Influences of granule properties on the performance of autotrophic nitrogen removal granular reactor: A model-based evaluation.

Chen, X; Liu, J; Huo, P; Li, F; Yang, L; Wei, W; Ni, B-J

Influences of granule properties on the performance of autotrophic nitrogen removal granular reactor: A model-based evaluation.

Chen, X Liu, J Huo, P Li, F Yang, L Wei, W Ni, B-J

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Publisher:: ELSEVIER SCI LTD
Publication Type:: Journal Article
Citation:: Bioresour Technol, 2022, 356, pp. 127307
Issue Date:: 2022-07

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Field	Value	Language
dc.contributor.author	Chen, X
dc.contributor.author	Liu, J
dc.contributor.author	Huo, P
dc.contributor.author	Li, F
dc.contributor.author	Yang, L
dc.contributor.author	Wei, W
dc.contributor.author	Ni, B-J
dc.date.accessioned	2023-03-23T02:48:43Z
dc.date.available	2022-05-10
dc.date.available	2023-03-23T02:48:43Z
dc.date.issued	2022-07
dc.identifier.citation	Bioresour Technol, 2022, 356, pp. 127307
dc.identifier.issn	0960-8524
dc.identifier.issn	1873-2976
dc.identifier.uri	http://hdl.handle.net/10453/168169
dc.description.abstract	This work studied the impacts of key granule properties on the granular reactor performing partial nitritation/anammox from the modeling perspective. The results could guide not only future reliable modeling but also practical startup/operation of the reactor. To achieve high total nitrogen (TN) removal whilst avoiding significant N2O production, inoculated granules should be big and anammox-enriched. The optimum boundary layer thickness for maximum TN removal increased with the decreasing diffusivity of soluble components in the granule structure. Even though a thick boundary layer could protect anammox bacteria from elevated dissolved oxygen (DO) (e.g., 0.5 g-O2/m3) and obtain high TN removal (>90.0%) and low N2O production (<1.8%), even complete removal of the boundary layer would fail to provide sufficient substrate for anammox and therefore couldn't increase TN removal to 90.0% and decrease N2O production to <2.4% at insufficient DO (e.g., 0.3 g-O2/m3 in the presence of lifted influent NH4+ concentration).
dc.format	Print-Electronic
dc.language	eng
dc.publisher	ELSEVIER SCI LTD
dc.relation	http://purl.org/au-research/grants/arc/DP220101142
dc.relation.ispartof	Bioresour Technol
dc.relation.isbasedon	10.1016/j.biortech.2022.127307
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Biotechnology
dc.subject.mesh	Autotrophic Processes
dc.subject.mesh	Bioreactors
dc.subject.mesh	Denitrification
dc.subject.mesh	Nitrogen
dc.subject.mesh	Oxidation-Reduction
dc.subject.mesh	Sewage
dc.subject.mesh	Nitrogen
dc.subject.mesh	Bioreactors
dc.subject.mesh	Sewage
dc.subject.mesh	Oxidation-Reduction
dc.subject.mesh	Autotrophic Processes
dc.subject.mesh	Denitrification
dc.subject.mesh	Autotrophic Processes
dc.subject.mesh	Bioreactors
dc.subject.mesh	Denitrification
dc.subject.mesh	Nitrogen
dc.subject.mesh	Oxidation-Reduction
dc.subject.mesh	Sewage
dc.title	Influences of granule properties on the performance of autotrophic nitrogen removal granular reactor: A model-based evaluation.
dc.type	Journal Article
utslib.citation.volume	356
utslib.location.activity	England
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
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	closed_access	*
dc.date.updated	2023-03-23T02:48:38Z
pubs.publication-status	Published
pubs.volume	356

Abstract:

This work studied the impacts of key granule properties on the granular reactor performing partial nitritation/anammox from the modeling perspective. The results could guide not only future reliable modeling but also practical startup/operation of the reactor. To achieve high total nitrogen (TN) removal whilst avoiding significant N2O production, inoculated granules should be big and anammox-enriched. The optimum boundary layer thickness for maximum TN removal increased with the decreasing diffusivity of soluble components in the granule structure. Even though a thick boundary layer could protect anammox bacteria from elevated dissolved oxygen (DO) (e.g., 0.5 g-O2/m3) and obtain high TN removal (>90.0%) and low N2O production (<1.8%), even complete removal of the boundary layer would fail to provide sufficient substrate for anammox and therefore couldn't increase TN removal to 90.0% and decrease N2O production to <2.4% at insufficient DO (e.g., 0.3 g-O2/m3 in the presence of lifted influent NH4+ concentration).

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http://hdl.handle.net/10453/168169