Impacts of environmental conditions on the sorption of volatile organic compounds onto tire powder.
J Hazard Mater
; 153(1-2): 157-63, 2008 May 01.
Article
em En
| MEDLINE
| ID: mdl-17889437
ABSTRACT
A series of batch tests were performed and the impacts of environmental conditions and phase change on the sorption of volatile organic compounds (VOCs) were investigated. Benzene, trichloroethylene, tetrachloroethylene, and ethylbenzene were selected as target VOCs. Sorption of VOCs onto tire powder was well demonstrated by a linear-partitioning model. Water-tire partition coefficients of VOCs (not tested in this study) could be estimated using a logarithmic relationship between observed water-tire partition coefficients and octanol-water partition coefficients of the VOCs tested. The target VOCs did not seem to compete with other VOCs significantly when sorbed onto the tire powder for the range of concentrations tested. The influence of environmental conditions, such as pH and ionic strength also did not seem to be significant. Water-tire partition coefficients of benzene, trichloroethylene, tetrachloroethylene, and ethylbenzene decreased as the sorbent dosage increased. However, they showed stable values when the sorbent dosage was greater than 10 g/L. Air-tire partition coefficient could be extrapolated from Henry's law constants and water-tire partition coefficient of VOCs.
Buscar no Google
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Borracha
/
Estirenos
/
Butadienos
/
Elastômeros
/
Poluentes Atmosféricos
/
Fuligem
/
Hidrocarbonetos
Idioma:
En
Ano de publicação:
2008
Tipo de documento:
Article