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首页> 外文期刊>Ecological engineering: The Journal of Ecotechnology >Evaluation of two commercial bioaugmentation products for enhanced removal of petroleum from a wetland
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Evaluation of two commercial bioaugmentation products for enhanced removal of petroleum from a wetland

机译：评估两种增强湿地石油去除能力的商业生物强化产品

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This research evaluated the performance of two commercial bioaugmentation products to enhance petroleum bioremediation in a wetland.The 152-day experiment was conducted at a research facility on the San Jacinto River near Houston,TX,USA,using a controlled oil application to reduce heterogeneity normally associated with spilled petroleum.Additional treatments included inorganic nutrients and an oiled control(intrinsic).Sediment samples were analyzed for petroleum chemistry,nutrients,microbial population numbers(most-probable-number),and toxicity(Microtox? 100%Test and amphipod bioassay).The GC-MS results for"total target saturate hydrocarbons"and"total target aromatic hydrocarbons"were hopane-normalized for petroleum biodegradation interpretation.When comparing the enhanced treatments to the oiled control,there were no statistical differences in the first-order biodegradation rate coefficients.Similarly,there were no statistical differences in the microbial population numbers.The nutrient analyses indicated that there were higher ammonium concentrations for the inorganic nutrients treatment and one of the bioaugmentation product treatments.There was statistically-higher amphipod mortality for all three bioremediation treatments as well as the oiled control when compared to the unoiled control plots.However,whether this is due to the amendments or the oil is uncertain.There was no statistical correlation between oil concentrations and Microtox? toxicity(r~2 < 0.01).Overall,none of the bioremediation treatments appeared to benefit the wetland recovery in these environmental conditions.
机译：这项研究评估了两种商业生物增强产品在湿地上增强石油生物修复的性能。这项为期152天的实验是在美国德克萨斯州休斯顿附近的圣哈辛托河上的一个研究设施中进行的，使用受控的石油施用通常可减少异质性其他处理方法包括无机营养物和上油对照（本征）。分析沉积物样品的石油化学，营养物，微生物种群数（最可能数）和毒性（Microtox？100％测试和两栖动物生物测定） ）。将“总目标饱和烃”和“总目标芳烃”的GC-MS结果进行正庚烷标准化以用于石油生物降解解释。当将强化处理与上油对照进行比较时，一阶无统计学差异。同样，微生物种群数量也没有统计学差异。 nt分析表明，无机养分处理和其中一种生物强化产品处理的铵浓度较高。与未加油的对照样地相比，这三种生物修复处理和加油的对照的两栖动物死亡率都有统计学意义的较高。究竟是由于修正案还是由于机油的不确定性。机油浓度与Microtox之间没有统计相关性吗？毒性（r〜2 <0.01）。总体而言，在这些环境条件下，没有任何生物修复方法对湿地恢复有益。

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