000
| 02690cam 2200397zi 4500 |
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001 | 9.870710 |
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003 | CaOODSP |
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005 | 20221107163208 |
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006 | m o d f |
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007 | cr bn||||||||| |
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008 | 190327s1991 onca ob f000 0 eng d |
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040 | |aCaOODSP|beng|erda|cCaOODSP |
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041 | |aeng|bfre |
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086 | 1 |aEn13-5/91-70-1E-PDF |
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100 | 1 |aLesage, Suzanne, |eauthor. |
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245 | 10|aDegradation of chlorofluorocarbon-113 under anaerobic conditions / |cS. Lesage, S. Brown and K. Hosler. |
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264 | 1|aBurlington, Ontario : |bNational Water Research Institute = Institut national de recherche sur les eaux, |c[1991] |
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300 | |a1 online resource (4 unnumbered pages, 15 pages, 10 unnumbered pages) : |billustrations. |
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336 | |atext|btxt|2rdacontent |
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337 | |acomputer|bc|2rdamedia |
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338 | |aonline resource|bcr|2rdacarrier |
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490 | 1 |aNWRI contribution ; |vno. 91-70A |
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500 | |aDigitized edition from print [produced by Environment and Climate Change Canada]. |
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504 | |aIncludes bibliographical references (pages 14-15). |
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520 | 3 |a"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. |
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546 | |aIncludes management perspective and abstract in French. |
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692 | 07|2gccst|aGroundwater |
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692 | 07|2gccst|aPollutants |
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700 | 1 |aBrown, S., |eauthor. |
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700 | 1 |aHosler, K., |eauthor. |
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710 | 1 |aCanada. |bEnvironment Canada. |
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710 | 2 |aNational Water Research Institute (Canada). |bRivers Research Branch. |
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710 | 2 |aNational Water Research Institute (Canada) |
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830 | #0|aNWRI contribution ;|vno. 91-70A.|w(CaOODSP)9.844121 |
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856 | 40|qPDF|s2.38 MB|uhttps://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-91-70-1-eng.pdf |
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