Successful year-round mainstream partial nitritation anammox: Assessment of effluent quality, performance and N₂O emissions.

ABSTRACT: For two decades now, partial nitritation anammox (PNA) systems were suggested to more efficiently remove nitrogen (N) from mainstream municipal wastewater. Yet to date, only a few pilot-scale systems and even fewer full-scale implementations of this technology have been described. Process instability continues to restrict the broad application of PNA. Especially problematic are insufficient anammox biomass retention, the growth of undesired aerobic nitrite-oxidizers, and nitrous oxide (N₂O) emissions. In this study, a two-stage mainstream pilot-scale PNA system, consisting of three reactors (carbon pre-treatment, nitritation, anammox - 8 m³ each), was operated over a year, treating municipal wastewater. The aim was to test whether both, robust autotrophic N removal an

SUBMITTER: Hausherr D 

PROVIDER: S-EPMC9250041 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature