臺灣博碩士論文加值系統

現地環境中殘存之重質非水溶相蓄積源(如三氯乙烯、四氯乙烯)，具有雙鍵化學結構，接收雷射激發光源後通常將能量轉為自體旋轉，並無法散發出螢光，因此無法利用雷射激發螢光系統直接偵測得知。本研究篩選20 種化工染料與30種食品染料，以丙二醇與乙醇為溶劑配製染液，類似搖晃試驗Sudan IV或Oil Red O之染色原理，使三氯乙烯染色得以被偵測到。螢光分析使用紫外螢光篩測工具(UVOST)，雷射激發光源為308 nm XeCl 氣體，接收350 nm、400 nm、450 nm 和 500 nm 四個波段的螢光強度，測試樣品包括染色三氯乙烯溶劑與染色三氯乙烯污染土壤，比對染色前後樣品的螢光增幅作為篩選依據。另以土壤搖晃試驗與離心輔助搖晃試驗，以丙二醇溶劑配製成 1%染液，加入三氯乙烯污土搖晃 20秒後，或以 1500 rpm 離心2分鐘後，進行染色樣品呈色判定，篩選適用於篩測土壤三氯乙烯的染料。

Because of their chemical double bond structures, TCE and PCE usually transfer energy as self-rotation after being excited by Laser induced fluorescence (LIF) light source. It seems impossible to detect the residual DNAPL pools in subsurface by using the LIF system. In this study, 20 chemical dyes and 30 food favor additives were prepared in dye solutions with propylene glycol and ethanol solvents. Similar to Sudan IV or Oil Red O dying, the dyed trichloroethylene(TCE) made itself visible through LIF detection. The Ultra-violet Optical Screening Tool (UVOST) is utilized as laser induced fluorescence system in this study. The light source uses 308 nm XeCl laser gas, and fluorescence intensity is measured based on the emissions at 350 nm, 400 nm, 450 nm and 500 nm. The tested samples include the stained TCE solutions and the stained TCE contaminated soils with various dyes. The comparison with fluorescence increase after sample dyeing served as a screening criteria. In addition, the soil shaking test and centrifugation assisted shaking test were utilized to examine the stained TCE contaminated soils with the addition of 1% dye solution. The soil shaking tests were conducted 20 seconds by continuous shaking, and the centrifugation assisted shaking tests were conducted with centrifuge at 1500 rpm for 2 minutes. Visible stain determined the screening outcome of the suitable dye for detecting TCE contaminated soil samples.

中文摘要 ----------------------------------------------------------------------- i
英文摘要 ----------------------------------------------------------------------- ii
誌謝 ----------------------------------------------------------------------- iv
目錄 ----------------------------------------------------------------------- v
表目錄 -----------------------------------------------------------------------vii
圖目錄--------------------------------------------------------------------------ix
中英對照 ------------------------------------------------------------------------xi
一、 緒論---------------------------------------------------------------------1
1.1 前言-------------------------------------------------------------------------1
1.2 研究目的----------------------------------------------------------------------2
二、 文獻回顧---------------------------------------------------------------- 3
2.1 含氯有機物傳輸宿命-------------------------------------------------------- 3
2.2 含氯有機物偵測技術-------------------------------------------------------- 5
2.3 含氯有機物調查案例--------------------------------------------------------12
2.3.1 地電阻探測技術調查案例-------------------------------------------------------12
2.3.2 薄膜界面探測技術與染料搖晃試驗調查案例------------------------------------------16
2.3.3 染料輔助雷射激發螢光技術調查案例---------------------------------------------- 18
三、 研究方法---------------------------------------------------------------- 21
3.1 實驗材料---------------------------------------------------------------- 23
3.2 實驗設備---------------------------------------------------------------- 25
3.3 實驗設計---------------------------------------------------------------- 30
3.4 分析方法---------------------------------------------------------------- 31
3.4.1吸收光譜分析-------------------------------------------------------- 31
3.4.2雷射激發螢光分析----------------------------------------------------- 34
3.4.3搖晃試驗分析-------------------------------------------------------- 36
3.5 數據分析與處理----------------------------------------------------------- 38
四、 結果與討論--------------------------------------------------------------- 39
4.1 染料 UV 吸收光譜--------------------------------------------------------- 39
4.2 雷射激發螢光數據分析------------------------------------------------------ 47
4.2.1染料 LIF 圖譜解析-------------------------------------------------- 47
4.2.2染液染色三氯乙烯純相測試---------------------------------------------- 52
4.2.3染液染色三氯乙烯污土測試---------------------------------------------- 56
4.3 染液搖晃試驗分析---------------------------------------------------------- 60
五、 結論-------------------------------------------------------------------- 67
5.1 結論-------------------------------------------------------------------- 67
5.2 建議-------------------------------------------------------------------- 70
參考文獻 ----------------------------------------------------------------------- 71
附錄 ----------------------------------------------------------------------- 74

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