Abstract Phosphorus-accumulating organisms (PAOs), which harbor metabolic mechanisms
for phosphorus removal, are widely applied in wastewater treatment. Recently, novel PAOs …

Highlights•Among PAOs, the genera Tetrasphaera and Ca. Accumulibacter are both
important in full-scale plants.•GAOs do not appear to be a real problem in full-scale EBPR …

Previous research suggested that two major groups of polyphosphate-accumulating
organisms (PAOs), ie, Ca. Accumulibacter and Tetrasphaera, play cooperative roles in …

Understanding the microbiology of phosphorus (P) removal is considered essential to
knowledge-based optimization of enhanced biological P removal (EBPR) systems …

Although simultaneous P-removal and nitrate reduction has been observed in laboratory
studies as well as full-scale plants, there are contradictory reports on the ability of PAO I to …

Enhanced biological phosphorus removal (EBPR) is considered challenging in the tropics,
based on a great number of laboratory-based studies showing that the polyphosphate …

The identification of phosphate-accumulating organisms (PAOs), denitrifying phosphate-
accumulating organisms (DPAOs) and their relationship is a key pathway for optimizing …

This comprehensive review looks critically what is known about members of the genus
Defluviicoccus, an example of a glycogen accumulating organism (GAO), in wastewater …

There is a growing interest to implement aerobic granular sludge (AGS) in existing
conventional activated sludge (CAS) systems with a continuous flow-through configuration …

Highlights•Recently identified putative PAOs reveal vast metabolic versatility compared to
Accumulibacter.•Electron donors and acceptors drive EBPR community composition and …