Abstract
Soil-venting or vacuum extraction is an effective tool for remediation of soils contaminated with volatile compounds. Brusseau’s [Water Resour. Res. 27(12), 3189–3199, 1991] model of fate and transport of volatile compounds in the gaseous phase of dual-porosity soils with rate-limited sorption is adopted in this study. Using temporal moment analysis, expressions for effective velocity and dispersion are derived. The values of effective transport properties are presented for a set of volatile compounds for two typical soils. Sensitivity of these effective parameters to Peclet and Damkohler numbers is discussed.
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