The effect of oxygen concentration on comammox bacteria and canonical ammonia oxidizing prokaryotes

In this study, some laboratory-scale airtight reactors were established to study the microbial composition and function of the oxygen content of the air on this energy-saving system. The reactor systems were operated under different oxygen content conditions. It was studied the composition, function, distribution of microbial community and its overall effect on nutrient removal under low oxygen environment in bioreactor system from the perspective of oxygen content in the air.