VELOCITY AND CONCENTRATION OF BUBBLES IN OZONIZATION COLUMNS WITH CROSS SECTIONS OF DIFFERENT SIZES

The 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...

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Autores principales:	Salla,Marcio Ricardo, Vieira Soares,Leonardo, Alamy Filho,José Eduardo, Daniel,Luiz Antonio, Schulz,Harry Edmar
Lenguaje:	English
Publicado:	Universidad de Tarapacá. 2008
Materias:	Ozone non-intrusive laser velocimetry gas-liquid mass transfer bubble columns diffuser
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-33052008000300008
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spelling	oai:scielo:S0718-330520080003000082009-01-27VELOCITY AND CONCENTRATION OF BUBBLES IN OZONIZATION COLUMNS WITH CROSS SECTIONS OF DIFFERENT SIZESSalla,Marcio RicardoVieira Soares,LeonardoAlamy Filho,José EduardoDaniel,Luiz AntonioSchulz,Harry Edmar Ozone non-intrusive laser velocimetry gas-liquid mass transfer bubble columns diffuser The 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.info:eu-repo/semantics/openAccessUniversidad de Tarapacá.Ingeniare. Revista chilena de ingeniería v.16 n.3 20082008-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-33052008000300008en10.4067/S0718-33052008000300008
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Ozone non-intrusive laser velocimetry gas-liquid mass transfer bubble columns diffuser
spellingShingle	Ozone non-intrusive laser velocimetry gas-liquid mass transfer bubble columns diffuser Salla,Marcio Ricardo Vieira Soares,Leonardo Alamy Filho,José Eduardo Daniel,Luiz Antonio Schulz,Harry Edmar VELOCITY AND CONCENTRATION OF BUBBLES IN OZONIZATION COLUMNS WITH CROSS SECTIONS OF DIFFERENT SIZES
description	The 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.
author	Salla,Marcio Ricardo Vieira Soares,Leonardo Alamy Filho,José Eduardo Daniel,Luiz Antonio Schulz,Harry Edmar
author_facet	Salla,Marcio Ricardo Vieira Soares,Leonardo Alamy Filho,José Eduardo Daniel,Luiz Antonio Schulz,Harry Edmar
author_sort	Salla,Marcio Ricardo
title	VELOCITY AND CONCENTRATION OF BUBBLES IN OZONIZATION COLUMNS WITH CROSS SECTIONS OF DIFFERENT SIZES
title_short	VELOCITY AND CONCENTRATION OF BUBBLES IN OZONIZATION COLUMNS WITH CROSS SECTIONS OF DIFFERENT SIZES
title_full	VELOCITY AND CONCENTRATION OF BUBBLES IN OZONIZATION COLUMNS WITH CROSS SECTIONS OF DIFFERENT SIZES
title_fullStr	VELOCITY AND CONCENTRATION OF BUBBLES IN OZONIZATION COLUMNS WITH CROSS SECTIONS OF DIFFERENT SIZES
title_full_unstemmed	VELOCITY AND CONCENTRATION OF BUBBLES IN OZONIZATION COLUMNS WITH CROSS SECTIONS OF DIFFERENT SIZES
title_sort	velocity and concentration of bubbles in ozonization columns with cross sections of different sizes
publisher	Universidad de Tarapacá.
publishDate	2008
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-33052008000300008
work_keys_str_mv	AT sallamarcioricardo velocityandconcentrationofbubblesinozonizationcolumnswithcrosssectionsofdifferentsizes AT vieirasoaresleonardo velocityandconcentrationofbubblesinozonizationcolumnswithcrosssectionsofdifferentsizes AT alamyfilhojoseeduardo velocityandconcentrationofbubblesinozonizationcolumnswithcrosssectionsofdifferentsizes AT danielluizantonio velocityandconcentrationofbubblesinozonizationcolumnswithcrosssectionsofdifferentsizes AT schulzharryedmar velocityandconcentrationofbubblesinozonizationcolumnswithcrosssectionsofdifferentsizes
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VELOCITY AND CONCENTRATION OF BUBBLES IN OZONIZATION COLUMNS WITH CROSS SECTIONS OF DIFFERENT SIZES

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