Process for gamma ray induced degradation of polychlorinated biphenyls
Abstract
The invention is a process for the in-situ destruction of polychlorinated biphenyl (PCB) compounds in transformer oils and transformers. These compounds are broken down selectively by irradiation of the object or mixture using spent nuclear fuel or any isotopic source of high energy gamma radiation. For example, the level of applied dose required to decompose 400 ppm of polychlorinated biphenyl in transformer oil to less than 50 ppm is 500 kilogray. Destruction of polychlorinated biphenyls to levels of less than 50 ppm renders the transformer oil or transformer non-PCB contaminated under current regulations. Therefore, this process can be used to treat PCB contaminated oil and equipment to minimize or eliminate the generation of PCB hazardous waste.
- Inventors:
-
- Idaho Falls, ID
- Shelley, ID
- Blackfoot, ID
- Issue Date:
- Research Org.:
- Idaho National Laboratory (INL), Idaho Falls, ID (United States)
- OSTI Identifier:
- 871806
- Patent Number(s):
- 5799257
- Assignee:
- Lockheed Martin Idaho Technologies Company (Idaho Falls, ID)
- Patent Classifications (CPCs):
-
A - HUMAN NECESSITIES A62 - LIFE-SAVING A62D - CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS
- DOE Contract Number:
- AC07-94ID13223
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- process; gamma; ray; induced; degradation; polychlorinated; biphenyls; in-situ; destruction; biphenyl; pcb; compounds; transformer; oils; transformers; broken; selectively; irradiation; mixture; spent; nuclear; fuel; isotopic; source; energy; radiation; example; level; applied; dose; required; decompose; 400; ppm; oil; 50; 500; kilogray; levels; renders; non-pcb; contaminated; current; regulations; treat; equipment; minimize; eliminate; generation; hazardous; waste; polychlorinated biphenyl; gamma ray; hazardous waste; nuclear fuel; spent nuclear; gamma radiation; polychlorinated biphenyls; transformer oil; energy gamma; in-situ destruction; induced degradation; situ destruction; /588/204/
Citation Formats
Meikrantz, David H, Mincher, Bruce J, and Arbon, Rodney E. Process for gamma ray induced degradation of polychlorinated biphenyls. United States: N. p., 1998.
Web.
Meikrantz, David H, Mincher, Bruce J, & Arbon, Rodney E. Process for gamma ray induced degradation of polychlorinated biphenyls. United States.
Meikrantz, David H, Mincher, Bruce J, and Arbon, Rodney E. Thu .
"Process for gamma ray induced degradation of polychlorinated biphenyls". United States. https://www.osti.gov/servlets/purl/871806.
@article{osti_871806,
title = {Process for gamma ray induced degradation of polychlorinated biphenyls},
author = {Meikrantz, David H and Mincher, Bruce J and Arbon, Rodney E},
abstractNote = {The invention is a process for the in-situ destruction of polychlorinated biphenyl (PCB) compounds in transformer oils and transformers. These compounds are broken down selectively by irradiation of the object or mixture using spent nuclear fuel or any isotopic source of high energy gamma radiation. For example, the level of applied dose required to decompose 400 ppm of polychlorinated biphenyl in transformer oil to less than 50 ppm is 500 kilogray. Destruction of polychlorinated biphenyls to levels of less than 50 ppm renders the transformer oil or transformer non-PCB contaminated under current regulations. Therefore, this process can be used to treat PCB contaminated oil and equipment to minimize or eliminate the generation of PCB hazardous waste.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 1998},
month = {Thu Jan 01 00:00:00 EST 1998}
}
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Works referenced in this record:
The Radiolytic-chain Dechlorination of Polychlorinated Biphenyls in Alkaline 2-Propanol Solutions
journal, August 1974
- Sawai, Takeshi; Shimokawa, Toshinari; Shinozaki, Yoshiharu
- Bulletin of the Chemical Society of Japan, Vol. 47, Issue 8
Evaluation of gamma radiation for degradation of a polychlorinated biphenyl in solution and on activated carbon
journal, August 1987
- Schweitzer, J. F.; Born, G. S.; Etzel, J. E.
- Journal of Radioanalytical and Nuclear Chemistry Letters, Vol. 118, Issue 5
Dechlorination of DDT in Solution by Ionizing Radiation
journal, July 1971
- Sherman, Warren V.; Evans, Rudolph; Nesyto, Edwin
- Nature, Vol. 232, Issue 5306