生物復育廢機油污染場址之可行性評估

Using Bio-phytoremediation to restored an oil pollution Site feasibility assessment

本研究場址位於屏東縣九如鄉，主要污染物為總石油碳氫化合物（TPH）。計畫自101年起執行迄104年，主要目的在於以生物復育法（蚯蚓與石化分解菌）改善污染。在場址內共設置六個試驗區，除對照區外，另設有三個生物復育區與二個為植生復育區。在三年餘的試驗後發現，各復育區之TPH濃度多呈現降低趨勢，三個生物復育區土壤中之TPH濃度減量百分比介於33%～97%，植生復育區則為19%～81%；不過，多數土層中之TPH濃度仍高於土壤污染管制標準。

The contaminated site proposed in this study is located at Jiuru Township,Pingtung County, According to previous investigations, the major contaminants insoils were total petroleum hydrocarbon (TPH). The objective of this research projectis to conduct remediation in the contaminated site. Five treatment plots weredesignated in the highly contaminated area, in which three were designed forbio-phytoremediation (BP1, BP2, and BP3) and two for phytoremediation practice(PR1 and PR2). One control plot was used for comparison purposes. Since theinitiation of this study in 2012, earthworm (E. fetida) and petroleum-degradingbacteria (Pseudomonas sp. NKNU01) have been utilized for bioremediation, Theresults of soil analysis showed a trend of decreasing TPH concentrations in mosttreatment plots, and the removal rate of TPH within the three bio-phytoremediationplots ranged from 33%~97% and from 19%~81% in the two phytoremediationplots. However, TPH concentrations were not significantly reduced and thus mostsoils were still highly contaminated.