G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 25/18 (2006.01) B01D 57/00 (2006.01) B09C 1/06 (2006.01) G01N 33/24 (2006.01)
Patent
CA 2104522
ABSTRACT OF THE DISCLOSURE A bench scale process and apparatus for deter- mining the operating parameters, such as maximum tempera- ture and residence time, required to remove a particular contaminant at a particular depth during a full-scale thermal desorption process, includes measuring a tempera- ture of a representative contaminated soil sample at a particular depth as a function of residence time during a bench scale thermal desorption process. The method also includes measuring the contaminant level of the soil sample after the bench scale process to determine the required temperatures and residence times to substantially remove the contaminants from the soil. The apparatus includes a container for housing the soil sample, at least one partition positioned between adjacent layers of the soil sample and at least one thermocouple positioned within each layer of the soil sample. In determining the operating parameters, the heat flux, absorptivity, thermal diffusivity and thermal conductivity may be determined during the bench scale process and utilized to predict the operating parameters of the full scale process.
Bereskin & Parr
Westinghouse Electric Corporation
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