Equipe Environnement et Microbiologie, IPREM UMR/CNRS 5254, Université de Pau, 64013 Pau Cedex, France.
Environ Sci Pollut Res Int. 2011 Jul;18(6):1022-32. doi: 10.1007/s11356-010-0435-7. Epub 2011 Mar 10.
We studied the effect of alternations of aeration on both the autochthonous bacterial communities from an oily sludge to the endogenous polycyclic aromatic hydrocarbons (PAH) biodegradation compared to a permanent oxic condition.
Genomic and transcriptional analyses associated with chemical measurements were used to assess the dynamics of bacteria coupled to PAH removal during an incubation of 26 days.
The autochthonous bacterial communities of an oil sludge showed a strong potential to adapt and degrade PAH when they were subjected to alternating anoxic/oxic conditions, as well as under an oxic condition. In addition, changes in the bacterial communities were related to the different phases of hydrocarbon degradation, and the removal efficiency of PAH was similar in both switching and permanent oxic conditions. This methodology could be useful for an alternative solution of oil sludge treatment with a low-cost processing, as its efficiency is similar to that of a permanent oxic incubation which is more expensive in oxygen supply.
我们研究了曝气交替对含油污泥中原生细菌群落对内源性多环芳烃（PAH）生物降解的影响，与持续好氧条件相比。
采用基因组和转录组分析结合化学测量，评估了在 26 天的孵育过程中，细菌与 PAH 去除偶联的动态。
含油污泥的土著细菌群落具有很强的适应能力和 PAH 降解能力，当它们受到缺氧/好氧交替条件以及好氧条件的影响时。此外，细菌群落的变化与烃降解的不同阶段有关，在两种交替和持续好氧条件下，PAH 的去除效率相似。这种方法可以为含油污泥处理提供一种低成本的替代解决方案，因为其效率与更昂贵的持续好氧孵育相似，后者在供氧方面成本更高。
