Research Progress of N2O Production in Different Wastewater Treatment Processes

In recent years, more and more attention had been paid on emission and control of N2O, which was a kind of strong greenhouse gas. Wastewater biological denitrification process had been regarded as an important anthropogenic source of N2O. This paper focused on analysis of N2O production in different wastewater treatment processes, which included traditional biological denitrification processes and novel biological nitrogen removal processes. It was expected to provide some references for optimizing operation of different biological denitrification processes to realizing emission reduction of N2O.