Key enzymes involved in anammox‐based processes for wastewater treatment: An applied overview. (4th September 2022)

• Record Type: Journal Article
• Authors: Venturin, Bruno; Rodrigues, Heloisa Campeão; Bonassa, Gabriela; Hollas, Camila Ester; Bolsan, Alice Chiapetti; Antes, Fabiane Goldschmidt; De Prá, Marina Celant; Fongaro, Gislaine; Treichel, Helen; Kunz, Airton
• Is Part Of: Water environment research. Volume 94:Number 9(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-09-04
• Subjects: ammonium -- ANAMMOX -- enzymes -- hydrazine -- hydroxylamine -- intermediate metabolite -- metabolic pathways -- nitrogen removal; Water quality management -- Periodicals; Water -- Purification -- Periodicals; Water -- Pollution -- Periodicals; Water -- Pollution; Water -- Purification; Water quality management; Sewage; Water Pollution; Periodicals; Electronic journals; Periodicals; 628.16
• DOI: 10.1002/wer.10780
• Languages: English
• ISSNs: 1061-4303

Abstract

Abstract: The anaerobic ammonium oxidation (anammox) process has attracted significant attention as an economic, robustness, and sustainable method for the treatment of nitrogen (N)‐rich wastewater. Anammox bacteria (AnAOB) coexist with other microorganisms, and particularly with ammonia‐oxidizing bacteria (AOB) and/or heterotrophic bacteria (HB), in symbiosis in favor of the substrate requirement (ammonium and nitrite) of the AnAOB being supplied by these other organisms. The dynamics of these microbial communities have a significant effect on the N‐removal performance, but the corresponding metabolic pathways are still not fully understood. These processes involve many common metabolites that may act as key factors to control the symbiotic interactions between these organisms, to maximize N‐removal efficiency from wastewater. Therefore, this work overviews the current state of knowledge about the metabolism of these microorganisms including key enzymes and intermediate metabolites and summarizes already reported experiences based on the employment of certain metabolites for the improvement of N‐removal using anammox‐based processes. Practitioner Points: Approaches knowledge about the biochemistry and metabolic pathways involved in anammox‐based processes. Some molecular tools can be used to determine enzymatic activity, serving as an optimization in nitrogen removal processes. Enzymatic evaluation allied to the physical–chemical and biomolecular analysis of the nitrogen removal processes expands the application in different effluents. Abstract : Key enzymes and functional genes involved in Anammox‐Based Processes, whether from anammox, nitrifying or denitrifying microorganisms. Highlighting their importance for improving the efficiency and promoting the stability of wastewater treatment systems. As well as important insights involving these microorganisms and their metabolic pathways and intermediates.