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年度	109	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	國立高雄大學	申請系所	土木與環境工程學系
專案主持人	袁菁	職等/職稱	特聘教授
專案中文名稱	建立三維多向性電動力模場優化系統之研究
中文關鍵字	電動力,模場優化系統
專案英文名稱	Research on Establishing 3D Multi-directional Electrokinetic Mode Field Optimization System
英文關鍵字	Electrokinetic,Mode field optimization system
執行金額	1,699,999元
執行期間	2020/1/30 至 2020/12/4
計畫中文摘要	本計畫 (109) 為【建立三維多向性電動力模場系統之優化研究】之第二年計畫，應用電動力技術進行重金屬污染土壤場址之研究，探討整治系統放大後對技術操作及試驗參數之影響，更針對電極井配置系統優化，評估整治效能及成本效益，本計畫團隊取得捷博公司合作意願，並請該公司協助模場系統設立、效能評估及技術推廣等事項，並未來將思考結合電動力技術與該公司合作之可能性。 電化學地質氧化技術具有優勢為：(1)使污染物移動具方向性、(2)能有效降解有機污染物、(3)污染場址處理多元化、(4)易於結合其他技術提升整治成效及 (5)可有效處理土相及液相之污染，藉由本計畫之執行，產出成果為 (1)完成實場尺度惰性Al電極及Fe/Al氧化電極製備技術建立、(2)完成電動力模場配置系統規劃及建置、(3)完成電動力技術模場操作參數執行、(4)探討電極使用之經濟性、(5)完成電動力技術模場長期操作參數建立及 (6)完成電動力模場處理效能及經濟效益分析。 本年度 (109) 整治計畫則以方型排列模組為整治目標，結果發現提升電位坡降並未明顯提升整治成效，係因陰極井端釋出大量氫氧根離子致重金屬沉澱；更換Al惰性電極至Fe/Al氧化電極，各重金屬整治成效明顯提升，因Fe/Al氧化電極有效將重金屬強鍵結態轉化至弱鍵結態並移除；改以0.30 M乳酸作為操作流質，提升電位坡降由1.0 V/cm至1.4 V/cm，整治成效未顯著提升，乃因整治期間之強降雨使操作流質乳酸受到稀釋，致整治成效提升不易，顯示電動力技術若應用於戶外環境，下雨天氣不利整治進行。 本研究經濟成本分析中，蜂巢型及方型排列模組整治成本分別介於967.0 ~ 6,893.9 NTD/m3及2,068.5 ~ 8,158.6 NTD/m3之間，研究結果發現提升電位坡降，能耗成本僅由0.3% ~ 0.9%提升至2.3% ~ 6.6%；更換由Al惰性電極至Fe/Al氧化電極或由地下水至0.30 M乳酸，整治成本大幅提升，係因Fe/Al氧化電極之製備及操作流質需定期補充，致整治成本大幅提升。
計畫英文摘要	This plan (109) is the second year of the ” The study of establishment of the optimal three dimension multi-directional Electrokinetic prototype field system” which uses electric force to conduct research on the mode field operation of heavy metal pollutan sites. The effect of scale-up on operation and experimental parameters will be investigated. The project is highly supported by JETPRO Technology CO., LTd.. Intensive cooperation between JETPRO and NUK could be highly expected in the future. Electrochemical Geooxidation technology is valued on (1) controllable pollutant migration; (2) efficient degradation of organic pollutants; (3) site diversification; (4) good at combination with other technologies; (5) pollutant diversification. As a consequence, the expected results for this project are (1) preparation of Al inert electrode and Fe/Al oxidation electrodes with pilot plant scale; (2) planning and setup of electrode wells; (3) conducting pilot plant experiments; (4) recyclability analysis of electrodes; (5) establishment of long term operation parameters of Electrochemical Geooxidation technology; (6) performance and cost analysis for pilot plant system. The remediation of this year (109) plan by square modules. It was found that increasing the potential gradient did not improve the removal rate of HMs, due to the heavy metal precipitation caused by the release of a lot of hydroxide ions at the cathode well; replacement of the Al inert electrode to the Fe/Al oxidation electrode, the effect of the treatment of heavy metals has been significantly improved, because the Fe/Al oxidation electrode effectively converts the strong bonding to weak bonging of the heavy metal and removes it; change to 0.30 M lactic acid from groundwater and increase the potential gradient from 1.0 V/cm to 1.4 V/cm, the remediation effect did not improve significantly, because rainfall during the remediation period caused the liquid lactic acid to be diluted, which made it difficult to improve the removal rate of HMs. This shows that if the ECGO is used in an outdoor, is not sutable rainy. Analysis of cost in this research, the remediation cost of honeycomb and square modules is between 967.0 ~ 6,893.9 NTD/m3 and 2,068.5 ~ 8,158.6 NTD/m3 respectively. The results of the study found that the increased potential gradient, and the power consumption cost is only 0.3 % ~ 0.9% increased to 2.3% ~ 6.6%; replacement from Al inert electrode to Fe/Al oxidation electrode or from groundwater to 0.30 M lactic acid, the cost of remediation is greatly increased, because the preparation and operation of Fe/Al oxidation electrode require regular fluidity Supplement, resulting in a substantial increase in remediation costs.