Combined effect of inertial and differential transport on aggregates after ceased mechanized flocculation

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade Federal de Uberlândia (UFU)-
Autor(es): dc.creatorMoruzzi, Rodrigo Braga-
Autor(es): dc.creatorGonçalves, Joice-
Autor(es): dc.creatorSperanza, Lais Galileu-
Autor(es): dc.creatorde Oliveira, André Luiz-
Data de aceite: dc.date.accessioned2025-08-21T16:41:53Z-
Data de disponibilização: dc.date.available2025-08-21T16:41:53Z-
Data de envio: dc.date.issued2023-03-02-
Data de envio: dc.date.issued2023-03-02-
Data de envio: dc.date.issued2021-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1590/S1413-415220200291-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/242176-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/242176-
Descrição: dc.descriptionThe velocity gradient can be controlled for aggregates formation during mechanized flocculation, so that aggregates can be subsequently removed in solid/liquid separation units, providing operational flexibility to the system. Batch assays help in finding the optimal coagulation and flocculation conditions, making possible to change gradient velocities and hydraulic detention time. Nevertheless, the secondary effects as result of inertial and differential sedimentation transport over aggregates after mechanized flocculation are not well known. Therefore, this paper aimed to present the combined effect of inertial and differential transport over aggregates, using nonintrusive image technique and particle image velocimetry (PIV). It was possible to verify that the transport of the aggregates formed after the flocculation step is due to the action of the inertial movement of the fluid and differentiated sedimentation, in a proportion that varies over time. The inertial movement is predominant in the influence of the formation of aggregates from the moment when mechanical agitation is stopped (Gf of 20 s-1) until 5.5 ± 0.5 minutes, when the aggregates are predominantly modified by differential sedimentation. Through the analysis of the aggregates, two moments of growth in their length were observed. The first occured up to the two first minutes, and the other between four and six minutes, when the transition between mechanisms is likely to happen.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionUniversidade Estadual Paulista “Júlio de Mesquita Filho”, SP-
Descrição: dc.descriptionUniversidade Federal de Uberlândia, MG-
Descrição: dc.descriptionUniversidade Estadual Paulista “Júlio de Mesquita Filho”, SP-
Descrição: dc.descriptionCNPq: 301210/2018-7-
Formato: dc.format723-729-
Idioma: dc.languagept_BR-
Relação: dc.relationEngenharia Sanitaria e Ambiental-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectaggregate-
Palavras-chave: dc.subjectflocculation-
Palavras-chave: dc.subjectgradient of velocity-
Palavras-chave: dc.subjectparticle image velocimetry-
Palavras-chave: dc.subjectparticle size distribution-
Título: dc.titleCombined effect of inertial and differential transport on aggregates after ceased mechanized flocculation-
Título: dc.titleInfluência da ação combinada do transporte inercial e da sedimentação diferencial nos agregados após cessada a floculação mecanizada-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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