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年度	110	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	國立中興大學	申請系所	環境工程學系
專案主持人	張書奇	職等/職稱	副教授／系主任
專案中文名稱	二仁溪污染底泥整治模場試驗計畫（多溴二苯醚與多環芳香烴污染整治技術研發）（第2年）
中文關鍵字	二仁溪,底泥整治,多溴二苯醚,多環芳香烴
專案英文名稱	A pilot study on the remediation of Er-Ren River sediment (Technology development and validation of remediation of soils and sediments contaminated by polybrominated diphenyl ethers and polycyclic aromatic hydrocarbons- Year 2)
英文關鍵字	Er-Ren River,remediation of Sediment,polybrominated diphenyl ether, polycyclic aromatic hydrocarbon
執行金額	2,610,000元
執行期間	2021/2/1 至 2021/11/30
計畫中文摘要	工業發達國家之底泥及土壤污染情況相當普遍，不論是在河川中下游之底泥、 河口附近海水底泥及農地與工業用地土壤均已遭受污染，其中尤以疏水性有機物及 重金屬污染嚴重，而台灣之土壤及農地污染物檢測濃度在全世界相關文獻報導中均 名列前茅。如台南安順場址海水池底泥中戴奧辛與汞之污染、二仁溪底泥中之多氯 聯苯、多溴聯苯醚、多環芳香烴類、聯苯二甲酸酯類塑化劑污染。這些污染也可藉 由食物鏈破壞生態系及影響人體健康，急需經濟有效之整治技術。東南亞地區農地 土壤也遭受相當高濃度之重金屬與有機物污染，農地污染直接衝擊食品安全及人體 健康，而目前污染整治技術效果卻相對有限。由於本研究團隊於 107-108 年度計畫 以相反轉技術結合微生物生物篩選及降解技術（ISPIE/BiRD）進行底泥整治之現地 模場試驗及土壤污染整治之砂箱試驗，不僅對於已經風化之多氯聯苯污染物 Aroclor 1254 與六氯苯有極佳去除率，且對土壤中 DDT 可達到 99.9%以上之 DDT 及 92.2% 以上之 Lindane。為進一步優化此技術，本專案計畫針對多溴二苯醚與多環芳香烴污 染整治技術進行研發之 2 年期計畫，第 1 年計畫已經完成所有預定進度並依規定已 進入模場進行先期採樣等工作。全程計畫迄今已經完成 2 篇中文期刊論文發表（原 定 1 篇）、6 篇研討會論文發表及投稿（原定 3 篇）、1 篇 SCI 期刊論文投稿（原定 2 篇，第 2 篇依規定於計畫結束後半年內完成）及 1 項專利申請（原定 0 項）。第 2 年 計畫進度超前，目前已完成 2 次模場試驗，第 1 次模場試驗結果顯示風化組之整治 效率顯著較添加組低，此與之前管柱實驗結果、六氯苯及多氯聯苯之模場試驗結果 相左，第 2 次模場試驗結果仍顯示風化組之整治效率較添加組低，但不具統計顯著 性，但第 2 次模場試驗果顯示 WNR 效果最佳，此結果與管柱實驗結果、六氯苯及 多氯聯苯之模場試驗結果相合，且因起始濃度較高而可以避免試驗末期濃度定量困 難情形，故第 2 次模場試驗可信度較佳，故 ISPIE/BiRD 極可能可適用大多數遭到 高度疏水性之鹵化有機污染物所污染之底泥。土壤砂箱實驗已經完成，其結果顯示： 含水率為 BDE-209 及 BaP 生物整治之關鍵參數，表示只要灌水淹沒農田即有最佳 初步效果，而適當添加有機質和乳化液可以提高降解效率。
計畫英文摘要	Sediment and soil contamination in the developing and developed countries is a prevailing environmental problem. No matter in the sediment of the middle and lower sections of rivers, estuarine sediments, agricultural soils, and soils near the industries, they are often contaminated by hydrophobic organic compounds (HOCs) and heavy metals. In the soils and sediments in Taiwan, multiple contaminants concentrations were ranked at the top in the world, for example, the dioxins and mercury in at An-Sun site in Tainan, the hydrophobic organic compounds in the sediments of Er-Ren River, the heavy metals in the agricultural lands in Chang-Hua County. Similarly, this situation is also quite common in the southeastern Asia. This research team in the past two years has developed a new technology for soil and sediment remediation, i.e., in situ phase inversion emulsification and biological reductive dichlorination (ISPIE/BiRD). This method is not only very effective in removal of weathered polychlorinated biphenyls and hexachlorobenzene in river sediments but also achieved as high as 99.9% of DDT and 92.2% of lindane in soils. Up to now, in this 2-year project, we have finished 2 journal paper in Chinese (1 in original KPIs), 6 conference papers (3 in original KPIs), and 1 SCI journal papers (2 in original KPIs). The second SCI paper will be finished following the TWEPA rule. The results of the pilot study of BDE-209 in sediment indicated the removal efficiency of weathered BDE-209 is lower than that of fresh BDE-209. This is totally opposite to the previous column study on BDE-209 and pilot study of hexachlorobenzene and Aroclor 1254. Thus, a second pilot study was undertaken. the results of the second pilot study still show that the remediation efficiency of the weathered group is lower than that of the fresh group but without statistical significance. However, the 2nd pilot study results showed that the WNR is the best, which is consistent with that of PCBs and hexachlorobenzene. Because the initial concentration is higher in the 2nd pilot study, the difficulty in quantifying the concentration at the end of the pilot study can be avoided and the reliability of the 2nd pilot study is better. Thus, ISPIE/BiRD is very likely to be applicable to most sediments contaminated with highly hydrophobic halogenated organic compounds. The batch and sandbox study in soils showed that water content is the determining factor in better remediation of BDE-209 and BaP. Thus, flooding the contaminated rice paddy is the most important while appropriate level of soil organic matter and emulsion can enhance the remediation efficiency