Effect of additional food waste slurry generated by mesophilic acidogenic fermentation on nutrient removal and sludge properties during wastewater treatment

Tang, J; Pu, Y; Wang, XC; Hu, Y; Huang, J; Ngo, HH; Pan, S; Li, Y; Zhu, N

Effect of additional food waste slurry generated by mesophilic acidogenic fermentation on nutrient removal and sludge properties during wastewater treatment

Tang, J Pu, Y Wang, XC Hu, Y Huang, J Ngo, HH

Pan, S Li, Y Zhu, N

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Publication Type:: Journal Article
Citation:: Bioresource Technology, 2019, 294
Issue Date:: 2019-12-01

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Field	Value	Language
dc.contributor.author	Tang, J	en_US
dc.contributor.author	Pu, Y	en_US
dc.contributor.author	Wang, XC	en_US
dc.contributor.author	Hu, Y	en_US
dc.contributor.author	Huang, J	en_US
dc.contributor.author	Ngo, HH https://orcid.org/0000-0002-0296-2866	en_US
dc.contributor.author	Pan, S	en_US
dc.contributor.author	Li, Y	en_US
dc.contributor.author	Zhu, N	en_US
dc.date.available	2019-09-28	en_US
dc.date.issued	2019-12-01	en_US
dc.identifier.citation	Bioresource Technology, 2019, 294	en_US
dc.identifier.issn	0960-8524	en_US
dc.identifier.uri	http://hdl.handle.net/10453/137242
dc.description.abstract	© 2019 Elsevier Ltd Fermentation slurry from food waste (FSFW) generated by acidogenic fermentation at mesophilic temperature was utilized to improve the nutrients removal from wastewater. Organic acids (such as lactate and volatile fatty acids) in the FSFW behaved as readily biodegradable carbon sources, while the particulate and macromolecular organics acted as slowly biodegradable carbon sources during denitrification processes. The FSFW dosage significantly influenced the nitrogen removal performance, and a C/N ratio (in terms of chemical oxygen demand to nitrogen ratio) of 8 could achieve complete denitrification in the batch tests. In a sequencing batch reactor (SBR) using FSFW for long-term wastewater treatment, extracellular polymeric substances (EPS) gradually accumulated, sludge particle size significantly increased, and microbial communities were selectively enriched, which contributed to promoting the nitrogen (>80%) and phosphate (90.1%) removal efficiencies. Overall, the FSFW produced by acidogenic fermentation under mesophilic temperature served as an excellent intermediary between FW valorization and wastewater treatment.	en_US
dc.relation.ispartof	Bioresource Technology	en_US
dc.relation.isbasedon	10.1016/j.biortech.2019.122218	en_US
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.subject.classification	Biotechnology	en_US
dc.subject.mesh	Carbon	en_US
dc.subject.mesh	Nitrogen	en_US
dc.subject.mesh	Bioreactors	en_US
dc.subject.mesh	Sewage	en_US
dc.subject.mesh	Refuse Disposal	en_US
dc.subject.mesh	Waste Disposal, Fluid	en_US
dc.subject.mesh	Fermentation	en_US
dc.subject.mesh	Food	en_US
dc.subject.mesh	Denitrification	en_US
dc.subject.mesh	Waste Water	en_US
dc.subject.mesh	Nutrients	en_US
dc.title	Effect of additional food waste slurry generated by mesophilic acidogenic fermentation on nutrient removal and sludge properties during wastewater treatment	en_US
dc.type	Journal Article
utslib.citation.volume	294	en_US
utslib.for	1002 Environmental Biotechnology	en_US
pubs.embargo.period	Not known	en_US
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	*
utslib.copyright.embargo	2021-12-01T00:00:00+1100
pubs.publication-status	Published	en_US
pubs.volume	294	en_US

Abstract:

© 2019 Elsevier Ltd Fermentation slurry from food waste (FSFW) generated by acidogenic fermentation at mesophilic temperature was utilized to improve the nutrients removal from wastewater. Organic acids (such as lactate and volatile fatty acids) in the FSFW behaved as readily biodegradable carbon sources, while the particulate and macromolecular organics acted as slowly biodegradable carbon sources during denitrification processes. The FSFW dosage significantly influenced the nitrogen removal performance, and a C/N ratio (in terms of chemical oxygen demand to nitrogen ratio) of 8 could achieve complete denitrification in the batch tests. In a sequencing batch reactor (SBR) using FSFW for long-term wastewater treatment, extracellular polymeric substances (EPS) gradually accumulated, sludge particle size significantly increased, and microbial communities were selectively enriched, which contributed to promoting the nitrogen (>80%) and phosphate (90.1%) removal efficiencies. Overall, the FSFW produced by acidogenic fermentation under mesophilic temperature served as an excellent intermediary between FW valorization and wastewater treatment.

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http://hdl.handle.net/10453/137242