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Main Title Mathematical Model for the Fate of Hazardous Substances in Soil: Model Description and Experimental Results.
Author Short, T. E. ; Grenney, W. J. ; Caupp, C. L. ; Sims, R. C. ;
CORP Author Robert S. Kerr Environmental Research Lab., Ada, OK. ;Utah State Univ., Logan. Dept. of Civil and Environmental Engineering.
Year Published 1987
Report Number EPA/600/J-87/204;
Stock Number PB88-170527
Additional Subjects Degradation ; Hazardous materials ; Soils ; Mathematical models ; Volatilizing ; Desorption ; Sorption ; Aduection ; Aromatic polycyclic hydrocarbons ; Anthracene ; Fluorenes ; Naphthalene ; Water flow ; Soil properties ; Depth ; Computer programming ; Reprints ; Vadose zone ; Soil columns
Library Call Number Additional Info Location Last
NTIS  PB88-170527 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 19p
A mathematical model was developed and implemented for evaluating fate of a hazardous substance in the unsaturated zone of soil. The model simulates vadose processes of volatilization, degradation, sorption/desorption, advection, and dispersion. Four vadose zone physical phases are considered including water, oil, soil grains, and soil-pore air. The Vadose Zone Interactive Processes (VIP) model is appropriate for use at RCRA and CERCLA sites since site-specific processes affecting transport of hazardous chemicals through the vadose zone are incorporated in the model. A RCRA land treatment system was chosen as the basis of model development. Laboratory experiments were conducted to observe transport and apparent degradation of three polynuclear aromatic hydrocarbon (PAH) compounds (anthracene, fluoranthene, and naphthalene) in sandy loam soil in separate soil columns under two flow conditions. Vadose zone concentrations of PAH compounds were evaluated as function of time (90 days) and depth (1.5 m).