Model-based evaluation of N<inf>2</inf>O recovery as an energy source in sulfur-driven NO-based autotrophic denitrification

Huo, P; Deng, R; Chen, X; Yang, L; Liu, Y; Wu, L; Wei, W; Ni, BJ

Model-based evaluation of N<inf>2</inf>O recovery as an energy source in sulfur-driven NO-based autotrophic denitrification

Huo, P Deng, R Chen, X Yang, L Liu, Y

Wu, L Wei, W Ni, BJ

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Publisher:: Elsevier
Publication Type:: Journal Article
Citation:: Chemical Engineering Journal, 2023, 453, pp. 139732
Issue Date:: 2023-02-01

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Field	Value	Language
dc.contributor.author	Huo, P
dc.contributor.author	Deng, R
dc.contributor.author	Chen, X
dc.contributor.author	Yang, L
dc.contributor.author	Liu, Y https://orcid.org/0000-0001-6677-7961
dc.contributor.author	Wu, L
dc.contributor.author	Wei, W
dc.contributor.author	Ni, BJ
dc.date.accessioned	2023-03-23T01:45:24Z
dc.date.available	2023-03-23T01:45:24Z
dc.date.issued	2023-02-01
dc.identifier.citation	Chemical Engineering Journal, 2023, 453, pp. 139732
dc.identifier.issn	1385-8947
dc.identifier.uri	http://hdl.handle.net/10453/168141
dc.description.abstract	Instead of the conventional perception of nitrous oxide (N2O) as a potent greenhouse gas whose production should be minimized, this work aimed to assess N2O recovery as a potential energy source from nitric oxide (NO) in the form of Fe(II)EDTA-NO through element sulfur (S0) or thiosulfate (S2O32−)-driven NO-based autotrophic denitrification (SNADS0 or SNADS2O3). A mathematical model was proposed to describe substrate dynamics related to N2O production and reduction and was successfully calibrated and validated using batch experimental data from lab-scale SNADS0 and SNADS2O3 systems under different substrates conditions. The model was subsequently employed to assess the potential of N2O accumulation and recovery by altering the S/N mass ratio and the ratio of gas volume to liquid volume of the system. The simulation results suggested that with a S/N mass ratio of nearly 1.0, high-purity N2O could be more rapidly and efficiently recovered from Fe(II)EDTA-NO in the SNADS0 and SNADS2O3 systems with a higher ratio of gas volume to liquid volume (i.e., a N2O recovery efficiency of up to 80.2%−84.9% reached within 3.1 h−3.5 h under the studied conditions). Comparatively, the SNADS0 process showed an economic and viable advantage for practical applications to the efficient treatment and resource utilization of NO-containing flue gas.
dc.language	en
dc.publisher	Elsevier
dc.relation	http://purl.org/au-research/grants/arc/DP220101142
dc.relation.ispartof	Chemical Engineering Journal
dc.relation.isbasedon	10.1016/j.cej.2022.139732
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0904 Chemical Engineering, 0905 Civil Engineering, 0907 Environmental Engineering
dc.subject.classification	Chemical Engineering
dc.title	Model-based evaluation of N<inf>2</inf>O recovery as an energy source in sulfur-driven NO-based autotrophic denitrification
dc.type	Journal Article
utslib.citation.volume	453
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
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	2023-03-23T01:44:44Z
pubs.publication-status	Published
pubs.volume	453

Abstract:

Instead of the conventional perception of nitrous oxide (N2O) as a potent greenhouse gas whose production should be minimized, this work aimed to assess N2O recovery as a potential energy source from nitric oxide (NO) in the form of Fe(II)EDTA-NO through element sulfur (S0) or thiosulfate (S2O32−)-driven NO-based autotrophic denitrification (SNADS0 or SNADS2O3). A mathematical model was proposed to describe substrate dynamics related to N2O production and reduction and was successfully calibrated and validated using batch experimental data from lab-scale SNADS0 and SNADS2O3 systems under different substrates conditions. The model was subsequently employed to assess the potential of N2O accumulation and recovery by altering the S/N mass ratio and the ratio of gas volume to liquid volume of the system. The simulation results suggested that with a S/N mass ratio of nearly 1.0, high-purity N2O could be more rapidly and efficiently recovered from Fe(II)EDTA-NO in the SNADS0 and SNADS2O3 systems with a higher ratio of gas volume to liquid volume (i.e., a N2O recovery efficiency of up to 80.2%−84.9% reached within 3.1 h−3.5 h under the studied conditions). Comparatively, the SNADS0 process showed an economic and viable advantage for practical applications to the efficient treatment and resource utilization of NO-containing flue gas.

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http://hdl.handle.net/10453/168141