Soil vapor extraction of chlorinated solvents at an industrial site in Brazil.
J Hazard Mater
; 110(1-3): 119-27, 2004 Jul 05.
Article
em En
| MEDLINE
| ID: mdl-15177733
This study presents the design, monitoring and remediation strategy for a soil vapor extraction (SVE) system installed at an industrial site contaminated with a mixture of organic compounds, in particular 1,2 dichloroethane, carbon tetrachloride and chloroform. The unsaturated zone at the site is very deep and presents near ideal conditions for SVE, with the contaminated portion of the porous media characterized by alluvial deposits of a well graded sand followed by a capillary barrier at 28m of depth, which limited DNAPL downward migration. The soil cleanup time and the optimal removal rates of mass, considering different values of vacuum/discharge applied in the SVE system, have been estimated through the use of numerical sensitivity analysis. Results of the pilot-scale testing activities allowed for the calibration of flow and contaminated mass transport models and the determination, in a preliminary phase, of the infiltrated mass of different compounds.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Poluentes do Solo
/
Solventes
/
Hidrocarbonetos Clorados
/
Resíduos Industriais
Tipo de estudo:
Evaluation_studies
País/Região como assunto:
America do sul
/
Brasil
Idioma:
En
Revista:
J Hazard Mater
Assunto da revista:
SAUDE AMBIENTAL
Ano de publicação:
2004
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Holanda