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標題: 土壤有機質與水體酸鹼值對井間介入性示蹤劑試驗之影響
Analysis of the impacts of soil organic matter and acidity of groundwater to partitioning interwell tracer tests
作者: 莊淑惠
Tsuang, Shu-Hui
關鍵字: 土壤有機質;水體酸鹼值;井間介入性示蹤劑試驗;PITT
出版社: 環境工程學系
台灣地區近年來衍生出各式的環境污染問題,其中經由輸送管線造成油品洩漏的問題更是層出不窮,當漏油事件發生時,準確的偵測出污染物之所在位置及含量是整治工作的首要步驟。油品多屬於LNAPLs(Lingt Nonaqueous Phase Liquids),目前對於NAPLs範圍特性的偵測方法中,以井間介入性示蹤劑試驗(Partitioning Interwell Tracer Test,簡稱:PITT)的應用結果較佳、準確度較高。

Recently, many pollution incidents caused by leakage, spills and disposal of oils from underground storage tanks and pipelines have been found in Taiwan. When these so called “LNAPLs (Light Nonaqueous Phase Liquids)” contamination happens, locating these LNAPLs sources and estimating the volume of pollutants is the first step of the remediation works. Among the technologies of detecting the subsurface conditions of LNAPLs, partitioning interwell tracer test (PITT) is an attractive choice.
This project applies the PITT technique in a series of column tests to detect and estimate the residual saturation of diesel in the sand-packed columns. Due to the fact that the differences between the field conditions and laboratory environments may result in different conclusions, this research investigate the impacts of organic matters of soil and the pH value in groundwater to the PITT results. The results show that PITT can accurately estimate the diesel's residual saturation under ideal conditions. However, when organic matters introduced in the soil, the adsorption and partition behaviors of the tracers are significantly affected, and higher impacts were observed when more organic matters exist. About the PITT results with pH ranges from 5 to 9 in water, no significant differences were observed.
Appears in Collections:環境工程學系所

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