Degradation of chlorofluorocarbon-113 under anaerobic conditions / S. Lesage, S. Brown and K. Hosler. : En13-5/91-70-1E-PDF
"A series of microcosms were set up to verify the degradation pathway of CFC-113 in water under anaerobic conditions and to measure its half-life and that of its major degradation products HCFC-123a and chlorotrifluoroethene (CTFE). Anaerobic landfill leachate was used as a source of bacteria acclimated to chlorinated solvents. The rate of reaction in methanogenic leachate was also compared to that obtained in a buffer containing reduced hematin. In methanogenic landfill leachate, CFC-113 was transformed to HCFC-123a with a half-life of 5 days at 20°C. The same reaction occurred in sodium sulfide/cysteine buffers containing hematin, but at a much slower rate. The production of CTFE was independent of the presence of HCFC-123a and occurred abiotically. Under methanogenic conditions, HCFC-123a was found to be further dechlorinated to HCFC-133 and HCFC-133b. CTFE was found to be relatively stable in methanogenic landfill leachate but was decomposed rapidly in a buffer containing sulfide"--Abstract.
Lien permanent pour cette publication :
publications.gc.ca/pub?id=9.870710&sl=1
| Ministère/Organisme | Canada. Environment Canada. National Water Research Institute (Canada). Rivers Research Branch. National Water Research Institute (Canada) |
|---|---|
| Titre | Degradation of chlorofluorocarbon-113 under anaerobic conditions / S. Lesage, S. Brown and K. Hosler. |
| Titre de la série | NWRI contribution ; no. 91-70A |
| Type de publication | Série - Voir l'enregistrement principal |
| Langue | [Anglais] |
| Format | Électronique |
| Document électronique | |
| Note(s) | Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references (pages 14-15). Includes management perspective and abstract in French. |
| Information sur la publication | Burlington, Ontario : National Water Research Institute = Institut national de recherche sur les eaux, [1991] |
| Auteur / Contributeur | Lesage, Suzanne, author. Brown, S., author. Hosler, K., author. |
| Description | 1 online resource (4 unnumbered pages, 15 pages, 10 unnumbered pages) : illustrations. |
| Numéro de catalogue |
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| Descripteurs | Groundwater Pollutants |
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