OLS : Record

RECORD NUMBER: 46 OF 96

Main Title Method of Estimating the Travel Time of Noninteracting Solutes through Compacted Soil Material.
Author Horton, R.; Thompson, M. L.; McBride, J. F.;
CORP Author Iowa State Univ., Ames. Dept. of Agronomy.;Environmental Protection Agency, Cincinnati, OH. Hazardous Waste Engineering Research Lab.
Year Published 1987
Report Number EPA-R-811093; EPA/600/J-87/152;
Stock Number PB88-153879
Subjects Clay soils; Soil compacting; Solutes; Water pollution; Mathematical models; Travel time; Hydraulic conductivity; Estimates; Porosity; Permeability; Density(Mass/volume); Earth fills; Fluid flow; Measurement; Comparison; Porosimeters; Reprints;
Holdings
Library   Call Number Additional Info Location Date Modified
NTIS PB88-153879 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/21/1988
Collation 9p
Abstract The pollutant travel time through compacted soil material (i.e., when a pollutant introduced at the top first appears at the bottom) cannot be accurately predicted from the permeability (saturated hydraulic conductivity) alone. The travel time is also dependent on the effective porosity of the material; i.e., the portion of the total porosity that contributes significantly to fluid flow. Pollutant travel time is directly proportional to effective porosity and thickness of a compacted layer and inversely proportional to permeability and hydraulic gradient. The total porosity is calculated from measurements of bulk and particle density. Pore size distribution information is obtained from the cumulative porosity curve of the sample as measured by mercury-intrusion porosimeter. The paper also compares measured and predicted solute breakthrough times for three compacted soil materials.
Supplementary Notes Pub. in Soil Science Society of America Jnl., v51 n1 p48-53 Jan/Feb 87. Sponsored by Environmental Protection Agency, Cincinnati, OH. Hazardous Waste Engineering Research Lab.
NTIS Title Notes Journal article.
Title Annotations Reprint: Method of Estimating the Travel Time of Noninteracting Solutes through Compacted Soil Material.
PUB Date Free Form c1987
Category Codes 68D; 50D
NTIS Prices PC A02/MF A01
Primary Description 600/12
Document Type NT
Control Number 808422603
Cataloging Source NTIS/MT
Origin NTIS
Type CAT