Microbial nitrite oxidation is the primary pathway that generates nitrate in wastewater
treatment systems and can be performed by a variety of microbes: namely, nitrite-oxidizing …

Anammox-mediated systems have attracted considerable attention as alternative cost-
effective technologies for sustainable nitrogen (N) removal from wastewater. This review …

Chemically enhanced primary treatment (CEPT) followed by partial nitritation and anammox
(PN/A) and anaerobic digestion (AD) is a promising roadmap to achieve energy-neutral …

Mainstream nitrogen removal via anammox is widely recognized as a promising wastewater
treatment process. However, its application is challenging at large scale due to unstable …

The anaerobic ammonium oxidation (anammox) process has the advantages of high
efficiency and low energy consumption, so it has broad application prospects in biological …

The sulfur autotrophic denitrification (SADN) process is an organic–free denitrification
process that utilizes reduced inorganic sulfur compounds (RISCs) as the electron donor for …

The application of mainstream anammox is highly desirable for municipal wastewater
treatment. However, enrichment of anammox bacteria (AnAOB) is challenging, particularly …

Biofilm process such as integrated fixed-film activated sludge (IFAS) system has been
preliminarily found to produce less nitrous oxide (N 2 O) than suspended sludge system …

Application of partial nitritation (PN)-anammox to mainstream wastewater treatment faces
challenges in low water temperature and low ammonium strength. In this study, a continuous …

The ongoing paradigm shift in sewage management from pollution control to resource
recovery is an integral part of a circular economy. Efforts have traditionally concentrated on …