Nitrogen removal enhancement using lactic acid fermentation products from food waste as external carbon sources: Performance and microbial communities

Tang, J; Wang, XC; Hu, Y; Pu, Y; Huang, J; Hao Ngo, H; Zeng, Y; Li, Y

Nitrogen removal enhancement using lactic acid fermentation products from food waste as external carbon sources: Performance and microbial communities

Tang, J Wang, XC Hu, Y Pu, Y Huang, J Hao Ngo, H

Zeng, Y Li, Y

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Publication Type:: Journal Article
Citation:: Bioresource Technology, 2018, 256 pp. 259 - 268
Issue Date:: 2018-05-01

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Field	Value	Language
dc.contributor.author	Tang, J	en_US
dc.contributor.author	Wang, XC	en_US
dc.contributor.author	Hu, Y	en_US
dc.contributor.author	Pu, Y	en_US
dc.contributor.author	Huang, J	en_US
dc.contributor.author	Hao Ngo, H https://orcid.org/0000-0002-0296-2866	en_US
dc.contributor.author	Zeng, Y	en_US
dc.contributor.author	Li, Y	en_US
dc.date.available	2020-05-31T19:05:15Z
dc.date.issued	2018-05-01	en_US
dc.identifier.citation	Bioresource Technology, 2018, 256 pp. 259 - 268	en_US
dc.identifier.issn	0960-8524	en_US
dc.identifier.uri	http://hdl.handle.net/10453/128042
dc.description.abstract	© 2018 Elsevier Ltd In this study, nitrogen removal using the lactic acid fermentation products from food waste and other external chemical carbon sources (sodium acetate, sodium lactate and starch) was investigated. Similar to sodium acetate and lactate, the lactic acid-enriched fermentation liquid from food waste (FLFW) exhibited a high denitrification rate (5.5 mg NOx-N/(g-VSS h)) and potential (0.16 g NO3−-N/g COD), and could achieve high NH4+-N and total nitrogen (TN) removal efficiencies during long-term operation. Using FLFW as supplementary carbon sources reduced the extracellular polymeric substances (EPS) content, improved the settleability and achieved a satisfactory biomass yield of activated sludge. Additionally, the increased microbial metabolic activity and bacterial community diversity and the accumulation of unique bacteria in the activated sludge cultured with FLFW further promoted the organics utilization rate and nitrogen removal efficiency, indicating that the FLFW prepared from solid waste was an ideal carbon source for wastewater treatment.	en_US
dc.relation.ispartof	Bioresource Technology	en_US
dc.relation.isbasedon	10.1016/j.biortech.2018.02.033	en_US
dc.rights	info:eu-repo/semantics/openAccess
dc.subject.classification	Biotechnology	en_US
dc.subject.mesh	Carbon	en_US
dc.subject.mesh	Nitrogen	en_US
dc.subject.mesh	Lactic Acid	en_US
dc.subject.mesh	Bioreactors	en_US
dc.subject.mesh	Sewage	en_US
dc.subject.mesh	Waste Disposal, Fluid	en_US
dc.subject.mesh	Fermentation	en_US
dc.subject.mesh	Denitrification	en_US
dc.subject.mesh	Waste Water	en_US
dc.title	Nitrogen removal enhancement using lactic acid fermentation products from food waste as external carbon sources: Performance and microbial communities	en_US
dc.type	Journal Article
utslib.citation.volume	256	en_US
utslib.for	0904 Chemical Engineering	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	*
pubs.publication-status	Published	en_US
pubs.volume	256	en_US

Abstract:

© 2018 Elsevier Ltd In this study, nitrogen removal using the lactic acid fermentation products from food waste and other external chemical carbon sources (sodium acetate, sodium lactate and starch) was investigated. Similar to sodium acetate and lactate, the lactic acid-enriched fermentation liquid from food waste (FLFW) exhibited a high denitrification rate (5.5 mg NOx-N/(g-VSS h)) and potential (0.16 g NO3−-N/g COD), and could achieve high NH4+-N and total nitrogen (TN) removal efficiencies during long-term operation. Using FLFW as supplementary carbon sources reduced the extracellular polymeric substances (EPS) content, improved the settleability and achieved a satisfactory biomass yield of activated sludge. Additionally, the increased microbial metabolic activity and bacterial community diversity and the accumulation of unique bacteria in the activated sludge cultured with FLFW further promoted the organics utilization rate and nitrogen removal efficiency, indicating that the FLFW prepared from solid waste was an ideal carbon source for wastewater treatment.

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http://hdl.handle.net/10453/128042