Method of treating refractory activated carbon by exposure to io

Details Method of treating refractory activated carbon by exposure to io Method of treating refractory activated carbon by exposure to io

1993-11-29

1995-05-09

Konopka, Paul E.

Hazardous or toxic waste destruction or containment

Containment

Solidification, vitrification, or cementation

502 5, 588212, B09B 300, B01J 1912, B01J 2034, B01J 3734

Patent

active

054142040

ABSTRACT:
The improved method of treating activated carbon having an organochlorine compound adsorbed thereon which comprises adding water to said activated carbon and then exposing said activated carbon to ionizing radiation, thereby decomposing and rendering harmless the organochlorine compound adsorbed on the activated carbon is described. The method is capable of safe and efficient decomposition of the activated carbon that has been used in adsorption treatment of organochlorine compounds such as PCBs and trichloroethylene that have heretofore been difficult to treat. The activated carbon that has hitherto simply been accumulated to date after adsorbing organochlorine compounds can be effectively treated by the method at low cost.

REFERENCES:
patent: 3846296 (1974-11-01), Hay
patent: 5087384 (1992-02-01), Ding
patent: 5087394 (1992-02-01), Ding
Peter Gehringer et al., "Radiation-induced Decomposition of Aqueous Trichloroethylene Solutions", pp. 1227-1231, Appl. Radict. Isot., vol. 12, 1988.

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