A lab-scale partial nitritation SBR was operated at 11° C for 300 days used for the treatment
of high-ammonium wastewater, which was inoculated with activated sludge from Rovaniemi …

One of the main challenges for the full-scale implementation of the autotrophic biological
nitrogen removal process is to achieve a stable long-term partial nitritation under the …

Partial nitrification of ammonium to nitrite under oxic conditions (nitritation) is a critical
process for the effective use of alternative nitrogen removal technologies from wastewater …

In this study, the microbial community of nitrifying activated sludge adapted to Finnish
climate conditions was studied to clarify the microbial populations involved in low …

This study focused on comparing bacterial communities from two lab-scale sequencing
batch reactors (SBR) operated in nitritation and nitratation mode, respectively. Four samples …

A granular airlift reactor enriched in ammonia oxidizing bacteria (AOB) was operated at 10°
C performing stable partial nitritation in the long-term. The reactor treated a synthetic low …

Partial nitritation was pointed out as the key step to implement the autotrophic nitrogen
removal processes at low temperature. This study investigated the initiation and …

Partial nitritation and anaerobic ammonium oxidation (PNA) is a useful process for the
treatment of nitrogen-rich centrate from the dewatering of anaerobically digested sludge. A …

Achieving mainstream nitritation with aerobic granules is attractive based on increasing
evidence but generally treating artificial low-ammonium wastewater. Real municipal …

In the last decade, autotrophic nitrogen removal technologies based on anammox
metabolism have become state of the art in urban and industrial wastewater treatment …