Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Dispersion of Pollutants in Saturated Porous Media.
Author Tyag, Avdhesh K. ; Tod, David K. ;
CORP Author Arizona Univ., Tucson. Dept. of Hydrology and Water Resources.
Year Published 1971
Report Number OWRR-B-020-ARIZ; 03093,; B-020-ARIZ(2)
Stock Number PB-226 596
Additional Subjects Water pollution ; Aquifers ; Numerical analysis ; Dispersing ; Two dimensional flow ; Porous materials ; Darcys law ; Path of pollutants
Library Call Number Additional Info Location Last
NTIS  PB-226 596 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 17p
An analytic solution has been derived to predict the dispersion of pollutants in homogeneous, isotropic and saturated porous media. In order to define the dispersion phenomenon, the coefficients of longitudinal and transverse dispersion must be determined. Relationships for the two coefficients under specific boundary conditions are presented. Since the variables characterizing the properties of fluid, porous medium, and tracer influence the dispersion of a pollutant, two dimensionless parameters, namely, the inverse Schmidt number and the molecular Peclet number, were obtained. Using these parameters, the experimental data on longitudinal and transverse dispersion were compiled and analyzed over a wide range of the flow velocity, grain size, and molecular diffusion of tracer.