DETERMINATION OF THE HENRY'S CONSTANT OF VOLATILE AND SEMI-VOLATILE ORGANIC COMPONUDS OF ENVIRONMENTAL CONCERN BY THE BAS (BATCH AIR STRIPPING) TECHNIQUE: A NEW MATHEMATICAL APPROACH

DETERMINATION OF THE HENRY'S CONSTANT OF VOLATILE AND SEMI-VOLATILE ORGANIC COMPONUDS OF ENVIRONMENTAL CONCERN BY THE BAS (BATCH AIR STRIPPING) TECHNIQUE: A NEW MATHEMATICAL APPROACH

Chemical transfer between environmental compartments plays a key role in an adequate command and control of pollutants. The gas-liquid partitioning equilibrium constant, better known as the Henry's constant (K H) represents a crucial parameter in order to determine the environmental fate of che...

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Autores principales: Bobadilla,Roberto, Huybrechts,Tom, Dewulf,Jo, Langenhove,Herman Van
Lenguaje:English
Publicado: Sociedad Chilena de Química 2003
Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072003000300001
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spelling oai:scielo:S0717-970720030003000012004-01-30DETERMINATION OF THE HENRY'S CONSTANT OF VOLATILE AND SEMI-VOLATILE ORGANIC COMPONUDS OF ENVIRONMENTAL CONCERN BY THE BAS (BATCH AIR STRIPPING) TECHNIQUE: A NEW MATHEMATICAL APPROACHBobadilla,RobertoHuybrechts,TomDewulf,JoLangenhove,Herman VanChemical transfer between environmental compartments plays a key role in an adequate command and control of pollutants. The gas-liquid partitioning equilibrium constant, better known as the Henry's constant (K H) represents a crucial parameter in order to determine the environmental fate of chemicals and therefore, an accurate determination at ambient conditions is extremely important to assess the mentioned process. Within the experimental dynamic methods, the batch air stripping technique (BAS) has as major drawback the equilibrium condition among phases, which is hardly achieved in open natural systems. The present work, based on previously published mathematical models (4, 22), centers in the development of a new mathematical approach to determine K H by means of the BAS in non-equilibrium conditions through experimental and theoretical determinations of volumetric mass transfer coefficients (K La) for volatile (1,1-DCE, ethylbenzene, p-xylene and toluene) and semivolatile (1,1,2-TCE, 1,2-DCP, penhylmethylether (anisole) and naphthalene) organic compounds of environmental concern. In order to validate the approach, values obtained were compared to the K H determined through the static EPICS (Equilibrium Partitioning in Closed Systems) method, confirming the calculated K H and ratifying the new approachinfo:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.48 n.3 20032003-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072003000300001en10.4067/S0717-97072003000300001
institution Scielo Chile
collection Scielo Chile
language English
description Chemical transfer between environmental compartments plays a key role in an adequate command and control of pollutants. The gas-liquid partitioning equilibrium constant, better known as the Henry's constant (K H) represents a crucial parameter in order to determine the environmental fate of chemicals and therefore, an accurate determination at ambient conditions is extremely important to assess the mentioned process. Within the experimental dynamic methods, the batch air stripping technique (BAS) has as major drawback the equilibrium condition among phases, which is hardly achieved in open natural systems. The present work, based on previously published mathematical models (4, 22), centers in the development of a new mathematical approach to determine K H by means of the BAS in non-equilibrium conditions through experimental and theoretical determinations of volumetric mass transfer coefficients (K La) for volatile (1,1-DCE, ethylbenzene, p-xylene and toluene) and semivolatile (1,1,2-TCE, 1,2-DCP, penhylmethylether (anisole) and naphthalene) organic compounds of environmental concern. In order to validate the approach, values obtained were compared to the K H determined through the static EPICS (Equilibrium Partitioning in Closed Systems) method, confirming the calculated K H and ratifying the new approach
author Bobadilla,Roberto
Huybrechts,Tom
Dewulf,Jo
Langenhove,Herman Van
spellingShingle Bobadilla,Roberto
Huybrechts,Tom
Dewulf,Jo
Langenhove,Herman Van
DETERMINATION OF THE HENRY'S CONSTANT OF VOLATILE AND SEMI-VOLATILE ORGANIC COMPONUDS OF ENVIRONMENTAL CONCERN BY THE BAS (BATCH AIR STRIPPING) TECHNIQUE: A NEW MATHEMATICAL APPROACH
author_facet Bobadilla,Roberto
Huybrechts,Tom
Dewulf,Jo
Langenhove,Herman Van
author_sort Bobadilla,Roberto
title DETERMINATION OF THE HENRY'S CONSTANT OF VOLATILE AND SEMI-VOLATILE ORGANIC COMPONUDS OF ENVIRONMENTAL CONCERN BY THE BAS (BATCH AIR STRIPPING) TECHNIQUE: A NEW MATHEMATICAL APPROACH
title_short DETERMINATION OF THE HENRY'S CONSTANT OF VOLATILE AND SEMI-VOLATILE ORGANIC COMPONUDS OF ENVIRONMENTAL CONCERN BY THE BAS (BATCH AIR STRIPPING) TECHNIQUE: A NEW MATHEMATICAL APPROACH
title_full DETERMINATION OF THE HENRY'S CONSTANT OF VOLATILE AND SEMI-VOLATILE ORGANIC COMPONUDS OF ENVIRONMENTAL CONCERN BY THE BAS (BATCH AIR STRIPPING) TECHNIQUE: A NEW MATHEMATICAL APPROACH
title_fullStr DETERMINATION OF THE HENRY'S CONSTANT OF VOLATILE AND SEMI-VOLATILE ORGANIC COMPONUDS OF ENVIRONMENTAL CONCERN BY THE BAS (BATCH AIR STRIPPING) TECHNIQUE: A NEW MATHEMATICAL APPROACH
title_full_unstemmed DETERMINATION OF THE HENRY'S CONSTANT OF VOLATILE AND SEMI-VOLATILE ORGANIC COMPONUDS OF ENVIRONMENTAL CONCERN BY THE BAS (BATCH AIR STRIPPING) TECHNIQUE: A NEW MATHEMATICAL APPROACH
title_sort determination of the henry's constant of volatile and semi-volatile organic componuds of environmental concern by the bas (batch air stripping) technique: a new mathematical approach
publisher Sociedad Chilena de Química
publishDate 2003
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072003000300001
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AT dewulfjo determinationofthehenrysconstantofvolatileandsemivolatileorganiccomponudsofenvironmentalconcernbythebasbatchairstrippingtechniqueanewmathematicalapproach
AT langenhovehermanvan determinationofthehenrysconstantofvolatileandsemivolatileorganiccomponudsofenvironmentalconcernbythebasbatchairstrippingtechniqueanewmathematicalapproach
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