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dc.contributor.authorPenaloza-Giraldo, Jorge A.
dc.contributor.authorHsu, Tian-Jian
dc.contributor.authorManning, Andrew
dc.contributor.authorYe, L
dc.contributor.authorVowinckel, B
dc.contributor.authorMeiburg, E
dc.date.accessioned2023-05-04T23:23:58Z
dc.date.available2023-05-04T23:23:58Z
dc.date.issued2023-04
dc.identifier.issn0043-1354
dc.identifier.issn1879-2448
dc.identifier.other119780
dc.identifier.urihttps://pearl.plymouth.ac.uk/handle/10026.1/20799
dc.description.abstract

Many aquatic environments contain cohesive sediments that flocculate and create flocs with a wide range of sizes. The Population Balance Equation (PBE) flocculation model is designed to predict the time-dependent floc size distribution and should be more complete than models based on median floc size. However, a PBE flocculation model includes many empirical parameters to represent important physical, chemical, and biological processes. We report a systematic investigation of key model parameters of the open-source PBE-based size class flocculation model FLOCMOD (Verney, Lafite, Claude Brun-Cottan and Le Hir, 2011) using the measured temporal floc size statistics reported by Keyvani and Strom (2014) at a constant turbulent shear rate S. Results show that the median floc size d50, in terms of both the equilibrium floc size and the initial floc growth, is insufficient to constrain the model parameters. A comprehensive error analysis shows that the model is capable of predicting three floc size statistics d16, d50 and d84, which also reveals a clear trend that the best calibrated fragmentation rate (inverse of floc yield strength) is proportional to the floc size statistics considered. Motivated by this finding, the importance of floc yield strength is demonstrated in the predicted temporal evolution of floc size by modeling the floc yield strength as microflocs and macroflocs giving two corresponding fragmentation rates. The model shows a significantly improved agreement in matching the measured floc size statistics.

dc.format.extent119780-119780
dc.format.mediumPrint-Electronic
dc.languageen
dc.publisherElsevier BV
dc.subjectFlocculation
dc.subjectPopulation balance equation
dc.subjectCohesive sediment
dc.subjectYield strength
dc.titleOn the importance of temporal floc size statistics and yield strength for population balance equation flocculation model
dc.typejournal-article
dc.typeJournal Article
plymouth.author-urlhttps://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000990967800001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=11bb513d99f797142bcfeffcc58ea008
plymouth.volume233
plymouth.publication-statusPublished
plymouth.journalWater Research
dc.identifier.doi10.1016/j.watres.2023.119780
plymouth.organisational-group|Plymouth
plymouth.organisational-group|Plymouth|Research Groups
plymouth.organisational-group|Plymouth|Faculty of Science and Engineering
plymouth.organisational-group|Plymouth|Faculty of Science and Engineering|School of Biological and Marine Sciences
plymouth.organisational-group|Plymouth|Research Groups|Marine Institute
plymouth.organisational-group|Plymouth|REF 2021 Researchers by UoA
plymouth.organisational-group|Plymouth|Users by role
plymouth.organisational-group|Plymouth|Users by role|Academics
plymouth.organisational-group|Plymouth|REF 2021 Researchers by UoA|UoA07 Earth Systems and Environmental Sciences
dc.publisher.placeEngland
dcterms.dateAccepted2023-02-20
dc.date.updated2023-05-04T23:23:45Z
dc.rights.embargodate10000-01-01
dc.identifier.eissn1879-2448
dc.rights.embargoperiodforever
rioxxterms.versionofrecord10.1016/j.watres.2023.119780


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