Title

含水層異質性對NAPL垂直傳輸影響之研究

Translated Titles

The Influence of Heterogeneity on NAPL Vertical Transport

Authors

李柏村

Key Words

非水相液 ; 一維管柱試驗 ; 傳輸 ; transport ; heterogeneity ; NAPL

PublicationName

成功大學地球科學系學位論文

Volume or Term/Year and Month of Publication

2005年

Academic Degree Category

碩士

Advisor

吳銘志;鍾廣吉

Content Language

繁體中文

Chinese Abstract

非水相液為不溶於水的污染物,其移動特性深受本身之物理性質及水文地質條件所影響。本研究利用室內一維管柱試驗,探討非水相液在不同之水流情況與不同之地質組構型態中的移動情形及其殘留量與不同地質條件之關係。藉由兩不同均質砂樣所組成之複合砂柱,於進行一維管柱試驗後,得知,在一定之流速範圍內(0.25~1.179cm/sec),NAPLs在含水層中的移動速度及通過量均不受水流影響。且當細砂層的厚度超過10cm,或粉砂層的厚度超過3cm,即會影響三氯乙烯在管柱中的傳輸情形。 根據本研究的一維管柱試驗結果可得,於一維水流狀態下,三氯乙烯在粒徑為0.425~0.85mm砂樣(相當於細砂層)中的平均殘留率約為10.021g/m3,而在粒徑為0.15~0.25mm(相當於粉砂層)砂樣中的平均殘留率約為10.611g/m3。

English Abstract

Non Aqueous Phase Liquid (NAPL) is a contaminant which is not solutable in water, its characteristic of moving across the aquifer is effected by its physical properties and the heterogeneity of the porous materials. The objective of this study is to conduct a one-dimentional sand column test to understand the influence of geological heterogeneity for NAPL transport. In one-dimentional sand column test, the occurence of NAPL transport is essentially identical when the water flow rate is between 0.25 cm/sec to 1.179cm/sec. However, the time that TCE pass through the column will increase when the thinkness of sandstone layer is larger than 10 cm; the same condition is will be occurred as well as the thinkness of siltstone layer is thicker than 3cm. According to the result of the study, the residual amount of TCE in a sandstone is about 10.021g/m3, and the residual amount in a siltstone is about 10.611g/m3.

Topic Category 基礎與應用科學 > 地球科學與地質學
理學院 > 地球科學系
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Times Cited
  1. 楊書豪(2012)。乳化液包覆過氧化物奈米顆粒進行地下水中三氯乙烯移除研究。中興大學環境工程學系所學位論文。2012。1-94。
  2. 連珮妤(2013)。乳化液與奈米過氧化鈣加強生物降解三氯乙烯之管柱試驗。中興大學環境工程學系所學位論文。2013。1-80。