Science Inventory

METHOD OF ESTIMATING THE TRAVEL TIME OF NONINTERACTING SOLUTES THROUGH COMPACTED SOIL MATERIAL

Citation:

Horton, R., M. Thompson, AND J. McBride. METHOD OF ESTIMATING THE TRAVEL TIME OF NONINTERACTING SOLUTES THROUGH COMPACTED SOIL MATERIAL. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/J-87/152 (NTIS PB88153879), 1987.

Description:

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.

URLs/Downloads:

METHOD OF ESTIMATING THE TRAVEL TIME OF NONINTERACTING SOLUTES THROUGH COMPACTED SOIL MATERIAL

Record Details:

Record Type: DOCUMENT (REPORT)
Product Published Date: 12/31/1987
Record Last Revised: 12/22/2005
Record ID: 46366

Organization:

U.S. ENVIRONMENTAL PROTECTION AGENCY

OFFICE OF RESEARCH AND DEVELOPMENT