Grantee Research Project Results
1998 Progress Report: Dissolution Kinetics of Single and Multicomponent NAPL Pools in Saturated Three-dimensional Porous Media
EPA Grant Number: R823579Title: Dissolution Kinetics of Single and Multicomponent NAPL Pools in Saturated Three-dimensional Porous Media
Investigators: Chrysikopoulos, Constantinos V.
Institution: University of California - Irvine
EPA Project Officer: Packard, Benjamin H
Project Period: September 1, 1995 through August 1, 1998
Project Period Covered by this Report: September 1, 1997 through August 1, 1998
Project Amount: $315,368
RFA: Exploratory Research - Chemistry and Physics of Water (1995) RFA Text | Recipients Lists
Research Category: Water , Land and Waste Management , Safer Chemicals
Objective:
The objective of this research is to study the dissolution of single and multicomponent nonaqueous phase liquid (NAPL) pools in homogeneous as well as stratified three-dimensional experimental aquifers.Progress Summary:
Significant advances in mathematical modeling as well as experimental procedures for the investigation of NAPL pool dissolution were achieved during the review period (September 1997 - August 1998). A three-dimensional semi-analytical model simulating contaminant transport resulting from multicomponent NAPL pool dissolution in homogeneous, saturated porous media was developed. A two-dimensional numerical model was also developed to investigate NAPL pool dissolution behavior in stratified and statistically anisotropic subsurface formations. In addition, mass transfer correlations applicable to NAPL pool dissolutions were formulated.Experimental advances include the successful completion of a single component DNAPL pool dissolution experiment. A new and improved bottom plate was designed and constructed for the formation of a well-defined circular DNAPL pool at the bottom of the experimental aquifer. The dissolution experiment was conducted using trichloroethylene (TCE) as the contaminant pool source and the experimental aquifer was packed with a uniform sand. Steady-state dissolved contaminant concentrations at specific downstream locations within the experimental aquifer were measured for various groundwater velocities. The experimental data collected are consistent with model predictions.
Future Activities:
Currently, a multicomponent DNAPL pool dissolution experiment is in progress. It is expected that this experiment will conclude shortly and the results will provide further insights into the dissolution kinetics of multicomponent NAPL pools.Journal Articles on this Report : 4 Displayed | Download in RIS Format
| Other project views: | All 22 publications | 9 publications in selected types | All 9 journal articles |
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Chrysikopoulos CV, Lee KY. Contaminant transport resulting from multicomponent nonaqueous phase liquid pool dissolution in three-dimensional subsurface formations. Journal of Contaminant Hydrology, May 1998;31(1-2):1-21. |
R823579 (1998) R823579 (Final) |
not available |
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Chrysikopoulos CV, Kim TJ. Local mass transfer correlations for nonaqueous phase liquid pool dissolution in saturated porous media. Transport in Porous Media 2000;38(1-2):167-187. |
R823579 (1998) R823579 (Final) |
not available |
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Harmon TC, Kim TJ, Dela Barre BK, Chrysikopoulos CV. Cosolvent-water displacement in one-dimensional soil column. Journal of Environmental Engineering-Asce 1999;125(1):87-91. |
R823579 (1998) R823579 (Final) |
not available |
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Lee KY, Chrysikopoulos CV. NAPL pool dissolution in stratified and anisotropic porous formations. Journal of Environmental Engineering-Asce 1998;124(9):851-862. |
R823579 (1998) R823579 (Final) |
not available |
Supplemental Keywords:
Scientific Discipline, Waste, Water, Remediation, Environmental Chemistry, Physics, Chemistry, Groundwater remediation, Engineering, Engineering, Chemistry, & Physics, subsurface, chemical transport modeling, aquifer remediation design, chemical kinetics, three dimensional porous media, groundwater contamination, plume dispersion modelsProgress and Final Reports:
Original AbstractThe perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoints of the principal investigator and may not represent the views and policies of ORD and EPA. Conclusions drawn by the principal investigators have not been reviewed by the Agency.