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年度	103	專案性質	非實驗性質
專案類別	研究專案	研究主題	評估
申請機構	國立高雄大學	申請系所	土木與環境工程學系
專案主持人	連興隆	職等/職稱	教授
專案中文名稱	利用鐵鋁複合金屬反應牆去除地下水汙染物之廠型規模管柱測試評估計畫
中文關鍵字	鐵鋁複合金屬；反應牆；廠型規模評估
專案英文名稱	Using Pilot Scale Column Modules to Evaluate the Groundwater Remediation Performance by Bimetallic Aluminum–Iron Based Permeable Reactive Barrier
英文關鍵字
執行金額
執行期間	2014/4/25 至 2014/11/24
計畫中文摘要	透水性反應牆(Permeable reactive barrier, PRB)為近 20 年來最成功的地 下水復育技術之一，由於施工容易，且操作成本低廉，已逐漸取代傳統之 「抽出再處理技術」(Pump-and-treat)。目前最常用之填充材質為零價鐵金 屬，兩者之搭配開創了地下水處理的成熟技術。然而，這類的反應牆受限 於零價鐵的還原能力，僅能去除還原性污染物，及部分可被吸附之重金屬， 對於地下水中常見的氧化性污染物無處理效果，殊為可惜。本計畫提出以 鐵鋁複合金屬取代零價鐵金屬之規畫構想，利用鐵鋁複合金屬獨特的可同 時氧化與還原之能力，進行全方位之地下水污染去除整治研究。 本計畫內容主要包括兩部分，分別為連續流管柱實驗以及實驗室模場 實驗，控制因子包括污染物(氧化性污染物和重金屬)、水力因子(孔隙率、 土壤組成和流速)和材料因子(配比和重量)，同時完成大量製造鐵鋁複合金 屬技術之開發。實驗結果顯示，在連續流管柱實驗中，客製化 PVC 管柱長 100 cm，內徑 5 cm，重金屬移除實驗中操作流速為 11 mL/min，Fe/Al 填充 量為 450 g，結果顯示其對銅的移除具有良好的效果，累計時間為 99 天， 處理水量達 1568.16 L，經計算鐵鋁複合金屬對 Cu2+的單位處理量為 284.0 g/kg。而在氧化性污染物的部分，以甲酸為污染物，操作流速為 22 mL/min， Fe/Al 填充量為 450 g，因執行時間之限制未達貫穿即終止實驗，累計時間 為 32 天，處裡水量為 506.88 L，移除率維持在 50%，其單位處理量為 48.9 g/kg。實驗室模場實驗之模組以長 100 cm、內徑 100 cm 的客製化模組為反 應槽，污染物由模組下方進流，上方出流，模組內進流端以不鏽鋼分配管 連接，使污染物可均於分佈於模組內，Fe/Al 填充量為 80 kg，流速為 145 mL/min，每日處理水量為 208.8 L/day，因執行時間之限制未達貫穿即終止 實驗，累計時間為 32 天，累計處裡水
計畫英文摘要	Permeable reactive barriers (PRBs) represent the most successful groundwater remediation technology in the recent 20 years. It outmatches the conventional Pump-and-Treatment technology because of the low cost and easy-to-operate. Among many packing materials, zero-valent iron (ZVI) is the most common one applied in the PRBs. However, ZVI-PRBs are applied only to the reducible contaminants such as chlorinated organics and adsorbed heavy metals. For oxidative contaminants such petroleum chemicals, ZVI-PRBs is unable to deal with. In this proposal, we propose the use of aluminum-iron bimetal (Fe/Al) as the packing materials to integrate with PRBs (FeAl-PRBs) for effective remediation of a wide variety of contaminants including reducible, and oxidative contaminants and heavy metals. This project consists of two parts, namely continuous column experiments and scale-up module experiments. The control factors include pollutants (oxidative contaminants and heavy metals), hydraulic factor (porosity, soil composition and flow rate) and soil types. In the continuous column experiment, customized PVC column was used (length of 100 cm and inside diameter of 5 cm). In the scale-up module experiment, customized column was used (length of 100 cm and inside diameter of 100 cm). In the heavy metal removal experiment, the amount of aluminum-iron bimetal is 450 g, flow rate is 11 mL/min, and operating time is up to 99 days. The volume of treatment water accumulated to 1568.16 L. The capacity is 284 g/kg. In the oxidative contaminants experiment the formic acid is used as probe pollutant, the amount of aluminum-iron bimetal is 450 g, and flow rate is 22 mL/min, and operating time is up to 32 days. The volume of treatment water accumulated to 506.88 L. The formic acid removal efficiency is 50% until now, and the capacity is 48.9 g/kg. The performance of the material has not been invalidated. In the scale-up module experiment, the chromium (IV) is used as probe pollutant. , the amount of aluminum-iron bimetal is 80 kg, flow rate is 145 mL/min, and operating time is up to 32 days. The volume of treatment water accumulated to 6681.6 L. The chromium (IV) removal efficiency is 100% until now. The performance of