Articles | Volume 21, issue 3
Research article
08 Mar 2017
Research article |  | 08 Mar 2017

Experimental study on retardation of a heavy NAPL vapor in partially saturated porous media

Simon Matthias Kleinknecht, Holger Class, and Jürgen Braun

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Cited articles

Barber, C. and Davis, G. B.: Fugacity model to assess the importance of factors controlling the movement of volatile organics from soil to ground water, in: Proceedings of a Workshop on Modelling the Fate of Chemicals in the Environment, The Australian National University, Centre for Resource and Environmental Studies, Water Research Foundation of Australia, Canberra, ACT, 67–73, 1991.
Bird, R. B., Stewart, W. E., and Lightfoot, E. N.: Transport phenomena, Wiley, New York, 1960.
Brusseau, M. L., Popovičová, J., and Silva, J. A. K.: Characterizing gas-water interfacial and bulk-water partitioning for gas-phase transport of organic contaminants in unsaturated porous media, Environ. Sci. Technol., 31, 1645–1649,, 1997.
Brusseau, M. L., Peng, S., Schnaar, G., and Costanza-Robinson, M. S.: Relationships among air-water interfacial area, capillary pressure, and water saturation for a sandy porous medium, Water Resour. Res., 42, w03501,, 2006.
Brusseau, M. L., Carroll, K. C., Truex, M. J., and Becker, D. J.: Characterization and Remediation of Chlorinated Volatile Organic Contaminants in the Vadose Zone, Vadose Zone J., 12,, 2013.
Short summary
Retardation of migrating contaminant vapors in the subsurface may mitigate groundwater contamination or vapor intrusion into buildings. An experimental investigation was conducted to quantify the retardation of carbon disulfide (CS2) vapor in moist porous media based on the analysis of concentration breakthrough curves. Findings linked retardation to types of porous media and water saturation. Moreover, the first evidence of biodegradation of the CS2 vapor was found in the column experiments.