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年度	111	專案性質	實驗性質
專案類別	研究專案	研究主題	整治
申請機構	明志科技大學	申請系所	環安衛系
專案主持人	崔砢	職等/職稱	副教授
專案中文名稱	添加氯化鈣溶液於有效微生物菌液對垂直電動力法移除土壤重金屬效率之評估
中文關鍵字	氯化鈣，有效微生物，重金屬，土壤淋洗，垂直電動力法
專案英文名稱	Evaluation of adding calcium chloride to effective microorganisms solution on the soil heavy metals removal efficiency by using vertical electrokinetic remediation apparatus
英文關鍵字	Calcium chloride; Effective microorganisms, Heavy metals, Soil leaching, Vertical electrokinetic remediation
執行金額	739,980元
執行期間	2022/5/1 至 2023/4/30
計畫中文摘要	本研究利用垂直電動力法，進行兩階段電動力法實驗，第一階段測試不同電解液對彰化大村土壤中不同重金屬的移除效率，第二階段則評估在EM菌中添加不同濃度氯化鈣，觀察對彰化鹿港土壤中兩種重金屬移除效率的影響，並與水平電動力法結果進行比較。第一階段實驗顯示，EM菌作為電動力法電解液，對於彰化大村土壤的銅、鎳、鉻三種不同重金屬移除，普遍優於0.01 M檸檬酸或0.01 M硝酸，而EM+0.02 M氯化鈣組則優於EM菌組，但是利用EM+0.1 M氯化鈣組作為電解液，在外加60V電壓情形下，會由於系統發熱造成反應槽膨脹變形，而使實驗無法繼續進行。第二階段實驗顯示，EM+0.01M氯化鈣組相對於EM組，能明顯提升對彰化鹿港土壤中銅的移除效率，但是EM+0.05M氯化鈣可能由於在陰極產生過多的沉澱，對於銅的移除效率則不如EM組。與水平電動力法數據做比較，垂直電動力法EM+0.01M氯化鈣組對於鹿港土壤中銅的移除效率優於水平電動力法，但是經過21天處理後，對於鋅的移除效率則是與水平電動力法相差不大。整體而言，雖然垂直電動力法能在短時間提升對土壤中重金屬的移除效率，但是垂直電動力法反應槽的設計較為複雜，且大規模處理污染土壤可能造成反應槽過熱而膨脹變形，因此是否適合實場應用，仍需要後續的研究加以測試。
計畫英文摘要	The study utilized vertical reactor to conduct a two-stage electrokinetic experiment. In the first stage, different electrolytes were tested for their efficiency in different heavy metals from the Changhua Dacun soil. In the second stage, the effects of adding different concentrations of calcium chloride to EM on the heavy metals removal efficiency from Changhua Lugang soil were studied, and the results were compared with those obtained from the horizontal electrokinetic study. The results of the first-stage experiment showed that using EM as electrolyte generally exhibiting better copper, nickel and chromium removal efficiency from Changhua Dacun soil when compared with 0.01 M nitric acid or 0.01 M citric acid. Additionally, EM+0.02 M CaCl2 treatment had better performance than the EM treatment. However, when using EM+0.1 M CaCl2 as electrolyte under an applied voltage of 60 V, the experiment has to be discontinuted due to the expansion and deformation of the reaction chamber caused by the heat generation during the electrokinetic performance. The results of the second-stage experiment showed that EM+0.01 M CaCl2 treatment generally had better copper removal efficiency from Changhua Lugang soil when compared with EM treatment. However, EM+0.01 M CaCl2 treatment showed much worse copper removal efficiency than EM treatment, resulting from the excessive precipitation generated near the cathode. When compared the data with the horizontal electrokinetic experiment, the vertical electrokinetic experiment with EM+0.01 M CaCl2 exhibited better copper removal efficiency in Changhua Lugang soil. However, after 21 days of operation, there was little removal difference in the removal efficiency of zinc between the vertical electrokinetic treatment and horizontal electrokinetic treatment. Overall, although the vertical electrokinetic treatment showed the ability to enhance the heavy metals removal efficiency from soil in a short time, its reactor manufacture is more complex. Additionally, large-scale treatment of contaminated soil using vertical electrokinetic treatment might lead to issue such as overheating and expansion deformation of the rector chamber. Therefore, whether it is suitable for practical field applications still requires further research and testing in the future.