gamma.-Ray Destruction of Individual PCB Congeners in Neutral 2-propanol
Radiolysis offers an attractive method of degrading PCBs, and the dechlorination mechanism has been found to depend on the nature of the solvent system employed. The gamma -ray degradation of 25 PCB congeners, representative of Aroclor mixtures, was investigated in neutral 2-propanol using spent nuc...
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Published in | Environmental science & technology Vol. 28; no. 12; pp. 2191 - 2196 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
United States
American Chemical Society
01.11.1994
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Online Access | Get full text |
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Summary: | Radiolysis offers an attractive method of degrading PCBs, and the dechlorination mechanism has been found to depend on the nature of the solvent system employed. The gamma -ray degradation of 25 PCB congeners, representative of Aroclor mixtures, was investigated in neutral 2-propanol using spent nuclear fuel. Results indicated that, when the radiolytic degradation efficiency was plotted against the PCB chlorine number, a general increase in the degradation efficiency was observed as the number of Cl atoms increased. Those PCB compounds found to have the largest radiolytic degradation efficiencies for their respective homologs were para/meta-substituted only. Chlorine substitution in the ortho position decreased the degradation efficiency. |
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Bibliography: | ark:/67375/TPS-MFCQVLT1-L istex:3DC2C19BA3EA4E03CF8CC35844E74080E35E4E46 ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 ObjectType-Article-1 ObjectType-Feature-2 |
ISSN: | 0013-936X 1520-5851 |
DOI: | 10.1021/es00061a030 |