Enhanced short-chain fatty acids production from anaerobic fermentation of secondary sludge by lignosulfonate addition: Towards circular economy

Wang, Z; Li, X; Liu, H; Zhou, T; Li, J; Siddiqui, MA; Lin, CSK; Huang, S; Cairney, JM; Wang, Q

Enhanced short-chain fatty acids production from anaerobic fermentation of secondary sludge by lignosulfonate addition: Towards circular economy

Wang, Z

Li, X

Liu, H

Zhou, T

Li, J

Siddiqui, MA Lin, CSK Huang, S Cairney, JM Wang, Q

Permalink

Publisher:: ELSEVIER SCI LTD
Publication Type:: Journal Article
Citation:: Journal of Cleaner Production, 2024, 434
Issue Date:: 2024-01-01

In Progress

	Filename	Description	Size
	Enhanced short-chain fatty acids production from anaerobic fermentation.pdf	Published version	3.51 MB		View/Open

Copyright Clearance Process

Recently Added
In Progress
Open Access

This item is being processed and is not currently available.

Full metadata record

Field	Value	Language
dc.contributor.author	Wang, Z https://orcid.org/0000-0002-8227-2602
dc.contributor.author	Li, X https://orcid.org/0000-0003-1768-9556
dc.contributor.author	Liu, H https://orcid.org/0000-0003-4513-4988
dc.contributor.author	Zhou, T https://orcid.org/0000-0003-3771-6742
dc.contributor.author	Li, J https://orcid.org/0000-0002-2533-3755
dc.contributor.author	Siddiqui, MA
dc.contributor.author	Lin, CSK
dc.contributor.author	Huang, S
dc.contributor.author	Cairney, JM
dc.contributor.author	Wang, Q https://orcid.org/0000-0002-5744-2331
dc.date.accessioned	2025-03-21T10:18:56Z
dc.date.available	2025-03-21T10:18:56Z
dc.date.issued	2024-01-01
dc.identifier.citation	Journal of Cleaner Production, 2024, 434
dc.identifier.issn	0959-6526
dc.identifier.issn	1879-1786
dc.identifier.uri	http://hdl.handle.net/10453/186112
dc.description.abstract	This study is the first to unveil the potential of lignosulfonate as an additive in the production of short-chain fatty acids (SCFAs) from anaerobic fermentation of secondary sludge. Batch-scale tests were performed to assess SCFAs production and distribution with lignosulfonate addition of 20–80 mg/g volatile solids (VS), along with potential mechanisms and phytotoxicity. The results showed that lignosulfonate addition improved the SCFAs production and the ratio of acetic acid, while shortening the fermentation time required. The maximum SCFAs production (185.0 ± 1.0 mg COD/g VS) and acetic acid ratio (51.4 ± 0.6%) were achieved with 60 mg lignosulfonate/g VS at 4 d of fermentation time, outperforming the control (93.1 ± 2.7 mg COD/g VS, 44.4 ± 1.8%). Lignosulfonate addition decreased the zeta potential between sludge particles by 19.9%–45.1%, and increased the extractable extracellular polymeric substances matrix by 1.45–2.33 times, compared to the control group. Furthermore, lignosulfonate addition effectively promoted the solubilization, hydrolysis, and acidification processes by up to 116.0%, 58.8%, and 47.6%, respectively. The seed germination index of Chinese cabbage and lettuce using fermented sludge residues increased by up to 486 ± 29% and 158 ± 13%, respectively. These findings suggest that lignosulfonate addition is a sustainable method for SCFAs recovery from sludge, benefiting sludge agricultural reuse, and contributing to the circular economy.
dc.language	English
dc.publisher	ELSEVIER SCI LTD
dc.relation	http://purl.org/au-research/grants/arc/DP200100933
dc.relation	http://purl.org/au-research/grants/arc/FT200100264
dc.relation.ispartof	Journal of Cleaner Production
dc.relation.isbasedon	10.1016/j.jclepro.2023.140252
dc.rights	info:eu-repo/semantics/restrictedAccess
dc.subject	0907 Environmental Engineering, 0910 Manufacturing Engineering, 0915 Interdisciplinary Engineering
dc.subject.classification	Environmental Sciences
dc.subject.classification	33 Built environment and design
dc.subject.classification	40 Engineering
dc.title	Enhanced short-chain fatty acids production from anaerobic fermentation of secondary sludge by lignosulfonate addition: Towards circular economy
dc.type	Journal Article
utslib.citation.volume	434
utslib.for	0907 Environmental Engineering
utslib.for	0910 Manufacturing Engineering
utslib.for	0915 Interdisciplinary Engineering
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/UTS Groups
pubs.organisational-group	University of Technology Sydney/UTS Groups/INSIGHT: Institute for Innovative Solutions for Wellbeing and Health/Climate Change & Health Research Collaborative (CCHRC)
pubs.organisational-group	University of Technology Sydney/UTS Groups/INSIGHT: Institute for Innovative Solutions for Wellbeing and Health
pubs.organisational-group	University of Technology Sydney/UTS Groups/Centre for Technology in Water and Wastewater (CTWW)
utslib.copyright.status	in_progress	*
dc.date.updated	2025-03-21T10:18:52Z
pubs.publication-status	Published
pubs.volume	434

Abstract:

This study is the first to unveil the potential of lignosulfonate as an additive in the production of short-chain fatty acids (SCFAs) from anaerobic fermentation of secondary sludge. Batch-scale tests were performed to assess SCFAs production and distribution with lignosulfonate addition of 20–80 mg/g volatile solids (VS), along with potential mechanisms and phytotoxicity. The results showed that lignosulfonate addition improved the SCFAs production and the ratio of acetic acid, while shortening the fermentation time required. The maximum SCFAs production (185.0 ± 1.0 mg COD/g VS) and acetic acid ratio (51.4 ± 0.6%) were achieved with 60 mg lignosulfonate/g VS at 4 d of fermentation time, outperforming the control (93.1 ± 2.7 mg COD/g VS, 44.4 ± 1.8%). Lignosulfonate addition decreased the zeta potential between sludge particles by 19.9%–45.1%, and increased the extractable extracellular polymeric substances matrix by 1.45–2.33 times, compared to the control group. Furthermore, lignosulfonate addition effectively promoted the solubilization, hydrolysis, and acidification processes by up to 116.0%, 58.8%, and 47.6%, respectively. The seed germination index of Chinese cabbage and lettuce using fermented sludge residues increased by up to 486 ± 29% and 158 ± 13%, respectively. These findings suggest that lignosulfonate addition is a sustainable method for SCFAs recovery from sludge, benefiting sludge agricultural reuse, and contributing to the circular economy.

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

http://hdl.handle.net/10453/186112