Selection of metal ions in different valence states on sludge conditioning: Analysis of hydrophobicity and evaluation of resource recovery capacity

Lin, W; Zeng, J; Zhang, R; He, X; Nan, J; Li, G; Ma, J; Ngo, HH; Ding, A

Selection of metal ions in different valence states on sludge conditioning: Analysis of hydrophobicity and evaluation of resource recovery capacity

Lin, W Zeng, J Zhang, R He, X Nan, J Li, G Ma, J Ngo, HH Ding, A

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Publisher:: Elsevier BV
Publication Type:: Journal Article
Citation:: Journal of Water Process Engineering, 2022, 50, pp. 103297
Issue Date:: 2022-12-01

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Field	Value	Language
dc.contributor.author	Lin, W
dc.contributor.author	Zeng, J
dc.contributor.author	Zhang, R
dc.contributor.author	He, X
dc.contributor.author	Nan, J
dc.contributor.author	Li, G
dc.contributor.author	Ma, J
dc.contributor.author	Ngo, HH
dc.contributor.author	Ding, A
dc.date.accessioned	2023-01-19T05:57:38Z
dc.date.available	2023-01-19T05:57:38Z
dc.date.issued	2022-12-01
dc.identifier.citation	Journal of Water Process Engineering, 2022, 50, pp. 103297
dc.identifier.issn	2214-7144
dc.identifier.uri	http://hdl.handle.net/10453/165249
dc.description.abstract	In this study, we applied three types of metal ions in different valence states (Na+, Ca2+ and Fe3+) to compare their similarities and differences in adjusting sludge properties during the process of sludge conditioning. Under the same ion concentration, the addition of Na+ had strong capacity on damaging α-helix structure with the improvement of sludge hydrophobicity. However, the reduced hydrophobic polysaccharide and the increased hydrophilic protein result in the improvement of sludge hydrophilicity under the addition of Ca2+ and Fe3+. Meanwhile, three types of metal ions all had the better ability on damaging the two-dimension spatial structure of extracellular polymeric substance (EPS) protein due to the effective destruction of β-sheet. Additionally, the application of these three types of metal ions could achieve different resources (existed in sludge) recovery and enhance the value of sludge. This work will help us make a more correct choice when conditioning sludge with metal ions to meet actual needs.
dc.language	en
dc.publisher	Elsevier BV
dc.relation.ispartof	Journal of Water Process Engineering
dc.relation.isbasedon	10.1016/j.jwpe.2022.103297
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0905 Civil Engineering, 0907 Environmental Engineering
dc.title	Selection of metal ions in different valence states on sludge conditioning: Analysis of hydrophobicity and evaluation of resource recovery capacity
dc.type	Journal Article
utslib.citation.volume	50
utslib.for	0905 Civil Engineering
utslib.for	0907 Environmental 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/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	closed_access	*
dc.date.updated	2023-01-19T05:57:37Z
pubs.publication-status	Published
pubs.volume	50

Abstract:

In this study, we applied three types of metal ions in different valence states (Na+, Ca2+ and Fe3+) to compare their similarities and differences in adjusting sludge properties during the process of sludge conditioning. Under the same ion concentration, the addition of Na+ had strong capacity on damaging α-helix structure with the improvement of sludge hydrophobicity. However, the reduced hydrophobic polysaccharide and the increased hydrophilic protein result in the improvement of sludge hydrophilicity under the addition of Ca2+ and Fe3+. Meanwhile, three types of metal ions all had the better ability on damaging the two-dimension spatial structure of extracellular polymeric substance (EPS) protein due to the effective destruction of β-sheet. Additionally, the application of these three types of metal ions could achieve different resources (existed in sludge) recovery and enhance the value of sludge. This work will help us make a more correct choice when conditioning sludge with metal ions to meet actual needs.

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http://hdl.handle.net/10453/165249