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年度	103	專案性質	實驗性質
專案類別	模場試驗	研究主題	整治
申請機構	崑山科技大學	申請系所	環境工程系所
專案主持人	吳庭年	職等/職稱	教授
專案中文名稱	封隔型隻負壓浮油回收系統於油品洩漏場址的運用
中文關鍵字	石化業；洩漏；油品；回收
專案英文名稱	The application of dual-vacuum packer-type free product recovery system at a site contaminated with oil leakage
英文關鍵字	Petrochemical； leakage；free product；recovery
執行金額
執行期間	2013/11/25 至 2014/11/24
計畫中文摘要	環保署目前已完成七期全國加油站及大型儲槽之土壤及地下水污染調 查工作，陸續發現石油化學產品造成地表下環境的污染現象。石化產品為疏 水性(hydrophobic)物質，密度小於水的疏水性物質一般稱為輕質非水相液 體(Light Non Aqueous Phase Liquid, LNAPL)，當 LNAPLs 因洩漏進入土壤 介質，由於土壤的吸附作用會將油品吸附於介質中，部分揮發性成分會透過 揮發作用在土壤空隙中傳輸移動，若 LNAPs 入滲量超過土壤之吸附容量時， 這些 LNAPLs 會在地下水液面形成所謂的浮油(free product)相。在油品污 染類型場址整治作業中最優先採行緊急應變與污染調查作業，而須先執行污 染源阻斷與瞭解污染分布情況，否則貿然進行整治作業可能增加整治費用甚 或徒然無功，最嚴重是不當整治工法可能擴大污染範圍造成更大的潛在危害 與損失。 本研究計畫主要是針對發生油品洩漏的污染場址，在進行整治作業前的 緊急應變與前置調查作業，應用雷射激發螢光(LIF)系統先行於洩漏場址中進行地表下油相(NAPL)污染團分布調查與浮油相(Free product)移動路徑 確認，接續於浮油相移動路徑上設置攔截點進行浮油相回收作業，防止浮油 相污染團的擴大，最後再以 LIF 系統偵測浮油相污染團的分布以驗證執行成 效。為瞭解設置之浮油回收系統效能、操作條件限制及整治方法之執行時 機，本計畫導入由研究團隊開發之新型式井中浮油回收系統(Free product recovery system)：封隔型雙負壓浮油相回收系統(dual-vacuum packer type recovery system)，系統主要功能特點為以定置空間(Fixed Space) 概念進行抽汲系統設置，使系統作功集中於目標污染物回收，減少不必要的 虛功浪費以節省操作成本，另一方面藉由親油性填充管提高油水分離效能， 降低伴隨之地下水抽取量，減少因浮油回收作業所產生之廢水處理量，以符 合現行推行節能環保與效能提高目標需求，提供相關污染場址進行浮油回收 應變作業的另一種選擇。 封隔型雙負壓浮油相回收系統安裝於現場經約 5 個多月的模場試驗測 試 ，在系統作功效能提升、浮油蒐集效能、廢水減量效能與操作成本效能 之比較上，相關監測數據呈現本研究新開發的封隔雙真空式浮油回收系統皆 優於傳統舊式的其他真空式浮油回收系統。
計畫英文摘要	Taiwan EPA has implemented soil and groundwater investigation at gas stations and underground storage tanks for 7 terms. The leakage of petrochemical products was found liable to contaminate subsurface environments. Petrochemical products are generally hydrophobic and lighter than water, and they are named as light non aqueous phase liquids (LNAPLs). When the leakage of LNAPLs occurred, some of them might be sorbed to soil medium or volatilize into the vadose zone. If the quantity of NAPL leakages exceeded the adsorption capacity of soil media, the residual NAPLs would reach groundwater table and form a layer of free products. For the sites contaminated with petrochemical products, the first priority works are to take emergency actions to cut off leaking sources and to investigate the spreading of contamination areas. The planning of remediation works might be in vane or greatly swell the expenses without the understandings of contamination details. The improper remediation work is liable to cause plume spreading and to increase potential health risk. In this study, one site contaminated with petrochemical products was selected for test. Laser induced fluorescence (LIF) system was employed to detect the transport paths of free products and to investigate the distribution of contaminant plume. In order to implement emergency action, the recovery system was established on the transport paths of free products for the control of plume spreading. Finally, LIF system was employed again to delineate the distribution of contaminant plume after operating the free-product recovery system for several months. The introduced free-product recovery system was developed by the research team, which is called dual-vacuum packer-type recovery (DVPTR) system. This novel DVPTR system is established at fixed space in the well to allow the maximum recovery of free products and minimum suction of water, which contain a lipophilic packer to increase the efficiency of oil and water separation. This novel DVPTR system was operated in such a way that the waste of energy use and the treatment of wastewater were minimalized due to the reduction of water suction. This showcase is expected to fulfill the objectives of energy saving and remediation efficiency improvement, and this novel DVPTR system is definitively an alternative of free-product recovery during implementing emergency action. The DVPTR system was installed in field to conduct a pilot test of fuel recovery for more than 5 months. The monitoring results showed that the developed novel DVPTR system is superior to other traditional vacuum-type fuel recovery system on energy efficiency, fuel recovery, wastewater reduction, operation expense.