Cleaning and liquid contact with solids – Processes – Including use of vacuum – suction – or inert atmosphere
Patent
1991-03-26
1992-05-19
Morris, Theodore
Cleaning and liquid contact with solids
Processes
Including use of vacuum, suction, or inert atmosphere
210922, 405128, 405129, 423659, 423DIG20, 166248, 166268, 166272, 166306, B08B 500, B09B 300, E21B 4316, E21B 4324
Patent
active
051144972
ABSTRACT:
An improved process for the remediation of soil contaminated by the presence therein of organic or semi-volatile inorganic contaminants which comprises (1) supplying thermal energy to the soil at one or more locations under the surface of the soil, (2) collecting the vapors resulting from contaminant vaporization or decomposition under the influence of the thermal energy, after passage horizontally through the soil, at one or more locations under the surface of the soil and separating from the collected vapors the environmentally undesirable components thereof.
REFERENCES:
patent: 3972372 (1976-08-01), Fisher et al.
patent: 3989107 (1976-11-01), Fisher et al.
patent: 4984594 (1991-01-01), Vinegar et al.
David Rotman "Superfund Cleanup-The Burning Question", Industrial Chemist, Jan. 1988, 26-27.
Byers Dallas L.
Chou Charles C.
Colthart James D.
Deeley George M.
Johnson Paul C.
El-Arini Zeinab
Morris Theodore
Shell Oil Company
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