| Main Title |
Field-scale application of in-situ cosolvent flushing : evaluation approach / |
| Author |
Rao, P. S. C. ;
Annable, M. D. ;
Sillan, R. K. ;
Hatfield, K. ;
Graham, W. D.
|
| Other Authors |
|
| CORP Author |
National Risk Management Research Lab., Ada, OK. ;Florida Univ., Gainesville.;Strategic Environmental Research and Development Program, Arlington, VA. |
| Publisher |
U.S. Environmental Protection Agency, National Risk Management Laboratory, |
| Year Published |
1996 |
| Report Number |
EPA/600/A-98/035 |
| Stock Number |
PB98-135866 |
| Additional Subjects |
Water pollution control ;
Ground water ;
Nonaquoues solvents ;
Jet fuels ;
Remediation ;
Water treatment ;
Flushing ;
Ecological concentration ;
Extraction ;
Separation ;
Contaminants ;
Tracer studies ;
Aquifers ;
NAPL(Nonaqueous Phase Liquids) ;
Nonaqueous Phase Liquids ;
Hill Air Force Base ;
Ogden(Utah) ;
Davis County(Utah)
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB98-135866 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
12 pages : illustrations ; 28 cm. |
| Abstract |
The use of in-situ cosolvent flushing was evaluated at a field site located at Hill AFB, Utah. The experiment was conducted in a hydralically-isolated test cell (4.3 m x 3.4 m) constructed in a surficial sand-gravel-cobble aquifer, which was contaminated with a mixture of jet fuel and chlorinated solvents. A series of tests was conducted in the test cell to evaluate the effectiveness of cosolvent flushing using the following methods: (1) NAPL constituent concentrations measured by extraction and analysis of pre- and post-flushing soil core samples; (2) Cumulative mass of several target contaminants removed, as determined by analysis of the extraction well fluids; (3) Analysis of the data from pre- and post-flushing inter-well partitioning tracers tests; and (4) Pre- and post-flushing analysis of groundwater samples for target contaminant concentrations. The results obtained by the various methods agree, and indicate that > 90% mass of several target contaminants and > 75% of the total NAPL mass present in the test cell was removed as a result of the cosolvent flushing. |
| Notes |
Caption title. "Mar. 1991." Includes bibliographical references. "EPA/600/A-98/035." Microfiche. |
