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RECORD NUMBER: 2 OF 23

OLS Field Name OLS Field Data
Main Title An experimental evaluation of two sharp front models for vadose zone non-aqueous phase liquid transport /
Author Illangasekare, T. ; Znidarcic, D. ; Walser, G. ; Weaver, J.
Other Authors
Author Title of a Work
Illangasekare, Tissa.
Znidaræciâc, Dobroslav.
Walser, Gabriele.
Weaver, James.
Znidar cic, Dobroslav.
CORP Author Colorado Univ. at Boulder. Dept. of Civil, Environmental, and Architectural Engineering.;Robert S. Kerr Environmental Research Lab., Ada, OK.
Publisher Robert S. Kerr Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,
Year Published 1994
Report Number EPA/600/R-94/197; EPA-R-816807
Stock Number PB95-178232
OCLC Number 32128542
Subjects Zone of aeration--Pollution--Computer simulation. ; Groundwater--Pollution--Computer simulation. ; Soil pollution--Computer simulation. ; Pollutants--Environmental aspects--Computer simulation.
Additional Subjects Water pollution monitoring ; Environmental transport ; Ground water ; Vadose water ; Computerized simulation ; Model studies ; Path of pollutants ; Soil water movement ; Multiphase flow ; Subsurface flow ; Hydraulic properties ; Capillary pressure ; Rainfall ; Porous media ; Hydrocarbons ; Experimental design ; Nonaqueous phase liquids
Internet Access
Description Access URL
http://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=20008PC5.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
EHBD  EPA/600/R-94/197 NHEERL/AED Library/Narragansett,RI 03/02/2007
EJAD  EPA 600/R-94-197 Region 3 Library/Philadelphia, PA 05/30/2012
EJBD ARCHIVE EPA 600-R-94-197 Headquarters Library/Washington,DC 02/17/2011
EJBD  EPA 600-R-94-197 Headquarters Library/Washington,DC 05/29/2014
EJDD  EPA/600/R-94/197 OASQA Library/Fort Meade,MD 05/12/1995
EKAM  EPA/600/R-94/197 Region 4 Library/Atlanta,GA 04/28/1995
EKCD  EPA/600/R-94/197 NHEERL/GED Library/Gulf Breeze,FL 10/30/2018
EMBD  EPA/600/R-94/197 GWERD Library/Ada,OK 04/28/1995
ESAD  EPA 600-R-94-197 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB95-178232 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 01/01/1988
Collation x, 185 pages : illustrations ; 28 cm
Abstract
Laboratory experiments have been conducted to test two such models developed by the authors. Fundamental transport parameters for the media were determined using a flow-pump system. One-dimensional spill simulations of a non-aqueous phase liquid were conducted in vertical soil columns. One of the models, which is similar to concept to the Green-Ampt type infiltration models, assumes sharp leading and trailing fronts. It deviates from the experimental results for long modeling times. The second model based on kinematic wave formulation and the method of characteristics approximates the gradual decline in saturation behind the front and simulates the spill behavior well. Based on these experimental evaluations, the suitability and limitations of these simple models are determined.
Notes
"The information in this document has been funded in part by the United States Environmental Protection Agency under CR-816807 to the University of Colorado at Boulder"--Page ii. "EPA/600/R-94/197." "November 1994."