Biokinetic characteristics of novel N2O-reducing bacteria: Towards mitigation of N2O emissions from WWTPs

利用含有nosZ基因的一氧化二氮还原剂(N2OR)可以显著减少氮循环中N2O的排放，值得更多的关注。我们应用恒化器来富含N2OR，并对混合培养的生物动力学特性进行了系统的研究，揭示了消耗N2O的优势物种。结果表明，混合培养具有很大的N2O消耗活动潜力。此外，我们的结果强调了高活性氧微生物联合体可以通过添加甲醇的恒化器来获得。这些发现为通过N2OR实现N2O减排提供了新的见解。在未来的工作中，我们将继续关注如何将新型N2OR应用于实际工程应用，以实现N2O减排。

Harnessing of nitrous oxide reducers (N2OR), harbored nosZ gene, can significantly reduce N2O emissions from nitrogen cycles, and deserves more attention. We applied chemostat to enrich N2OR and systematically studied on biokinetic characterizations of mixed cultures, and revealing the dominant species for consuming N2O. The results demonstrated that the mixed culture possessed great potential of N2O consumption activities. Additionally, our results highlighted that the highly active oxygen microbial consortium can be attained by a chemostat fed with methanol. Those findings provide new insights into achieving N2O emissions mitigation by N2OR. In future work, we will continue to focus on how novel N2OR can be applied to practical engineering applications to achieve N2O emission mitigation.