Coupling of Anammox Activity and PAH Biodegradation: Current Insights and Future Directions

Anaerobic ammonium oxidation (anammox) has shown success in past years for the treatment of municipal and industrial wastewater containing inorganic nutrients (i.e., nitrogen). However, increase polycyclic aromatic hydrocarbon (PAH)-contaminated matrices calls new strategies efficient environmentally sustainable remediation. Therefore, present review examined literature on connection between anammox process PAHs using VOSviewer to shed light mechanisms involved during PAH biodegradation key factors affecting bacteria. The scientific thoroughly discussed here shows that can be nitrogen removal by acting as electron donors, their presence does not adversely affect Anammox activity improved regulating operating parameters (e.g., organic load, dissolved oxygen, carbon-to-nitrogen ratio) external supplementation calcium nitrate) promote changes microbial community Candidatus Jettenia), favoring degradation. onset a synergistic dissimilatory nitrate reduction partial denitrification beneficial removal.