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RECORD NUMBER: 49 OF 145

Main Title Evaluation of Sorption Models in the Simulation of Naphthalene Transport Through Saturated Soils.
Author Liu, K. H.; Enfield, C. G.; Mravik, S. C.;
CORP Author ManTech Environmental Technology, Inc., Ada, OK.;Robert S. Kerr Environmental Research Lab., Ada, OK.
Publisher c1991
Year Published 1991
Report Number EPA-68-C8-0025; EPA/600/J-91/257;
Stock Number PB92-113190
Subjects Water pollution; Naphthalene; Environmental transport; Sorption; Mathematical models; Porous media; Land pollution; Soil properties; Equilibrium; Kinetics; Organic matter; Ground water; Sediment-water interfaces; Boundary conditions; Reprints;
Holdings
Library   Call Number Additional Info Location Date Modified
NTIS PB92-113190 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 02/24/1992
Collation 10p
Abstract The transport of organic pollutants in ground water is determined by the physical, chemical, and biological processes occurring within the porous medium. To show the effect of sorption model selection, the one-dimensional transport of naphthalene in two saturated soils was simulated using numerical models, which included the processes of dispersion, advection and sorption. Three different models describing the sorption process: (1) a local equilibrium model,((2) a first-order kinetic sorption model, and (3) a two-site model were examined. In addition, the study considered two types of boundary conditions: constant concentration and constant flux boundary conditions. Simulations were made for data of naphthalene transport through a laboratory soil column packed with Lincoln or Eustis soil series. Numerical simulation results show that the selection of the sorption model had significant effects on the numerical solutions. The numerical solution obtained using either the local equilibrium model or the first-order kinetic sorption model described the experimental data very well from the Lincoln soil column. In contrast, the numerical solution obtained using the two-site model described the experimental data for the Eustis soil better than the equilibrium or kinetic model. Different boundary conditions had little influence on the numerical solutions.
Supplementary Notes Pub. in Ground Water, v29 n5 p685-692 Sep/Oct 91. Sponsored by Robert S. Kerr Environmental Research Lab., Ada, OK.
NTIS Title Notes Journal article.
Title Annotations Reprint: Evaluation of Sorption Models in the Simulation of Naphthalene Transport Through Saturated Soils.
Category Codes 68D; 68; 48E; 99F
NTIS Prices PC A02/MF A01
Primary Description 600/15
Document Type NT
Control Number 201026497
Cataloging Source NTIS/MT
Origin NTIS
Type CAT


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