EPA-99-GA103-03-A236-16

099

980 千元

2010/12/29

2011/12/28

郭益銘

土污基管會

尤珩翔

中華醫事科技大學

土壤及地下水

雙相抽引法;化學氧化法;總石油碳氫化合物

Dual-phase Extraction;Chemical Oxidation;TPH

劉保文

黃菀婷

06-2674567#854

jenny110522@gmail.com

環保署土壤及地下水污染整治基金每年支出在石油系有機化合物之土壤及地下水污染整治費用約2億元。台灣地區之土壤/地下水整治大多需分階段或合併應用2-6種整治技術，因此，其設備之初設費與操作人員之訓練費用也相對的增高。本計畫之主要目的係針對土壤及地下水之油品污染研發出一套高效、可行、具有市場競爭力，且能應用於現場整治之新型複合系統，提供加油站等有機物污染問題一個快速有效，而相對經濟的方法，以解決現在及未來可能產生之龐大有機物污染及土壤、地下水整治問題。 為達到完整模擬現地之去除效果，本研究選擇一污染場址，並進行現地水文地質試驗及場址特性調查，並依其特性建立一土壤層環境類似之實驗箱進行實驗室中之污染物去除率試驗。本研究針對污染場址在高濃度時，以雙相抽除法（Dual-phase Extraction）為污染物抽除方法，抽出之液體經過簡易油水分離處理後，將分離水以臭氧進階氧化技術處理水中所含之可溶性有機污染物質，並將殘留有臭氧的放流水接管至地下水層中放流，以利浮油層之去除。待移除浮油層後，將殘留有臭氧的放流水接管至污染團地下水上游之接近地表之土壤層中沖洗，將土壤孔隙中的有機污染物沖洗至地下水面，並以雙相抽除法去除。而在低濃度的時候，因為殘留臭氧的放流水在土壤層反應後會形成氧氣，提升土壤層中的含氧量，形成有益於好氧性微生物分解土壤中之有機污染物環境。 而為了使本技術能更良好的被應用於實際之污染場址上，以實驗室設備模擬現地之污染物被去除情況，找出對油品污染物去除效能最佳之反應流程及其反應條件，並找出未來實廠應用所需之各項反應參數以及適合之操作參數範圍，推導出實際應用之最佳化參數模式。相信在本計畫完成後，在土壤及地下水整治之產業中，合作廠商將可大幅提升其競爭優勢與發展商機，且可部分解決目前日益嚴重之土壤污染問題。

雙相抽引法;化學氧化法;總石油碳氫化合物

(2)EPA99GA10303A23616.pdf

11MB

2012/3/1 上午 12:00:00

Petroleum gives the most charge payment, about two hundred million dollars annually, on the remediation of superfund site from the Soil and Groundwater Pollution Remediation Fund. The whole remediation process of contaminated sites usually needs 2-6 technologies in Taiwan. Thus, the construction costs of equipments and training costs of operators are pretty high. This project aims for developing a new in-situ/on-site hybrid technology (NIOHT) system with efficiency, feasibility, and competitiveness for petroleum-contaminated superfund site. The NIOHT system will provide a rapid, effective, and economic solution for the remediation of quite a few organic-contaminated soil and groundwater in the present and future. To completely simulate the removal characteristics in a superfund site, one contaminated gas station site was selected as target to perform the hydrogeological survey. The laboratory scale experimental box were developed to test the removal efficiency according to the information of hydrogeological survey. In this investigation, the dual-phase extraction, advanced oxidation process (AOP), and ozonic water flushing were performed in series to complete the experiment. Dual-phase extraction is the major method for pollutant extraction in the investigation. Separate the extraction liquid into oil and water layers, and recovery the oily organic pollutant. The extraction water was then treated with ozone. The ozonic water was flushing through groundwater level to improve the removal efficiency of float oil layer. The ozonic water was flushing through surface soil layer to remove the pollutant in the pore when the float oil layer inexistence. In addition, the ozonic water can release oxygen in the soil pore to prove a good environment for the aerobic microorganisms to decompose the pollutant. To obtain a better NIOHT applicability on superfund site, the project performing with the laboratory scale development. The petroleum contaminated-box will be built to simulate the superfund site; in addition, the optimal reaction process and conditions will determine to obtain the operation parameters for the pilot application test and used to derive the optimal model for pilot operation. We believe the project could provide practical experiments to further intensify the competitive edge of the collaboration company, and a part of petroleum-contaminated superfund site solution in Taiwan area.

Dual-phase Extraction;Chemical Oxidation;TPH