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年度	108	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	國立宜蘭大學	申請系所	環境工程學系
專案主持人	劉鎮宗	職等/職稱	教授
專案中文名稱	以酒廠污泥微粒吸附降解地下水中汽油之研究
中文關鍵字	汽油, 地下水, 吸附反應牆, 酒廠污泥
專案英文名稱	Adsorption and Degradation of Gasoline in Groundwater Using Distillery Sludge
英文關鍵字	Gasoline, Groundwater, Adsorption reactive barrier, Distillery sludge
執行金額	650,000元
執行期間	2019/1/1 至 2019/11/30
計畫中文摘要	已知酒廠污泥微粒對高分子量染料有極佳的吸附效果，顯示此污泥的有機組成可以吸收的方式將分子量略大的非極性分子捕捉至它的構造內。預備實驗顯示，此污泥微粒可吸附移除水中苯、甲苯、二甲苯、乙苯、甲基叔丁基醚(MTBE)約70〜90% 的含量。又酒廠污泥之組成源自活性污泥池與厭氧消化槽，含有好氧菌和厭氧菌的繁殖體，若經活化，可能俱有降解汽油成份的能力。以純水相的批次法研究汽油降解受到相當大的限制，如汽油的高揮發性和好氧菌活動受限於封閉系統，十天後氧氣便逐漸耗竭。本計畫後期使用沙箱模組模擬整治飽和層的汽油污染：(1)以污泥微粒構築吸附反應牆，試驗其攔阻污染團擴散的能力；(2)將污泥微粒或源自它的優勢菌種，伴隨營養液直接注入污染團內，觀察污染團的降解過程。酒廠污泥是製酒廠過程的事業廢棄物，此計畫的研究成果提供它高價值的再利用出路。 酒廠污泥微粒共篩出四種汽油降解菌，其菌落之形態與顏色有差異明顯，牠們對汽油的降解能力差異不大，其中以四號菌株最佳。吸附反應牆試驗裡飽和層中的汽油污染團因其上浮作用，使污染物濃縮於水體上層，造成試驗的第二天就發生MTBE貫穿反應牆，但牆後孔隙水在多數時間裡仍符合第二類水質標準，也能短暫符合第一類水質標準。
計畫英文摘要	The distillery sludge has been known that it has an excellent ability of removal of high-molecular-weight dyes. This revealed that the sludge can trap non-polar molecules into its structure by the partition. The results of preliminary experiments indicated the fine particle of distillery sludge remove 70 to 90 % of benzene, toluene, xylene, ethylbenzene, and MTBE from liquid phase in the water. Distillery sludge originated from activated sludge pool and anaerobic digestion tank, and therefore it was speculated that some propagating bodies of both aerobic and anaerobic bacteria remained in the matter. If they are activated, some species probably degrade the gasoline. The study of gasoline degradation using batch method was limited to a high volatility of gasoline and activity of aerobic microbes in a closed system, where oxygen will be exhausted after ten days. The objectives of this study are employing the sandbox module to examine (i) the limit of diffusion of gasoline plume by an adsorption reactive barrier which set by distillery sludge and (ii) the degradation of gasoline plume by the predominant bacteria species originating from the sludge. The sludge is regarded as a business waste in a wine industry. This study proposes a new way to increase the value for its reuse. Four species of gasoline-degradation bacterium were found from the sludge. Though heir colonies on medium had significant difference in shape and color to each other, their degradation capacity of gasoline were shown closely. The bacteria termed No. 4 had the best ability. The pollutants were concentrated in upper layer of zone of saturation due to the flotation of gasoline, this causing the breakthrough of MTBE from the barrier just on the second day. However, the properties of pore waters behind the barrier met criteria of the second-class groundwater in most of time. They also met criteria of the first-class ground water in a few days.