Evaluation of Effective Parameters for Volatile Organic Compounds in Porous Media with Mobile Air Phase |
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Authors: | Rishi Parashar Rao S Govindaraju |
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Institution: | (1) School of Civil Engineering, Purdue University, West Lafayette, IN, 47906, U.S.A. |
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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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Keywords: | temporal moments effective parameters dual-porosity models |
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