alexa Influence of Ambient Pressure on the Evaporation of Vol
ISSN: 2375-4397

Journal of Pollution Effects & Control
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Research Article

Influence of Ambient Pressure on the Evaporation of Volatile Organic Pollutants (VOP) during Soil Decontamination: Case of the Trichloroethylene (TCE)

Samuel Ouoba*1, Salifou K. Ouiminga1, Justin Zaida1, Bruno Cousin2, Moussa Sougoti1, Jean Koulidiati1
1Laboratoire de Physique et de Chimie de l’Environnement, UFR-SEA, Université de Ouagadougou, 03 BP 7021 Ouaga 03, Burkina Faso
2Laboratoire de Mécanique et Génie Civil, CNRS, Université Montpellier 2, Place Eugène Bataillon, 34095 Montpellier cedex 5, France
Corresponding Author : Samuel Ouoba
Université de Ouagadougou, UFR-SEA/LPCE
03 BP 7021 Ouaga 03 Burkina Faso
Tel: (+226) 70 13 03 01 / (+226) 76 67 15 57
E-mail: [email protected]
Received June 23, 2014; Accepted July 25, 2014; Published July 28, 2014
Citation: Ouoba S, Ouiminga KS, Zaida J, Cousin B, Sougoti M, et al. (2014) Influence of Ambient Pressure on the Evaporation of Volatile Organic Pollutants (VOP) during Soil Decontamination: Case of the Trichloroethylene (TCE). J Pollut Eff Cont 2:111 doi: 10.4172/2375-4397.1000111
Copyright: © 2014 Ouoba S, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Abstract

This article presents the results on the volatilization of the volatile organic pollutants (VOP) during decontamination process from the soil. The choice of TCE as a volatile organic pollutant is explained by the fact that it is relatively highly soluble in water, compared to other compounds, which excludes any possibility of adsorption of its vapors on the walls of the experimental device during testing. Its saturation vapor pressure very high (≈7700 Pa at 20ºC and nearly 12,000 Pa at 30ºC) facilitates its monitoring using a pressure transducer relatively less accurate and less expensive. The results obtained on the evaporation of TCE show a linear dependence with the pressure. The coefficient of volatilization is 3.2 times greater for an atmospheric pressure of 90 kPa than for a pressure of 100 kPa. This coefficient would be multiplied by 20 when the pressure passes from 100 kPa to 10 kPa.

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