Main Title |
A model of virus transport in unsaturated soil. |
Author |
Yates, M. V. ;
Ouyang, Y.
|
Other Authors |
|
CORP Author |
Agricultural Research Service, Riverside, CA. Salinity Lab. ;California Univ., Riverside. Dept. of Soil and Environmental Sciences.;Robert S. Kerr Environmental Research Lab., Ada, OK. Processes and Systems Research Div. |
Year Published |
1992 |
Report Number |
EPA 600/2-91-062 |
Stock Number |
PB92-119957 |
OCLC Number |
26393652 |
Additional Subjects |
Viruses ;
Soil microorganisms ;
Land pollution ;
Environmental transport ;
Water pollution control ;
Mathematical models ;
Zone of aeration ;
Unsaturated flow ;
Path of pollutants ;
Porous media ;
Disinfection ;
Disease outbreaks ;
Ground water ;
Potable water ;
Water supply ;
Soil temperature ;
VIRTUS model
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Internet Access |
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Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
ELBD |
EPA 600-2-91-062 |
|
AWBERC Library/Cincinnati,OH |
12/18/1998 |
EMBD |
EPA/600/2-91/062 |
|
NRMRL/GWERD Library/Ada,OK |
12/24/1992 |
NTIS |
PB92-119957 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
ix, 137 p. |
Abstract |
As a result of the recently-proposed mandatory ground-water disinfection requirements to inactivate viruses in potable water supplies, there has been increasing interest in virus fate and transport in the subsurface. Several models have been developed to predict the fate of viruses in ground water, but few include transport in the unsaturated zone, and all require a constant virus inactivation rate. These are serious limitations in the models, as it has been shown that considerable virus removal occurs in the unsaturated zone, and inactivation rate of viruses is dependent on environmental conditions. The purpose of the research was to develop a predictive model of virus fate and transport in unsaturated soils that allows the virus inactivation rate to vary based on changes in soil temperature. The model was developed based on the law of mass conservation of a contaminant in porous media and couples the flow of water, viruses, and heat through the soil. Model predictions were compared to measured data of virus transport in laboratory column studies, and were within the 95% confidence limits of the measured concentrations. Model simulations were performed to identify variables that have a large effect on the results. |
Notes |
EPA/600/2-91/062. PB92-119957. December 1991. |