Pilot-scale two-phase anaerobic digestion of deoiled food waste and waste activated sludge: Effects of mixing ratios and functional analysis.

Jiang, W; Tao, J; Luo, J; Xie, W; Zhou, X; Cheng, B; Guo, G; Ngo, HH; Guo, W; Cai, H; Ye, Y; Chen, Y; Pozdnyakov, IP

Pilot-scale two-phase anaerobic digestion of deoiled food waste and waste activated sludge: Effects of mixing ratios and functional analysis.

Jiang, W Tao, J Luo, J Xie, W Zhou, X Cheng, B Guo, G Ngo, HH Guo, W

Cai, H Ye, Y Chen, Y Pozdnyakov, IP

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Publisher:: Elsevier
Publication Type:: Journal Article
Citation:: Chemosphere, 2023, 329, pp. 138653
Issue Date:: 2023-07

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Field	Value	Language
dc.contributor.author	Jiang, W
dc.contributor.author	Tao, J
dc.contributor.author	Luo, J
dc.contributor.author	Xie, W
dc.contributor.author	Zhou, X
dc.contributor.author	Cheng, B
dc.contributor.author	Guo, G
dc.contributor.author	Ngo, HH
dc.contributor.author	Guo, W https://orcid.org/0000-0001-5542-2858
dc.contributor.author	Cai, H
dc.contributor.author	Ye, Y
dc.contributor.author	Chen, Y
dc.contributor.author	Pozdnyakov, IP
dc.date.accessioned	2023-09-16T08:13:59Z
dc.date.available	2023-04-08
dc.date.available	2023-09-16T08:13:59Z
dc.date.issued	2023-07
dc.identifier.citation	Chemosphere, 2023, 329, pp. 138653
dc.identifier.issn	0045-6535
dc.identifier.issn	1879-1298
dc.identifier.uri	http://hdl.handle.net/10453/172140
dc.description.abstract	Anaerobic co-digestion of deoiled food waste (dFW) and waste activated sludge (WAS) can address the challenges derived from mono-digestion of FW. In the present study, a pilot-scale methanogenic bioreactor of a two-phase anaerobic digestion system was developed to explore the impact of dFW/WAS volatile solids ratios on the overall performance, microbial community, and metabolic pathways. Besides, the tech-economic of the system was analyzed. The results showed that the degradation efficiency of soluble chemical oxygen demand (SCOD) was more than 84.90% for all the dFW/WAS ratios (v/v) (1:0, 39:1, 29:1, 19:1 and 9:1). Moreover, the dominant genus of bacteria and archaea with different ratios were Lactobacillus (66.84-98.44%) and Methanosaeta (53.66-80.09%), respectively. Co-digestion of dFW and WAS (29: 1 in v/v ratios) obtained the highest yield of methane (0.41 L CH4/Ladded) with approximately 90% of SCOD being removed. In the pilot-scale experiment, the co-digestion of FW and WAS makes positive contribution to reusing solid waste for improving solid management.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	Elsevier
dc.relation.ispartof	Chemosphere
dc.relation.isbasedon	10.1016/j.chemosphere.2023.138653
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.subject.classification	Environmental Sciences
dc.subject.classification	Meteorology & Atmospheric Sciences
dc.subject.mesh	Food
dc.subject.mesh	Sewage
dc.subject.mesh	Anaerobiosis
dc.subject.mesh	Refuse Disposal
dc.subject.mesh	Archaea
dc.subject.mesh	Bioreactors
dc.subject.mesh	Methane
dc.subject.mesh	Archaea
dc.subject.mesh	Methane
dc.subject.mesh	Bioreactors
dc.subject.mesh	Sewage
dc.subject.mesh	Refuse Disposal
dc.subject.mesh	Anaerobiosis
dc.subject.mesh	Food
dc.subject.mesh	Food
dc.subject.mesh	Sewage
dc.subject.mesh	Anaerobiosis
dc.subject.mesh	Refuse Disposal
dc.subject.mesh	Archaea
dc.subject.mesh	Bioreactors
dc.subject.mesh	Methane
dc.title	Pilot-scale two-phase anaerobic digestion of deoiled food waste and waste activated sludge: Effects of mixing ratios and functional analysis.
dc.type	Journal Article
utslib.citation.volume	329
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	embargoed	*
utslib.copyright.embargo	2025-07-01T00:00:00+1000Z
dc.date.updated	2023-09-16T08:13:58Z
pubs.publication-status	Published
pubs.volume	329

Abstract:

Anaerobic co-digestion of deoiled food waste (dFW) and waste activated sludge (WAS) can address the challenges derived from mono-digestion of FW. In the present study, a pilot-scale methanogenic bioreactor of a two-phase anaerobic digestion system was developed to explore the impact of dFW/WAS volatile solids ratios on the overall performance, microbial community, and metabolic pathways. Besides, the tech-economic of the system was analyzed. The results showed that the degradation efficiency of soluble chemical oxygen demand (SCOD) was more than 84.90% for all the dFW/WAS ratios (v/v) (1:0, 39:1, 29:1, 19:1 and 9:1). Moreover, the dominant genus of bacteria and archaea with different ratios were Lactobacillus (66.84-98.44%) and Methanosaeta (53.66-80.09%), respectively. Co-digestion of dFW and WAS (29: 1 in v/v ratios) obtained the highest yield of methane (0.41 L CH4/Ladded) with approximately 90% of SCOD being removed. In the pilot-scale experiment, the co-digestion of FW and WAS makes positive contribution to reusing solid waste for improving solid management.

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

http://hdl.handle.net/10453/172140