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dc.creatorSalla,Marcio Ricardo
dc.creatorVieira Soares,Leonardo
dc.creatorAlamy Filho,José Eduardo
dc.creatorDaniel,Luiz Antonio
dc.creatorSchulz,Harry Edmar
dc.date2008-12-01
dc.date.accessioned2019-04-24T21:27:52Z
dc.date.available2019-04-24T21:27:52Z
dc.identifierhttps://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0718-33052008000300008
dc.identifier.urihttp://revistaschilenas.uchile.cl/handle/2250/58465
dc.descriptionThe size of the cross section of an ozonization column influences its hydrodynamic characteristics, which, on its turn, has effects on phenomena that depend on the relative movement between gas bubbles and liquid. To observe the influence of the cross sectional area on gas concentration and bubbles velocity, two columns were used. The first column had a square cross section with side of 0.19m and the second had a circular cross section with diameter of 0.10 m. The ascendant velocities of the bubbles and their concentration were measured in both columns and compared. The transversal spread of the plumes of bubbles was also quantified. The results show that the increase of the cross section of the column, in the proportion studied here, does not result in a similar increase of the cross section of the ascending plume of bubbles. Furthermore, the results of average velocities and concentrations obtained for the smallest cross section resulted independent of the liquid level in the column, while the results for the largest cross section showed to be dependent of this level. The ratio between the cross sectional areas of the larger and the smaller plumes of bubbles decreases for higher distances to the bottom of the columns.
dc.formattext/html
dc.languageen
dc.publisherUniversidad de Tarapacá.
dc.relation10.4067/S0718-33052008000300008
dc.rightsinfo:eu-repo/semantics/openAccess
dc.sourceIngeniare. Revista chilena de ingeniería v.16 n.3 2008
dc.subjectOzone
dc.subjectnon-intrusive laser velocimetry
dc.subjectgas-liquid mass transfer
dc.subjectbubble columns
dc.subjectdiffuser
dc.titleVELOCITY AND CONCENTRATION OF BUBBLES IN OZONIZATION COLUMNS WITH CROSS SECTIONS OF DIFFERENT SIZES


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