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題 名 | 應用界面活性劑處理汽、柴油地下污染之相態研究=The Study of Phase Behavior in Gasoline and Diesel Contaminated Site by Surfactant Remediation Method |
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作 者 | 陳大麟; 吳偉智; | 書刊名 | 石油季刊 |
卷 期 | 35:2 1999.06[民88.06] |
頁 次 | 頁49-58 |
分類號 | 445.6 |
關鍵詞 | 界面活性劑; 相態; 地下污染; 汽油; 柴油; Surfactant; Phase behavior; Underground contamination; Gasoline; Diesel; |
語 文 | 中文(Chinese) |
中文摘要 | 傳統抽水處理法已經證實無法將地下水中的污染物質完全抽除乾淨,尤其是DNAPL 因其對水的溶解度低、界面張力大且有比水重的下沈特性,很少能夠隨著地下水被抽出地表 處理;而LNAPL雖可利用傳統方法達到較佳成效,但若要將殘餘的LNAPL完全清除仍需仰賴更 先進的整治方法,因此現地(In-situ)處理方式更形重要。 界面活性劑處理法係以界面活性劑注入地層內,使地下污染物產生溶解及移動之效應而 移除。為瞭解利用何種界面活性劑效果最佳,相態試驗為研究界面活性劑處理法最基本之篩 選工作,探討界面活性劑因溫度、醇類、鹽度等之變化對相態之影響,可據以研判進一步試 驗時所需之界面活性劑及其濃度、配方。本研究探討汽油和柴油與數種界面活性劑之相態, 進行鹽度掃瞄、用量掃瞄等試驗,研究結果發現數種適合汽油及柴油地下污染整治之界面活 性劑,可供進一步研究之用。 |
英文摘要 | The traditional pump and treat method has been shown the low efficiency on recovering residual contaminant contained in the soil. The residual LNAPL is hard to remove although LNAPL is easy to flow with water. For a DNAPL site, the remediation by the pump and treat method is even worse due to the low solubility of DNAPL into water phase and the gravity force effect. To resolve these remedial problems, an in-situ method, surfactant remediation, was investigated. The mechanisms for the surfactant remediation are based on the solubility and mobility of surfactant between the water and contaminant phases. Toobtain an optimum surfactant for a specific contaminant, this study hasperformed a surfactant screen for gasoline and diesel. The main screenfactor is the surfactant phase behavior. Since surfactant phase behavioris varied with several variables, we have studied the factors such assalinity, alcohol concentration, and temperature. Based on our results, several surfactants have been found suitable for specific contaminant. Also a high clean-up efficiency was observed. It is a very useful resultfor future study in the design and application of surfactant remediationmethod. |
本系統中英文摘要資訊取自各篇刊載內容。