Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.22/3035
Título: Estimation of pollutant partition in sandy soils with different water contents
Autor: Albergaria, José Tomás
Alvim-Ferraz, Maria da Conceição M.
Delerue-Matos, Cristina
Palavras-chave: Soil pollution
Unsaturated soils
Volatile organic chemicals
Pollutant distribution
Soil water
Data: 2010
Editora: Springer
Relatório da Série N.º: Environmental Monitoring and Assessment; Vol. 171, Issue 1-4
Resumo: The objectives of this work were: (1) to identify an isotherm model to relate the contaminant contents in the gas phase with those in the solid and non-aqueous liquid phases; (2) to develop a methodology for the estimation of the contaminant distribution in the different phases of the soil; and (3) to evaluate the influence of soil water content on the contaminant distribution in soil. For sandy soils with negligible contents of clay and natural organic matter, contaminated with benzene, toluene, ethylbenzene, xylene, trichloroethylene (TCE), and perchloroethylene (PCE), it was concluded that: (1) Freundlich’s model showed to be adequate to relate the contaminant contents in the gas phase with those in the solid and non-aqueous liquid phases; (2) the distribution of the contaminants in the different phases present in the soil could be estimated with differences lower than 10% for 83% of the cases; and (3) an increase of the soil water content led to a decrease of the amount of contaminant in the solid and non-aqueous liquid phases, increasing the amount in the other phases.
Peer review: yes
URI: http://hdl.handle.net/10400.22/3035
ISSN: 0167-6369
Versão do Editor: http://link.springer.com/article/10.1007%2Fs10661-009-1269-y
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