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題名 | The Dispersion of Oil from Oil Sludge by a Biosurfactant=生物界面活性劑於回收油污泥原油之應用 |
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作者 | 羅智成; 林松池; | 書刊名 | 界面科學會誌 |
卷期 | 20:2 1997.12[民86.12] |
頁次 | 頁117-124 |
分類號 | 400.16 |
關鍵詞 | 生物界面活性劑; 枯草桿菌; 表面素; Biosurfactant; Bacillus subtilis; Surfactin; |
語文 | 英文(English) |
中文摘要 | 本研究評估利用生物界面活性劑與化學界面活性劑自油污泥回收原油之可行性。實驗明含0.025%表面素之枯草桿菌發酵液,在22℃下回收原油之效率較同濃度之SDS與CTAB溶液高至少三倍。對SDS與CTAB而言提高操作溫度可增加回收效率,但對枯草桿菌發酵液而言,提高操作溫度時回收效率反而降低,可能是因為在高溫時發酵液中之共界面劑被去活化所造成的。雖然如此,含0.025%表面素之枯草桿菌發酵液在22℃下之原油回收效率仍約略與同濃度之SDS及CTAB溶液在60℃下之效率相等,因此利用生物界面活性劑進行現址之油污泥回收原油具相當之可行性。 |
英文摘要 | The effectiveness of synthetic surfactants and a biosurfactant for the recovery of oil from oil sludge was evaluated. At a concentration of 0.025% and at 22℃, cell-free B. subtilis broth containing surfactin is three times more effective than SDS and CTAB. On the average, increasing the treatment temperature from 22℃ to 60℃ led to 93% and 66% in oil dispersion for SDS and CTAB, respectively. For B. subtilis broth increasing the temperature to 60℃ resulted in 36% reduction in oil dispersion due to, probably, loss of cosurfactants, such as organic alcohols by evaporation and extracellular proteins by heat denaturation. At a concentration as low as 0.025%, B. subtilis broth at 22℃ is as effective as SDS and CTAB at 60℃. Microbial broth containing microbial surfactants was shown well suited for in situ application for oil recovery from contaminated soils. |
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