The influence of floc size and hydraulic detention time on the performance of a dissolved air flotation (DAF) pilot unit in the light of a mathematical model

Página do item simplificado
dc.contributor.authorMoruzzi, R. B. [UNESP]
dc.contributor.authorReali, M. A. P.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2015-03-18T15:52:59Z
dc.date.available2015-03-18T15:52:59Z
dc.date.issued2014-12-01
dc.description.abstractThe influence of floc size and hydraulic detention time on the performance of a dissolved air flotation (DAF) pilot unit was investigated in the light of a known mathematical model. The following design and operational parameters were considered: the hydraulic detention time (tdcz) and hydraulic loading rate in the contact zone, the down-flow loading rate in the clarification zone, the particle size distribution (d (F)), and the recirculation rate (p). As a reference for DAF performance analysis, the proposed beta.td parameter from the above mentioned mathematical model was employed. The results indicated that tdcz is an important factor in DAF performance and that d (F) and floc size are also determinants of DAF efficiency. Further, beta.td was sensitive to both design and operational parameters, which were varied in the DAF pilot plant. The performance of the DAF unit decreases with increasing beta.td values because a higher td (considering a fixed beta) or a higher beta (e.g., higher hydrophobicity of the flocs for a fixed td) would be necessary in the reaction zone to reach desired flotation efficiency.en
dc.description.affiliationUniv Estadual Paulista, Geosci & Math Inst IGCE, Geoproc & Terr Planning Dept DEPLA, UNESP, BR-13506900 Rio Claro, SP, Brazil
dc.description.affiliationUniv Sao Paulo EESC USP, Sao Carlos Sch Engn, Dept Hydraul & Sanitat, BR-13 56659 Sao Carlos, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Geosci & Math Inst IGCE, Geoproc & Terr Planning Dept DEPLA, UNESP, BR-13506900 Rio Claro, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.format.extent2445-2452
dc.identifierhttp://dx.doi.org/10.1007/s00449-014-1221-6
dc.identifier.citationBioprocess And Biosystems Engineering. New York: Springer, v. 37, n. 12, p. 2445-2452, 2014.
dc.identifier.doi10.1007/s00449-014-1221-6
dc.identifier.issn1615-7591
dc.identifier.lattes9408665052901005
dc.identifier.orcid0000-0002-1573-3747
dc.identifier.urihttp://hdl.handle.net/11449/116269
dc.identifier.wosWOS:000344772200007
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofBioprocess And Biosystems Engineering
dc.relation.ispartofjcr2.139
dc.relation.ispartofsjr0,640
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectParticleen
dc.subjectImage analysisen
dc.subjectMathematic modelen
dc.subjectDissolved air flotationen
dc.titleThe influence of floc size and hydraulic detention time on the performance of a dissolved air flotation (DAF) pilot unit in the light of a mathematical modelen
dc.typeArtigo
dcterms.licensehttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dcterms.rightsHolderSpringer
unesp.author.lattes9408665052901005
unesp.author.orcid0000-0002-1573-3747[1]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Geociências e Ciências Exatas, Rio Claropt

Arquivos

Coleções

Artigos - Planejamento Territorial e Geoprocessamento - IGCE