Co-digestion of primary sewage sludge with drinking water treatment sludge: A comprehensive evaluation of benefits.

Xie, S; Li, X; Pham, CU; Nguyen, HV; Song, Y; Chetty, K; Kulandaivelu, J; Wang, C; Hai, F; Jiang, G

Co-digestion of primary sewage sludge with drinking water treatment sludge: A comprehensive evaluation of benefits.

Xie, S Li, X

Pham, CU Nguyen, HV Song, Y Chetty, K Kulandaivelu, J Wang, C Hai, F Jiang, G

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Publisher:: Elsevier
Publication Type:: Journal Article
Citation:: Bioresource Technology, 2021, 330, pp. 1-11
Issue Date:: 2021-06

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Field	Value	Language
dc.contributor.author	Xie, S
dc.contributor.author	Li, X https://orcid.org/0000-0003-1768-9556
dc.contributor.author	Pham, CU
dc.contributor.author	Nguyen, HV
dc.contributor.author	Song, Y
dc.contributor.author	Chetty, K
dc.contributor.author	Kulandaivelu, J
dc.contributor.author	Wang, C
dc.contributor.author	Hai, F
dc.contributor.author	Jiang, G
dc.date.accessioned	2022-06-28T06:23:59Z
dc.date.available	2021-03-09
dc.date.available	2022-06-28T06:23:59Z
dc.date.issued	2021-06
dc.identifier.citation	Bioresource Technology, 2021, 330, pp. 1-11
dc.identifier.issn	0960-8524
dc.identifier.issn	1873-2976
dc.identifier.uri	http://hdl.handle.net/10453/158432
dc.description.abstract	Anaerobic co-digestion of primary sludge with two types of drinking water treatment sludge (DWTS), namely iron- or aluminum-rich DWTS (Fe- or Al-DWTS) were systematically evaluated by biochemical methane potential tests, kinetic modelling, downstream process parameters and microbial community analysis. Specific methane yields decreased approximately 19% to 123 mL·g-1 VS, while the hydrolysis constant kh decreased from 0.21 d-1 to 0.18 d-1 for Fe-DWTS at 10% to 40% dosages. On the contrary, specific methane yields decreased 45-55% for Al-DWTS, and kh decreased to 0.14 d-1 at 40% dosage. Significant removals (>95%) of phosphate and hydrogen sulfide were observed for Fe- and Al-DWTS additions at 40% dosage. Microbial community analysis revealed that Al-DWTS increased the abundance of most hydrogenotrophic methanogens, while Fe-DWTS increased the abundance of acetoclastic methanogens. Kinetic modelling further revealed that Fe- and Al-DWTS additions affected the hydrolysis and methanogenesis process kinetics and the methane yield differently.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	Elsevier
dc.relation.ispartof	Bioresource Technology
dc.relation.isbasedon	10.1016/j.biortech.2021.124994
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Biotechnology
dc.subject.mesh	Anaerobiosis
dc.subject.mesh	Bioreactors
dc.subject.mesh	Digestion
dc.subject.mesh	Drinking Water
dc.subject.mesh	Methane
dc.subject.mesh	Sewage
dc.subject.mesh	Water Purification
dc.subject.mesh	Anaerobiosis
dc.subject.mesh	Bioreactors
dc.subject.mesh	Digestion
dc.subject.mesh	Drinking Water
dc.subject.mesh	Methane
dc.subject.mesh	Sewage
dc.subject.mesh	Water Purification
dc.subject.mesh	Methane
dc.subject.mesh	Bioreactors
dc.subject.mesh	Sewage
dc.subject.mesh	Water Purification
dc.subject.mesh	Anaerobiosis
dc.subject.mesh	Digestion
dc.subject.mesh	Drinking Water
dc.title	Co-digestion of primary sewage sludge with drinking water treatment sludge: A comprehensive evaluation of benefits.
dc.type	Journal Article
utslib.citation.volume	330
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
utslib.copyright.status	closed_access	*
pubs.consider-herdc	false
dc.date.updated	2022-06-28T06:23:58Z
pubs.publication-status	Published
pubs.volume	330

Abstract:

Anaerobic co-digestion of primary sludge with two types of drinking water treatment sludge (DWTS), namely iron- or aluminum-rich DWTS (Fe- or Al-DWTS) were systematically evaluated by biochemical methane potential tests, kinetic modelling, downstream process parameters and microbial community analysis. Specific methane yields decreased approximately 19% to 123 mL·g-1 VS, while the hydrolysis constant kh decreased from 0.21 d-1 to 0.18 d-1 for Fe-DWTS at 10% to 40% dosages. On the contrary, specific methane yields decreased 45-55% for Al-DWTS, and kh decreased to 0.14 d-1 at 40% dosage. Significant removals (>95%) of phosphate and hydrogen sulfide were observed for Fe- and Al-DWTS additions at 40% dosage. Microbial community analysis revealed that Al-DWTS increased the abundance of most hydrogenotrophic methanogens, while Fe-DWTS increased the abundance of acetoclastic methanogens. Kinetic modelling further revealed that Fe- and Al-DWTS additions affected the hydrolysis and methanogenesis process kinetics and the methane yield differently.

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http://hdl.handle.net/10453/158432