【摘要】 以厌氧氨氧化-反硝化厌氧甲烷氧化（Anammox-DAMO）系统为研究对象,考察了不同温度对该系统性能和N₂O产消的影响,建立了该过程的酶动力学模型.结果表明,在40℃的高温胁迫下系统性能明显恶化且积累了更多的N₂O,Acidovorax和Thauera属丰度在高温条件下显著降低,而Bacillus属丰度则上升,N₂O还原酶活性的抑制是N₂O排放量增加的主要因素.酶动力学拟合结果表明35℃时可以最大程度地实现N₂O减排.更多还原

【Abstract】 The Anammox-DAMO system was used to investigate the effects of temperature on the system performance and N₂O production and consumption.The enzymatic kinetics model of the process was established.The results showed that the system performance deteriorated significantly and more N₂O was accumulated under the high temperature stress（40°C）.The abundance of Acidovorax and Thauera genera decreased significantly under high temperature conditions,while the abundance of Bacillus genera increased.Inhibition of N₂O reductase activity was the main cause of the increase in N₂O emissions.The enzyme kinetics results indicated that N₂O emission reduction can be maximized at 35°C.更多还原