A comparative study on denitrifying sludge granulation with different electron donors: Sulfide, thiosulfate and organics.

Qian, J; Wei, L; Wu, Y; Wang, Q; Fu, X; Zhang, X; Chang, X; Wang, L; Pei, X

A comparative study on denitrifying sludge granulation with different electron donors: Sulfide, thiosulfate and organics.

Qian, J Wei, L Wu, Y Wang, Q

Fu, X Zhang, X Chang, X Wang, L Pei, X

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Publisher:: Elsevier
Publication Type:: Journal Article
Citation:: Chemosphere, 2017, 186, pp. 322-330
Issue Date:: 2017-11

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Field	Value	Language
dc.contributor.author	Qian, J
dc.contributor.author	Wei, L
dc.contributor.author	Wu, Y
dc.contributor.author	Wang, Q https://orcid.org/0000-0002-5744-2331
dc.contributor.author	Fu, X
dc.contributor.author	Zhang, X
dc.contributor.author	Chang, X
dc.contributor.author	Wang, L
dc.contributor.author	Pei, X
dc.date.accessioned	2022-08-19T05:33:27Z
dc.date.available	2017-07-18
dc.date.available	2022-08-19T05:33:27Z
dc.date.issued	2017-11
dc.identifier.citation	Chemosphere, 2017, 186, pp. 322-330
dc.identifier.issn	0045-6535
dc.identifier.issn	1879-1298
dc.identifier.uri	http://hdl.handle.net/10453/160519
dc.description.abstract	A comparative study on denitrifying sludge granulation with different electron donors (sulfide, thiosulfate and organics) was carried out. Longer time was spent on sulfide-denitrifying granular sludge (DGS) cultivation (88 days) than thiosulfate- and organics-DGS cultivations (57 days). All the three DGS were characterized in terms of particle size distribution, sludge settling ability (indicated by sludge volume index and settling velocity), permeability (indicated by fractal dimension) and extracellular polymeric substances (EPS, including polysaccharide and protein) secretion. Sludge productions in the three DGS-reactors were also monitored. The key functional microorganisms in three granular reactors were revealed via high through-put pyrosequencing analysis. Batch tests were performed to measure the denitrification activities of each DGS, including both denitratation (NO3- → NO2-) and denitritation (NO2- → N2). We found that thiosulfate-driven denitrifying sludge granulation (TDDSG) should be the most efficient and compact technology for effective BNR in municipal wastewater treatment. The findings of this study suggests the TDDSG could further increase the nitrogen removal potential in an enhanced sulfur cycle-driven bioprocess for co-treatment of wet flue gas desulfurization wastes with fresh sewage depending on three short-cut biological reactions, including: 1) short-cut biological sulfur reduction (SO42-/SO32- → S2O32-); 2) thiosulfate-driven denitritation (S2O32- + NO2- → SO42- + N2↑); and 3) nitritation (NH4+ + O2 → NO2-).
dc.format	Print-Electronic
dc.language	eng
dc.publisher	Elsevier
dc.relation.ispartof	Chemosphere
dc.relation.isbasedon	10.1016/j.chemosphere.2017.07.106
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Environmental Sciences
dc.subject.classification	Meteorology & Atmospheric Sciences
dc.subject.mesh	Bioreactors
dc.subject.mesh	Denitrification
dc.subject.mesh	Electrons
dc.subject.mesh	Nitrogen
dc.subject.mesh	Sewage
dc.subject.mesh	Sulfides
dc.subject.mesh	Thiosulfates
dc.subject.mesh	Waste Management
dc.subject.mesh	Bioreactors
dc.subject.mesh	Denitrification
dc.subject.mesh	Electrons
dc.subject.mesh	Nitrogen
dc.subject.mesh	Sewage
dc.subject.mesh	Sulfides
dc.subject.mesh	Thiosulfates
dc.subject.mesh	Waste Management
dc.subject.mesh	Thiosulfates
dc.subject.mesh	Sulfides
dc.subject.mesh	Nitrogen
dc.subject.mesh	Bioreactors
dc.subject.mesh	Sewage
dc.subject.mesh	Waste Management
dc.subject.mesh	Electrons
dc.subject.mesh	Denitrification
dc.title	A comparative study on denitrifying sludge granulation with different electron donors: Sulfide, thiosulfate and organics.
dc.type	Journal Article
utslib.citation.volume	186
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	*
pubs.consider-herdc	false
dc.date.updated	2022-08-19T05:33:26Z
pubs.publication-status	Published
pubs.volume	186

Abstract:

A comparative study on denitrifying sludge granulation with different electron donors (sulfide, thiosulfate and organics) was carried out. Longer time was spent on sulfide-denitrifying granular sludge (DGS) cultivation (88 days) than thiosulfate- and organics-DGS cultivations (57 days). All the three DGS were characterized in terms of particle size distribution, sludge settling ability (indicated by sludge volume index and settling velocity), permeability (indicated by fractal dimension) and extracellular polymeric substances (EPS, including polysaccharide and protein) secretion. Sludge productions in the three DGS-reactors were also monitored. The key functional microorganisms in three granular reactors were revealed via high through-put pyrosequencing analysis. Batch tests were performed to measure the denitrification activities of each DGS, including both denitratation (NO3- → NO2-) and denitritation (NO2- → N2). We found that thiosulfate-driven denitrifying sludge granulation (TDDSG) should be the most efficient and compact technology for effective BNR in municipal wastewater treatment. The findings of this study suggests the TDDSG could further increase the nitrogen removal potential in an enhanced sulfur cycle-driven bioprocess for co-treatment of wet flue gas desulfurization wastes with fresh sewage depending on three short-cut biological reactions, including: 1) short-cut biological sulfur reduction (SO42-/SO32- → S2O32-); 2) thiosulfate-driven denitritation (S2O32- + NO2- → SO42- + N2↑); and 3) nitritation (NH4+ + O2 → NO2-).

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http://hdl.handle.net/10453/160519