Abstract
ABSTRACT
Diffusion-controlled mobility of benzene and toluene in liquid-saturated soils containing an immobile nonaqueous phase liquid (NAPL) was investigated. Three soil types were examined at NAPL relative saturations of 0, 5, and 20%. An equilibrium model accounting for diffusion through and partitioning among liquid and solid phases was shown to accurately predict contaminant release. Diffusion through the NAPL at 20% NAPL relative saturation was shown to be the dominant diffusion pathway.
Key words:
NAPL; soil; benzene; toluene; dodecane; diffusion
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