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年度	102	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	大仁科技大學	申請系所	環境與職業安全衛生系
專案主持人	李芳胤	職等/職稱	教授
專案中文名稱	屏東縣九如鄉九清段1340地號生物整治現地試驗(第二年)
中文關鍵字	土壤污染；重金屬；總石油碳氫化合物；生物復育；植生復育
專案英文名稱	Bioremediation study of petroleum hydrocarbon and metal contaminated site in Pingtung County（2nd year）
英文關鍵字	soil pollution；heavy metals；TPH；bioremediation；phytoremediation
執行金額
執行期間	2012/12/10 至 2013/12/9
計畫中文摘要	本計畫場址位於屏東縣九如鄉，範圍為 1,800 平方公尺，主要污染物為鋅、鉻、銅、 鎳及總石油碳氫化合物（TPH）。計畫之主要目的在於以生物復育法(蚯蚓與石化分解菌) 與植生復育法(白楊樹與太陽麻)改善污染。在場址內共設置六個試驗區，除對照區(CK) 外，其餘有三個生物復育區(BP1、BP2、BP3)，二個為植生復育區(PR1、PR2)。在兩 年的試驗後發現，三個生物復育區土壤中之 TPH 濃度減量百分比介於 39％～100％， 植生復育區則為 59％～100％，且部分土層之濃度已低於土壤污染管制標準。而重金屬 之測值指出，主要污染重金屬在各試驗區同一土層之濃度呈現不規則變化，且大多數 仍高於土壤污染管制標準。其次，生育調查與生理試驗之結果皆顯示，兩種復育植物 在試驗區中生長良好，有益於後續之污染物改善試驗。此外，兩種植體重金屬之測值 都顯示，其吸收累積量以鋅最大，其餘略呈 Cu＞Ni＞Cr 之現象。最後以剪除植體之生 質量與重金屬濃度計算其吸收移除量，結果發現，太陽麻與白楊樹對重金屬之總移除 量，亦即本年度對重金屬之植生復育效益，分別為 Zn（84 g）＞Cu（1.93 g）＞Ni （1.45 g）＞Cr（0.38 g）。此移除量若與五個試驗區推估之重金屬總含量相較，其移除 比例甚低，復育期將長達 12,905 年，惟當白楊樹長大後，其生質量估計可達目前之 60~100 倍，故可將復育時程縮短至約 100~200 年。
計畫英文摘要	The contaminated site proposed in this study is located in Pingtung County with an area of 1,800 m2 . According to previous investigations, the major contaminants in soils were found to be zinc, chromium, copper, nickel and total petroleum hydrocarbon (TPH). The objective of this research project is to conduct remediation in the contaminated site. Five treatment plots were designated in the highly contaminated area, in which three were designed for bio-phytoremediation (BP1, BP2, and BP3) and two for phytoremediation practice (PR1 and PR2). One control plot was used to compare the results with different remediation treatments. Earthworm (E. fetida) and petroleum-degrading bacteria (Pseudomonas sp. NKNU01) were applied for bioremediation, while Poplars (Populus bonatii Levl.）and Sun Hemp (Crotalaria juncea L.) were utilized in the phytoremediation practice. Soil analysis results showed that the removal rate of TPH in the three bio-phytoremediation plots ranged from 39% to 99% and from 59% to 99% in the two phytoremediation plots. The analysis data also revealed that TPH was below regulation criteria in some soil horizons. However, heavy metal concentrations were not reduced obviously and thus most soils were still highly contaminated. Plant growth and physiological investigations indicated that the two plants were healthy and suitable to be used in this remediation study. The concentrations of heavy metals in the plant tissues were used to evaluate the removal efficiency of the contaminants. The results of tissue analysis indicated that the four metals were absorbed and accumulated in the order of Zn＞Cu＞Ni＞Cr. To explore in more detail, the biomass and the heavy-metal contents of the studied plants were used to evaluate the removal amounts and the results were as follows: Zn（84 g）＞Cu（1.93 g）＞Ni（1.45 g）＞Cr（0.38 g）. Comparing the heavy-metal removal amounts by plants to the total heavy-metal contents in soils, we found that the phytoremediation effect is low and hence it takes long-term practice to reach the recovery goal.