College of Environment and Resources, Inner Mongolia University, Hohhot 010021, PR China.
College of Environment and Resources, Inner Mongolia University, Hohhot 010021, PR China.
Bioresour Technol. 2015 Dec;197:113-9. doi: 10.1016/j.biortech.2015.08.067. Epub 2015 Aug 22.
In this study, the effect of quinoline on nitrification in an activated sludge system was evaluated in batch assays. Quinoline was evaluated to partial nitrification process or to partial nitrification-quinoline degrading process. In partial nitrification assays, 50-150mg/L quinoline presence promoted the ammonium oxidation efficiency (200-100%). Nonetheless, the consumption efficiencies for quinoline were less than 66.6%. On the other hand, in partial nitrification-quinoline degrading process, the promotion effect of quinoline (50-150mg/L) diminished significantly, ammonium oxidation were similarity to the control. However, the consumption efficiencies for quinoline were nearly 100%. DGGE results showed that the bacteria communities varied significantly. Acidovorax sp. JS42 and Acidovorax ebreus TPSY were responsible for ammonium oxidation in partial nitrification process, while Nitrosomonas in partial nitrification-quinoline degrading process. This information might be useful for treating wastewaters of ammonium/quinoline by partial nitrification technology.
在这项研究中，通过批式实验评估了喹啉对活性污泥系统硝化作用的影响。评估了喹啉对部分硝化过程或部分硝化-喹啉降解过程的影响。在部分硝化实验中，50-150mg/L 喹啉的存在促进了氨氧化效率（200-100%）。然而，喹啉的消耗效率小于 66.6%。另一方面，在部分硝化-喹啉降解过程中，喹啉（50-150mg/L）的促进作用显著减弱，氨氧化与对照组相似。然而，喹啉的消耗效率接近 100%。DGGE 结果表明，细菌群落发生了显著变化。JS42 属 Acidovorax 和 TPSY 属 Acidovorax ebreus 负责部分硝化过程中的氨氧化，而部分硝化-喹啉降解过程中的氨氧化由亚硝化单胞菌属（Nitrosomonas）完成。这些信息可能对采用部分硝化技术处理含铵/喹啉废水有用。
