………………………………….…..VIII
第一章 前言…………………………………………………………...1-1
1-1 研究動機…………………………………………………..…..1-1
1-2 研究目的………………………………………………………1-2

第二章 文獻回顧………………………………………………….......2-1
2-1 溶質的擴散、延散及移形………………………………..…2-1
2-2 地下水污染移行及延散傳輸方程式………………………2-4
2-2-1 一維的濃度階段變化(One-Dimensional Step Change
in Concentration)…………………………………...2-5
2-2-2 一維連續注入地下水流場(One-Dimensional
Continuous Injection into a Flow Field)……………...2-6
2-2-3 一維瞬間注入地下水流場(One Dimensional Slug
Injection into a Flow Field)…………………………...2-7
2-2-4 連續注入均勻二維地下水流場(Continuous Injection
into a Uniform Two-Dimensional Flow Field)………2-8
2-2-5 瞬間注入二維地下水流場(Slug Injection into a
Uniform Two-Dimensional Flow Field)………………2-9
2-3 延散係數…………………………………………………....2-11
2-3-1實驗室管柱試驗求延散度…………………………….2-11
2-3-2 現地試驗求延散度…………………………………….2-12
2-3-3 縱向延散係數………………………………………….2-13
2-3-4 徑向延散(Effect of Transverse Dispersion)………….2-15

第三章 研究方法……………………………………………………...3-1
3-1 掩埋場址X資料收集…………………………………………3-4
3-2 地下水污染移行延散方程式…………………………………3-4
3-3 延散度之靈敏度分析…………………………………………3-6

第四章 研究結果…………………………………….………………..4-1
4-1 掩埋場址X基本資料……………………….………………..4-1
4-1-1 掩埋場址X歷史…………………………………………4-1
4-1-2 地形與地質………………………………………………4-1
4-1-3 氣象與水文………………………………………………4-3
4-2 氨氮污染團及洩漏污染量之推估…………..……………..4-10
4-2-1 氨氮污染團…………………..………….……………..4-10
4-2-2 洩漏污染量之推估……………………………………..4-17
4-3 掩埋場址X污染團移行延散的模式分析………………….4-20
4-3-1 輸入參數的推估………………………………………..4-20
4-3-2第一次模擬分析結果……………………………………4-22
4-3-3 第二次模擬分析結果…………………………………..4-24
4-3-4 第三次模擬分析結果…………………………………..4-24
4-4 延散度之靈敏度分析結果………………………………….4-27

第五章 結論與建議…………………………………………………...5-1
5-1 結論……………………………………………………………5-1
5-2 建議……………………………………………………………5-2

參考文獻
附錄
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