实验室规模下工业垃圾填埋场样品中多环芳烃的泥浆相生物修复
Slurry phase bioremediation of PAHs in industrial landfill samples at laboratory scale.
作者信息
Di Gennaro P, Franzetti A, Bestetti G, Lasagni M, Pitea D, Collina E
机构信息
Department of Environmental Sciences, University of Milano-Bicocca, P.zza della Scienza 1, 20126 Milano, Italy.
出版信息
Waste Manag. 2008;28(8):1338-45. doi: 10.1016/j.wasman.2007.06.021. Epub 2007 Sep 11.
The effect of Tween 80 and selected bacteria additions on the bioremediation of PAH contaminated landfill soil (70.38mgkg(-1)) was evaluated in a slurry phase bioreactor. A phenanthrene-degrading consortium was selected by enrichment cultures and used as autochthonous inoculum. The Tween 80 addition increased the aqueous concentration of both high and low molecular weight PAHs. In the experiment with Tween 80 and inoculum addition, added microorganisms improved (>90%) the biodegradation of two- and three-ring PAHs as well as of the four-ring PAHs pyrene and fluoranthene. Biodegradation of the higher molecular weight PAHs was about 30% in experiments with Tween 80 addition, with and without inoculum addition.
在泥浆相生物反应器中评估了吐温80和添加特定细菌对多环芳烃污染的垃圾填埋场土壤（70.38mgkg(-1)）生物修复的影响。通过富集培养选择了一个菲降解菌群，并将其用作本地接种物。添加吐温80提高了高分子量和低分子量多环芳烃的水相浓度。在添加吐温80和接种物的实验中，添加的微生物改善了（>90%）二环和三环多环芳烃以及四环多环芳烃芘和荧蒽的生物降解。在添加吐温80的实验中，无论是否添加接种物，高分子量多环芳烃的生物降解率约为30%。
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