Journal
ENVIRONMENTAL RESEARCH
Volume 223, Issue -, Pages -Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.envres.2023.115464
Keywords
Anammox; Metabolic response; Environmental factors; Quorum sensing; Cross-feeding mechanism
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This review presents the latest advances in research on the effects of different environmental factors on the metabolic pathway of anammox bacteria. It summarizes the impacts and mechanisms of conventional environmental factors and emerging pollutants on anammox metabolic processes. The review also discusses the role of quorum sensing in mediating bacterial growth, gene expression, and other metabolic processes in the anammox system. Additionally, it explores the interaction and cross-feeding mechanisms of microbial communities in the anammox system.
Anaerobic ammonium oxidation (anammox) is a promising low carbon and economic biological nitrogen removal technology. Considering the anammox technology has been easily restricted by environmental factors in practical engineering applications, therefore, it is necessary to understand the metabolic response characteristics of anammox bacteria to different environmental factors, and then guide the application of the anammox process. This review presented the latest advances of the research progress of the effects of different environmental factors on the metabolic pathway of anammox bacteria. The effects as well as mechanisms of conventional environ-mental factors and emerging pollutants on the anammox metabolic processes were summarized. Also, the role of quorum sensing (QS) mediating the bacteria growth, gene expression and other metabolic process in the anammox system were also reviewed. Finally, interaction and cross-feeding mechanisms of microbial commu-nities in the anammox system were discussed. This review systematically summarized the variations of metabolic mechanism response to the external environment and cross-feeding interactions in the anammox process, which would provide an in-depth understanding for the anammox metabolic process and a comprehensive guidance for future anammox-related metabolic studies and engineering applications.
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