Hazardous or toxic waste destruction or containment – Processes for making harmful chemical substances harmless,... – By reacting with chemical agents
Reexamination Certificate
2006-01-10
2006-01-10
Silverman, Stanley S. (Department: 1754)
Hazardous or toxic waste destruction or containment
Processes for making harmful chemical substances harmless,...
By reacting with chemical agents
C422S127000, C422S198000, C588S406000, C588S900000
Reexamination Certificate
active
06984767
ABSTRACT:
The invention consists of a method for treating polychlorinated biphenyl (PCB) contaminated media by: a) combining the media with a fluid containing one or more liquid hydrocarbons to form a media/fluid mixture; b) sonicating the mixture at audio frequency to extract PCB from the media into the fluid; and c) treating the fluid with sodium-containing alkali metal. The method may include additional steps to reduce the size of the media. Alternatively, the fluid can be decanted from the media after sonication and treated separately with sodium-containing alkali metal.
REFERENCES:
patent: 4151067 (1979-04-01), Grow
patent: 4941134 (1990-07-01), Nyberg et al.
patent: 5005773 (1991-04-01), Nyberg et al.
patent: 5228921 (1993-07-01), Peterson
patent: 5318228 (1994-06-01), Macas
patent: 5376182 (1994-12-01), Everett et al.
patent: 5690811 (1997-11-01), Davis et al.
patent: 6049021 (2000-04-01), Getman et al.
patent: 6061383 (2000-05-01), Katayama
patent: 2003/0036672 (2003-02-01), Gonzalez et al.
patent: 2002-66498 (2002-03-01), None
patent: WO 97/14765 (1997-04-01), None
patent: WO 02/22252 (2002-03-01), None
Full English Translation of JP 2002-66498, published Mar. 5, 2002.
D. Krefting, et al. “High-speed observation of acoustic cavitation erosion in multibubble systems”, Ultrasonics Sonochemistry, vol. 11, 2004, pp. 119-123.
Hunt Lorrie
McElroy Rod
McKinley Jim
Hertzog Ardith E
Silverman Stanley S.
Sonic Environmental Solutions Inc.
Vermette Clifford W.
Vermette & Co.
LandOfFree
Sonication treatment of polychlorinated biphenyl... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Sonication treatment of polychlorinated biphenyl..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sonication treatment of polychlorinated biphenyl... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3602754