Synergism and physiological characteristics of glycogen accumulating organisms (GAOs) in anaerobic ammonia oxidation based (anammox-based) systems: Mechanisms and prospects

Zhen, J; Oehmen, A; Wei, W; Ni, SQ; Ni, BJ

Synergism and physiological characteristics of glycogen accumulating organisms (GAOs) in anaerobic ammonia oxidation based (anammox-based) systems: Mechanisms and prospects

Zhen, J Oehmen, A Wei, W

Ni, SQ Ni, BJ

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Publisher:: ELSEVIER SCIENCE SA
Publication Type:: Journal Article
Citation:: Chemical Engineering Journal, 2023, 478
Issue Date:: 2023-12-15

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Field	Value	Language
dc.contributor.author	Zhen, J
dc.contributor.author	Oehmen, A
dc.contributor.author	Wei, W https://orcid.org/0000-0001-5613-337X
dc.contributor.author	Ni, SQ
dc.contributor.author	Ni, BJ
dc.date.accessioned	2024-04-10T06:06:55Z
dc.date.available	2024-04-10T06:06:55Z
dc.date.issued	2023-12-15
dc.identifier.citation	Chemical Engineering Journal, 2023, 478
dc.identifier.issn	1385-8947
dc.identifier.issn	1873-3212
dc.identifier.uri	http://hdl.handle.net/10453/177654
dc.description.abstract	The recently proposed glycogen accumulating organisms (GAOs)-driven anammox process, which terminates nitrate (NO3–) reduction to nitrite (NO2–) without external carbon source addition, has emerged as a promising alternative for supplying NO2– to anammox bacteria. The endogenous partial denitrification anammox (EPDA) process demonstrates superior nitrogen elimination efficiency, cost-effectiveness, and operational stability in low C/N wastewater treatment, concurrently mitigating greenhouse gas releases. This comprehensive review presents and discusses an in-depth analysis of the notable progress in EPDA, covering the physiology and biochemistry of diverse GAO-lineages under specified conditions, intricate microbial interactions and metabolic pathways shared between GAOs and anammox bacteria, and appropriate process modifications. Strategies for sludge morphology, carbon content, and spatial distribution of functional bacteria are discussed in detail to regulate the metabolic activity of EPDA. Future research needs to focus on balancing the competitiveness between functional consortia such as GAOs, phosphorus accumulating organisms (PAOs) and anammox bacteria in the synergetic system, and countermeasures to deal with the effects of adverse conditions on nutrient removal performance of the EPDA-based processes.
dc.language	English
dc.publisher	ELSEVIER SCIENCE SA
dc.relation	http://purl.org/au-research/grants/arc/DP220101142
dc.relation	http://purl.org/au-research/grants/arc/DP220101139
dc.relation	http://purl.org/au-research/grants/arc/DE220100530
dc.relation.ispartof	Chemical Engineering Journal
dc.relation.isbasedon	10.1016/j.cej.2023.147316
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0904 Chemical Engineering, 0905 Civil Engineering, 0907 Environmental Engineering
dc.subject.classification	Chemical Engineering
dc.subject.classification	4004 Chemical engineering
dc.subject.classification	4011 Environmental engineering
dc.subject.classification	4016 Materials engineering
dc.title	Synergism and physiological characteristics of glycogen accumulating organisms (GAOs) in anaerobic ammonia oxidation based (anammox-based) systems: Mechanisms and prospects
dc.type	Journal Article
utslib.citation.volume	478
utslib.for	0904 Chemical Engineering
utslib.for	0905 Civil Engineering
utslib.for	0907 Environmental Engineering
pubs.organisational-group	University of Technology Sydney
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
utslib.copyright.status	closed_access	*
dc.date.updated	2024-04-10T06:06:50Z
pubs.publication-status	Published
pubs.volume	478

Abstract:

The recently proposed glycogen accumulating organisms (GAOs)-driven anammox process, which terminates nitrate (NO3–) reduction to nitrite (NO2–) without external carbon source addition, has emerged as a promising alternative for supplying NO2– to anammox bacteria. The endogenous partial denitrification anammox (EPDA) process demonstrates superior nitrogen elimination efficiency, cost-effectiveness, and operational stability in low C/N wastewater treatment, concurrently mitigating greenhouse gas releases. This comprehensive review presents and discusses an in-depth analysis of the notable progress in EPDA, covering the physiology and biochemistry of diverse GAO-lineages under specified conditions, intricate microbial interactions and metabolic pathways shared between GAOs and anammox bacteria, and appropriate process modifications. Strategies for sludge morphology, carbon content, and spatial distribution of functional bacteria are discussed in detail to regulate the metabolic activity of EPDA. Future research needs to focus on balancing the competitiveness between functional consortia such as GAOs, phosphorus accumulating organisms (PAOs) and anammox bacteria in the synergetic system, and countermeasures to deal with the effects of adverse conditions on nutrient removal performance of the EPDA-based processes.

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http://hdl.handle.net/10453/177654