Transient diffusion, adsorption, and emission of volatile organic vapors in soils with fluctuating low water contents

L. W. Petersen*, Y. H. El-Farhan, P. Moldrup, D. E. Rolston, T. Yamaguchi

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

54 Citations (Scopus)

Abstract

Laboratory experiments were conducted on large packed soil columns under unsaturated conditions. Trichloroethene (TCE) was introduced at the bottom of the columns. The emissions of TCE from the soil surface was monitored. The retardation of VOC gas transport was determined by sampling the soil-air and the sweep air flushing the column headspace. The transport of VOC gases from experiment initiation until steady-state was simulated using a numerical simulation model. Overall, measured and simulated concentration profiles as well as volatilization fluxes agreed very well.

Original languageEnglish
JournalJournal of Environmental Quality
Volume25
Issue number5
Pages (from-to)1054-1063
ISSN0047-2425
DOIs
Publication statusPublished - 1996

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