油品多相抽除法整治之模擬

江潤翰

doi:10.6842/NCTU.2012.00652

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油品多相抽除法整治之模擬

Numerical Simulation of Multi-Phase Extraction of LNAPL

江潤翰 , Masters　　Advisor：單信瑜　　

繁體中文 DOI： 10.6842/NCTU.2012.00652

LNAPL ；汽油；多相抽除法； TMVOC ； LNAPL ； Gasoline ； MPE ； TMVOC

Abstract │ Reference (50) │ Times Cited (2) │ Altmetrics

Abstract 〈TOP〉

Parallel Abstract 〈TOP〉

To protect ground water from contamination, the Environmental Protection Administration of Taiwan had promulgated the Soil and Groundwater Pollution Remediation Law in 2000. Land use rights of contaminant sites are strictly restricted under this law. The land owners, thus, often ask engineers to complete remediation events within very short period. Multi-phase extraction (MPE) is a rapidly emerging in-situ remediation technology with good performance on recovery of LNAPL. However, the efficiency estimation of MPE has usually been bases on engineer experience. In this study, numerical simulations had been performed with TMVOC, in order to assess the influence of well location, well bottom pressure and porosity on the efficiency of MPE. A hypothesized aquifer of sandy soil had been assumed to receive gasoline from oil spill from tank farms and thus to be remediated with MPE. The results of simulation show that the extraction well placed 10 m downstream from spill point gives the best efficiency. Efficiency decreases as the extraction well was located away from that particular point, either upstream or downstream. Furthermore, the aquifer of which a higher porosity has been assumed shows a better efficiency than one with lower porosity. In addition, the efficiency of extraction exhibits a positive correlation with the difference between well bottom pressure and atmospheric pressure. Nevertheless, the benefit of high negative pressure is obvious only in the earlier few months after which the benefit decreases with time.

Reference ( 50 ) 〈TOP〉

2. 陳培旼，2010，加油站土壤氣體及地下水監測模擬，碩士論文，國立交通大學。
連結：
5. 楊凱仁，2012，水位波動對地下儲油槽洩漏之影響，碩士論文，國立交通大學。
連結：
6. 經濟部工業局，2007，土壤及地下水污染預防手冊。
連結：
10. 顏伯穎，2002，應用數值方法模擬地下水空氣注入法整治受非水相污染區域之研究，碩士論文，國立成功大學。
連結：
11. Adamski, M., Kremesec, V., Kolhatkar, R., Pearson, C., Rowan, B., 2005, “LNAPL in finegrained soils: conceptualization of saturation, distribution, recovery and their modeling,” Ground Water Monitoring and Remediation, Volume 25, No. 1, pp.100–112.
連結：

Times Cited (2) 〈TOP〉

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