||Review and evaluation of the influence of chemicals on the conductivity of soil clays /
Brown, Kenneth Warren,
||Texas Agricultural Experiment Station, College Station.;Environmental Protection Agency, Cincinnati, OH. Hazardous Waste Engineering Research Lab.
|| Hazardous Waste Engineering Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,
||EPA/600-2-88-016; EPA-R-808824; EPA-R-811663
Soil pollution. ;
Organic compounds ;
Hydraulic conductivity ;
Clay soils ;
Soil compacting ;
Field tests ;
Waste disposal ;
Earth fills ;
||Region 3 Library/Philadelphia, PA
||Region 4 Library/Atlanta,GA
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||202 pages ; 28 cm
A study was undertaken to ascertain the effects of organic solvents on compacted soils. Laboratory measurements showed that clay initially dispersed in water will flocculate as the concentration of organic increases. The hydraulic conductivity typically increased two or three orders of magnitude at concentrations above which the clay flocculated. Laboratory conductivity measurements indicated that elevated gradients caused a significant decrease in conductivity when the permeant was water. No significant changes were found however with organic liquids. The average conductivity of three commercial clays to xylene was significantly greater than corresponding conductivities to water. In addition, the conductivities of two of the three commercial clays to both gasoline and kerosene were also significantly increased. Conductivities measured in the field test cells confirmed the results obtained in the laboratory. All three soils exhibited increased conductivity when exposed to xylene. When exposed to acetone, the soils underwent an initial decrease in conductivity.
"February 1988." "EPA/600-2-88-016."