Main Title |
Two-Dimensional Modeling of Aquifer Remediation Influenced by Sorption Nonequilibrium and Hydraulic Conductivity Heterogeneity. |
Author |
Rabideau, A. J. ;
Miller, C. T. ;
|
CORP Author |
State Univ. of New York at Buffalo. Dept. of Civil Engineering. ;North Carolina Univ. at Chapel Hill. Dept. of Environmental Sciences and Engineering.;Robert S. Kerr Environmental Research Lab., Ada, OK. |
Publisher |
c1994 |
Year Published |
1994 |
Report Number |
EPA-R-818647; EPA/600/J-94/303; |
Stock Number |
PB94-189693 |
Additional Subjects |
Computerized simulation ;
Aquifers ;
Remedial action ;
Water pollution control ;
Hydraulic conductivity ;
Alternatives ;
Performance evaluation ;
Sorption ;
Finite element analysis ;
Two-dimensional calculations ;
Feasibility studies ;
Heterogeneity ;
Reprints ;
Pump and treat systems ;
Cleanup operations
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB94-189693 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
15p |
Abstract |
A computational model was developed to simulate aquifer remediation by pump and treat for a confined, perfectly stratified aquifer. A split-operator finite element numerical technique was utilized to incorporate flow field heterogeneity and nonequilibrium sorption into a two-dimensional, radially symmetric advective-dispersive transport model. Simulations reproduced the tailing behavior commonly observed at remedial sites. Predicted remediation times were observed to increase as the degree of hydraulic conductivity heterogeneity and/or sorption nonequilibrium increased. Dimensional analysis was used to facilitate the general application of simulation results to a range of aquifer/contaminant systems. The effects of sorption nonlinearity, sorption capacity heterogeneity, and intermittent pumping were also analyzed. (Copyright (c) 1994 by the American Geophysical Union.) |