Method and Apparatus for Characterizing Coal Tar in Soil


The present invention provides a method and apparatus or system for determining an amount of coal tar that can enter, and subsequently be displaced from, a given type of soil for a range of depths of the soil. The method and apparatus also provide verification of the pressure at which coal tar can be displaced from a given type of soil. In particular, the method and apparatus simulate the hydrostatic pressure that a soil sample encounters in the subsurface of the ground. Accordingly, the method and apparatus provide a relationship between the concentration of coal tar in the soil and the pressure required to displace the coal tar from the soil, which allows for an estimation of the amount of coal tar that may be displaced at a particular location or site. Further, the method and apparatus are adaptable for use in the laboratory or the field.

Lehigh Tech ID# 012704-01


  • Waste management
  • Coal tar measurements


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    App Type Country Serial No. Patent No. File Date Issued Date Expire Date
    Utility United States 10/766,497 7,393,689 1/27/2004 7/1/2008 10/4/2006
    Energy and Environment
    For Information, Contact:
    Rick Smith
    Lehigh University
    Derick Brown
    Horace Moo-Young
    Soil Treatment