Modelling melamine biodegradation in a membrane aerated biofilm reactor

Xu, Y; Peng, L; Liu, Y; Xie, G; Song, S; Ni, BJ

Modelling melamine biodegradation in a membrane aerated biofilm reactor

Xu, Y Peng, L Liu, Y

Xie, G Song, S Ni, BJ

Permalink

Publisher:: ELSEVIER
Publication Type:: Journal Article
Citation:: Journal of Water Process Engineering, 2020, 38
Issue Date:: 2020-12-01

Closed Access

	Filename	Description	Size
	1-s2.0-S2214714420305043-main.pdf	Published version	2.56 MB	Adobe PDF	View/Open

Copyright Clearance Process

Recently Added
In Progress
Closed Access

This item is closed access and not available.

Full metadata record

Field	Value	Language
dc.contributor.author	Xu, Y
dc.contributor.author	Peng, L
dc.contributor.author	Liu, Y https://orcid.org/0000-0001-6677-7961
dc.contributor.author	Xie, G
dc.contributor.author	Song, S
dc.contributor.author	Ni, BJ
dc.date.accessioned	2021-03-07T07:19:05Z
dc.date.available	2021-03-07T07:19:05Z
dc.date.issued	2020-12-01
dc.identifier.citation	Journal of Water Process Engineering, 2020, 38
dc.identifier.issn	2214-7144
dc.identifier.uri	http://hdl.handle.net/10453/146854
dc.description.abstract	© 2020 Elsevier Ltd Membrane aerated biofilm reactor (MABR) system is excellent in developing slow growing microorganisms and treating micropollutants prior to entering the aquatic environment. In this work, a mathematical biofilm model was developed to assess melamine biodegradation under different conditions and to predict the profiles of melamine, nitrogen species and microbial biomass in the MABR system. Comtabolism linked to growth of ammonia oxidizing bacteria (AOB) or heterotrophic bacteria (HB) and their respective metabolism were involved in the model to contribute to melamine biodegradation. Results demonstrated the good predictive performance of the developed model in describing dynamic profiles of melamine, COD and nitrogen species in the MABR system. The relative contribution by AOB-induced cometabolism and metabolism by AOB and HB varied depending on the stratification of the biofilm system with AOB prevalent in the inner layer of the biofilm. Metabolism by AOB and HB played more important roles than AOB-induced cometabolism in melamine removal. Controlling optimal biofilm thickness in the suitable range (e.g., more than 750 μm) might realize better simultaneous removal of melamine and nitrogen. This work might provide further insight on efficient removal of melamine from wastewater.
dc.language	English
dc.publisher	ELSEVIER
dc.relation.ispartof	Journal of Water Process Engineering
dc.relation.isbasedon	10.1016/j.jwpe.2020.101626
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0905 Civil Engineering, 0907 Environmental Engineering
dc.title	Modelling melamine biodegradation in a membrane aerated biofilm reactor
dc.type	Journal Article
utslib.citation.volume	38
utslib.for	0905 Civil Engineering
utslib.for	0907 Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
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
utslib.copyright.status	closed_access	*
dc.date.updated	2021-03-07T07:19:03Z
pubs.publication-status	Published
pubs.volume	38

Abstract:

© 2020 Elsevier Ltd Membrane aerated biofilm reactor (MABR) system is excellent in developing slow growing microorganisms and treating micropollutants prior to entering the aquatic environment. In this work, a mathematical biofilm model was developed to assess melamine biodegradation under different conditions and to predict the profiles of melamine, nitrogen species and microbial biomass in the MABR system. Comtabolism linked to growth of ammonia oxidizing bacteria (AOB) or heterotrophic bacteria (HB) and their respective metabolism were involved in the model to contribute to melamine biodegradation. Results demonstrated the good predictive performance of the developed model in describing dynamic profiles of melamine, COD and nitrogen species in the MABR system. The relative contribution by AOB-induced cometabolism and metabolism by AOB and HB varied depending on the stratification of the biofilm system with AOB prevalent in the inner layer of the biofilm. Metabolism by AOB and HB played more important roles than AOB-induced cometabolism in melamine removal. Controlling optimal biofilm thickness in the suitable range (e.g., more than 750 μm) might realize better simultaneous removal of melamine and nitrogen. This work might provide further insight on efficient removal of melamine from wastewater.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/146854