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dc.contributor.authorDing, W
dc.contributor.authorJin, W
dc.contributor.authorZhou, X
dc.contributor.authorYang, Q
dc.contributor.authorChen, C
dc.contributor.authorWang, Q
dc.date.accessioned2020-12-18T01:05:46Z
dc.date.available2020-12-18T01:05:46Z
dc.date.issued2020
dc.identifier.issn0959-6526
dc.identifier.doi10.1016/j.jclepro.2020.124968
dc.identifier.urihttp://hdl.handle.net/10072/400363
dc.description.abstractFe(II) activated peroxydisulfate (PDS) conditioning and sludge granulation were conducted to investigate the dewaterability of anaerobic granular sludge (AGS). After Fe(II)-PDS conditioning, the dewaterability of three AGS from different sources was enhanced. The specific resistance to filtration (SRF) reduction rates were achieved (98.30% ± 0.19%, 99.51% ± 0.17% and 96.47% ± 1.25%, respectively) under the optimal Fe(II) and PDS additions; And the optimal reductions of capillary suction time (CST) were 93.49% ± 2.49%, 95.33% ± 0.02% and 88.04% ± 2.95%, respectively. The mechanism of improving AGS dewaterability by Fe(II)-PDS conditioning was proposed. The radical SO4⋅−/OH⋅ destroyed the structure of extracellular polymeric substances (EPS) layers and microbial cells, resulting in the bound water released from AGS. Thereafter, the generated Fe(III) facilitated the sludge re-flocculation and decreased the electrostatic repulsion. During a 132-day granulation, the CST value showed a positive correlation with protein (S-EPS), polysaccharide and zeta potential, and a negative correlation with protein (LB-EPS), protein (TB-EPS), particle size and VSS. Collectively, the protein was the primary component in AGS and showed a strong correlation with dewaterability. The variations of protein in TB-EPS during the conditioning and the granulation were consistent with the changes of sludge dewaterability.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherElsevier
dc.relation.ispartofjournalJournal of Cleaner Production
dc.subject.fieldofresearchEnvironmental Engineering
dc.subject.fieldofresearchManufacturing Engineering
dc.subject.fieldofresearchInterdisciplinary Engineering
dc.subject.fieldofresearchcode0907
dc.subject.fieldofresearchcode0910
dc.subject.fieldofresearchcode0915
dc.titleRole of extracellular polymeric substances in anaerobic granular sludge: Assessing dewaterability during Fe(II)-peroxydisulfate conditioning and granulation processes
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationDing, W; Jin, W; Zhou, X; Yang, Q; Chen, C; Wang, Q, Role of extracellular polymeric substances in anaerobic granular sludge: Assessing dewaterability during Fe(II)-peroxydisulfate conditioning and granulation processes, Journal of Cleaner Production, 2020
dc.date.updated2020-12-18T01:03:12Z
gro.description.notepublicThis publication has been entered as an advanced online version in Griffith Research Online.
gro.hasfulltextNo Full Text
gro.griffith.authorWang, Qilin


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