Process for the solvent extraction for the radiolysis and dehalogenation of halogenated organic compounds in soils, sludges, sediments and slurries

Patent · Tue Feb 13 00:00:00 EST 2007

OSTI ID:1176103

Golden, Jeffry

A process of extracting halogenated organic compounds, and particularly PCBs, from soil, sediment, slurry, sludge and dehalogenating the compounds contacts a contaminated soil sample with an extraction medium of a mixture of an alkane and a water miscible alcohol. The organic compounds dissolve in the extraction medium which is separated from the soil by passing water upwardly through the soil. The extraction medium floats to the surface of the water and is separated. Thereafter, the extraction medium containing the halogenated organic contaminants is subjected to ionizing radiation to radiolytically dehalogenate the compounds.

• Research Organization: Idaho National Laboratory (INL), Idaho Falls, ID (United States); Clean Earth Technologies, LLC, St. Louis, MO (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC07-94ID13223
• Assignee: Clean Earth Technologies, LLC (St. Louis, MO)
• Patent Number(s): 7,175,816
• Application Number: 10/386,181
• OSTI ID: 1176103
• Resource Relation: Patent File Date: 2003 Mar 11
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY