Assessment of Heterotrophic Growth Supported by Soluble Microbial Products in Anammox Biofilm using Multidimensional Modeling.

Liu, Y; Sun, J; Peng, L; Wang, D; Dai, X; Ni, B-J

Assessment of Heterotrophic Growth Supported by Soluble Microbial Products in Anammox Biofilm using Multidimensional Modeling.

Liu, Y

Sun, J Peng, L Wang, D Dai, X Ni, B-J

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Publisher:: NATURE PUBLISHING GROUP
Publication Type:: Journal Article
Citation:: Sci Rep, 2016, 6, (1), pp. 27576
Issue Date:: 2016-06-07

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Field	Value	Language
dc.contributor.author	Liu, Y https://orcid.org/0000-0001-6677-7961
dc.contributor.author	Sun, J
dc.contributor.author	Peng, L
dc.contributor.author	Wang, D
dc.contributor.author	Dai, X
dc.contributor.author	Ni, B-J
dc.date.accessioned	2023-03-23T22:52:03Z
dc.date.available	2016-05-23
dc.date.available	2023-03-23T22:52:03Z
dc.date.issued	2016-06-07
dc.identifier.citation	Sci Rep, 2016, 6, (1), pp. 27576
dc.identifier.issn	2045-2322
dc.identifier.issn	2045-2322
dc.identifier.uri	http://hdl.handle.net/10453/168263
dc.description.abstract	Anaerobic ammonium oxidation (anammox) is known to autotrophically convert ammonium to dinitrogen gas with nitrite as the electron acceptor, but little is known about their released microbial products and how these are relative to heterotrophic growth in anammox system. In this work, we applied a mathematical model to assess the heterotrophic growth supported by three key microbial products produced by bacteria in anammox biofilm (utilization associated products (UAP), biomass associated products (BAP), and decay released substrate). Both One-dimensional and two-dimensional numerical biofilm models were developed to describe the development of anammox biofilm as a function of the multiple bacteria-substrate interactions. Model simulations show that UAP of anammox is the main organic carbon source for heterotrophs. Heterotrophs are mainly dominant at the surface of the anammox biofilm with small fraction inside the biofilm. 1-D model is sufficient to describe the main substrate concentrations/fluxes within the anammox biofilm, while the 2-D model can give a more detailed biomass distribution. The heterotrophic growth on UAP is mainly present at the outside of anammox biofilm, their growth on BAP (HetB) are present throughout the biofilm, while the growth on decay released substrate (HetD) is mainly located in the inner layers of the biofilm.
dc.format	Electronic
dc.language	eng
dc.publisher	NATURE PUBLISHING GROUP
dc.relation.ispartof	Sci Rep
dc.relation.isbasedon	10.1038/srep27576
dc.rights	info:eu-repo/semantics/openAccess
dc.subject.mesh	Ammonium Compounds
dc.subject.mesh	Anaerobiosis
dc.subject.mesh	Autotrophic Processes
dc.subject.mesh	Bacteria
dc.subject.mesh	Biofilms
dc.subject.mesh	Biomass
dc.subject.mesh	Computer Simulation
dc.subject.mesh	Heterotrophic Processes
dc.subject.mesh	Kinetics
dc.subject.mesh	Microbial Consortia
dc.subject.mesh	Models, Chemical
dc.subject.mesh	Oxidation-Reduction
dc.subject.mesh	Bacteria
dc.subject.mesh	Biofilms
dc.subject.mesh	Ammonium Compounds
dc.subject.mesh	Biomass
dc.subject.mesh	Anaerobiosis
dc.subject.mesh	Oxidation-Reduction
dc.subject.mesh	Kinetics
dc.subject.mesh	Models, Chemical
dc.subject.mesh	Computer Simulation
dc.subject.mesh	Heterotrophic Processes
dc.subject.mesh	Autotrophic Processes
dc.subject.mesh	Microbial Consortia
dc.subject.mesh	Ammonium Compounds
dc.subject.mesh	Anaerobiosis
dc.subject.mesh	Autotrophic Processes
dc.subject.mesh	Bacteria
dc.subject.mesh	Biofilms
dc.subject.mesh	Biomass
dc.subject.mesh	Computer Simulation
dc.subject.mesh	Heterotrophic Processes
dc.subject.mesh	Kinetics
dc.subject.mesh	Microbial Consortia
dc.subject.mesh	Models, Chemical
dc.subject.mesh	Oxidation-Reduction
dc.title	Assessment of Heterotrophic Growth Supported by Soluble Microbial Products in Anammox Biofilm using Multidimensional Modeling.
dc.type	Journal Article
utslib.citation.volume	6
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	open_access	*
dc.date.updated	2023-03-23T22:51:03Z
pubs.issue	1
pubs.publication-status	Published online
pubs.volume	6
utslib.citation.issue	1

Abstract:

Anaerobic ammonium oxidation (anammox) is known to autotrophically convert ammonium to dinitrogen gas with nitrite as the electron acceptor, but little is known about their released microbial products and how these are relative to heterotrophic growth in anammox system. In this work, we applied a mathematical model to assess the heterotrophic growth supported by three key microbial products produced by bacteria in anammox biofilm (utilization associated products (UAP), biomass associated products (BAP), and decay released substrate). Both One-dimensional and two-dimensional numerical biofilm models were developed to describe the development of anammox biofilm as a function of the multiple bacteria-substrate interactions. Model simulations show that UAP of anammox is the main organic carbon source for heterotrophs. Heterotrophs are mainly dominant at the surface of the anammox biofilm with small fraction inside the biofilm. 1-D model is sufficient to describe the main substrate concentrations/fluxes within the anammox biofilm, while the 2-D model can give a more detailed biomass distribution. The heterotrophic growth on UAP is mainly present at the outside of anammox biofilm, their growth on BAP (HetB) are present throughout the biofilm, while the growth on decay released substrate (HetD) is mainly located in the inner layers of the biofilm.

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http://hdl.handle.net/10453/168263