ANAMMOX (anaerobic ammonium oxidation) represents an energy-efficient process for
biological nitrogen removal, particularly from wastewater streams with low chemical oxygen …

Highlights•Current design and operational strategies for mainstream PN/A are summarized.•
Combined ON/OFF and IN/OUT strategies are necessary for successful operation.•A …

Abstract High nitrate (NO 3−-N) concentration in the effluent of wastewater treatment plants
(WWTPs), cannot meet the increasing stringent discharge limits. Hence, the tertiary …

Although using anammox communities for efficient wastewater treatment has attracted much
attention, the pure anammox bacteria are difficult to obtain, and the potential roles of …

This study proposes a novel strategy of stably enriching anammox in mainstream, based on
the competitive difference to NO 2− between anoxic biofilms and suspended sludge. A …

This study describes an integrated granular sludge and fixed-biofilm (iGB) reactor
innovatively designed to carry out the anammox/partial-denitrification (A/PD) process for …

Anaerobic ammonium oxidation (anammox) is a key N 2-producing process in the global
nitrogen cycle. Major progress in understanding the core mechanism of anammox bacteria …

In low-strength ammonium wastewater (LSAWW) treatment, the application of anammox-
based process is still limited due to extreme instability and the poor nitrogen removal rate …

This study aimed at assessing the performance and microbial community in a granular one-
stage partial nitritation-anammox sequencing batch reactor (PNA-SBR) subjected to …

Anammox aggregates have been extensively observed in high-efficiency nitrogen-removal
reactors, yet the variation and inherent cause of its aggregation capacity related to reactor …