C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
202/124, 71/51,
C09K 17/00 (2006.01) A01B 77/00 (2006.01) B01D 53/34 (2006.01) B01D 53/72 (2006.01) B09C 1/06 (2006.01) F23G 5/04 (2006.01)
Patent
CA 1314403
ABSTRACT OF THE DISCLOSURE A method and apparatus for on-site remedial soil restoration activity of a work site contaminated with volatile organic compounds. Soil is removed from the ground and hauled to an initial feed hopper whereat it is conveyed to an inlet end of a hollow rotating cylinder having plural flights therein for effecting a moving of the contaminated soil lengthwise of the rotating cylinder toward an outlet end. The soil is heated as it tumbles about in the cylinder and the volatile organic compounds (VOCs) are volatilized inside the rotating cylinder. The hot gases drawn from the cylinder are filtered for the purpose of removing dry soil fines. The soil exiting the outlet end of the cylinder is thence recirculated through the rotating cylinder and thereafter fed to a conveying mechanism, whereat the cleaned soil is delivered to a selected location. The cleaned soil is then placed into the ground. The hot gases are scrubbed to remove therefrom any organics, acids and phosgenes. The gases are there- after fed to a bed of activated carbon for the purpose of extracting the remaining volatile organic compounds (VOCs) therefrom and allowing the now clean air to escape into the atmosphere.
562574
Bell Brian M.
Gerken Steven L.
Isley John P.
Bell Brian M.
Borden Ladner Gervais Llp
Canonie Environmental Services Corp.
Gerken Steven L.
Isley John P.
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