| Main Title |
Simulation of DNAPL Distribution Resulting from Multiple Sources. |
| Author |
Fishman, M.;
Guarnaccia, J.;
Wood, L.;
Enfield, C.;
|
| CORP Author |
Dynamac Corp., Ada, OK. ;CIBA-GEIGY Corp., Toms River, NJ.;Robert S. Kerr Environmental Research Lab., Ada, OK. |
| Publisher |
2000 |
| Year Published |
2000 |
| Report Number |
EPA-68-C4-0031; EPA/600/A-01/103; |
| Stock Number |
PB2002-101511 |
| Subjects |
Ground water;
Contamination;
Simulation models;
Numerical simulators;
Porous media;
Fluid entrapment;
Saturation hysteresis;
Aquifers;
Dense non aqueous phase liquid(DNAPL);
NAPL
|
| Holdings |
| Library |
|
Call Number |
Additional Info |
Location |
Date Modified |
| NTIS |
|
PB2002-101511 |
Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. |
NTIS |
10/23/2002 |
|
| Collation |
12p |
| Abstract |
A three-dimensional and three-phase (water, NAPL and gas) numerical simulator, called NAPL, was employed to study the interaction between DNAPL (PCE) plumes in a variably saturated porous media. Several model verification tests have been performed, including a series of 2-D laboratory experiments involving the migration of PCE through a variably saturated, homogeneous sand. A comparison of the experimental data to the model results illustrates the effect and importance of fluid entrapment and saturation hysteresis. The NAPL model was used to simulate a 3-D multi point PCE source release within a contained test cell at the Groundwater Remediation Field Laboratory (GRFL) in Dover, Delaware. In this experiment, the migration of PCE in the unsaturated and saturated zones, under various infiltration scenarios, was simulated. The modeling of multiple injection points in a homogeneous aquifer shows that the ultimate distribution of PCE depends on the injection points in a homogeneous aquifer shows that the ultimate distribution of PCE release rates, and the depth to the water table. In general, an intermittent, slow, injection rate caused narrow, deeply penetrating DNAPL plumes. On the other hand, higher injection rates resulted in a wider horizontal distribution and more interaction between neighboring plumes, thus creating non-symmetric distributions and an increase in the flow rate and the depth of penetration. |
| Supplementary Notes |
Prepared in cooperation with CIBA-GEIGY Corp., Toms River, NJ. Sponsored by Robert S. Kerr Environmental Research Lab., Ada, OK. |
| Availability Notes |
Product reproduced from digital image. Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA. |
| Category Codes |
62B; 68C; 68D |
| NTIS Prices |
PC A03/MF A01 |
| Primary Description |
600/15 |
| Document Type |
NT |
| Control Number |
028900060 |
| Cataloging Source |
NTIS/MT |
| Origin |
NTIS |
| Type |
CAT |
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