Priddle's present address is Department of Civil Engineering, University of New Brunswick, P.O. Box 4400, Fredericton, New Brunswick, Canada E3B 5A3.
Laboratory Column Measurement of VOC Retardation Factors and Comparison with Field Values
Article first published online: 4 AUG 2005
Volume 29, Issue 2, pages 260–266, March 1991
How to Cite
Priddle, M. W. and Jackson, R. E. (1991), Laboratory Column Measurement of VOC Retardation Factors and Comparison with Field Values. Groundwater, 29: 260–266. doi: 10.1111/j.1745-6584.1991.tb00518.x
Discussion open until September 1, 1991.
- Issue published online: 4 AUG 2005
- Article first published online: 4 AUG 2005
- Received December 1989, revised April and July 1990, accepted August 1990.
A laboratory column technique was developed to measure retardation factors (Rf) of volatile organic compounds (VOC) using geological material obtained from an outwash aquifer. The site is a former solvent disposal pit near Ottawa, Canada. The experimental column was designed as a closed system from introduction of the sample to the collection and analysis of effluent samples to prevent loss through volatilization of the VOCs. The retardation of the volatile compounds 1,4-dioxane, tetrahydrofuran, diethyl ether, 1,2-dichloroethane, chloroform, 1,1-dichloroethene, and benzene was measured. The centers of mass of both the contaminant and conservative tracer breakthrough curves were compared to determine Rf. The measured Rf values ranged from 1.1 (1,4-dioxane) to 14.3 (benzene) compared with values of 1.6 and 8.8 derived from contaminant plume lengths. Considering the uncertainty of the disposal history at the site, the values are of reasonable agreement in comparison.