00000000nam 2200000zi 4500
0019.870710
003CaOODSP
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006m     o  d f      
007cr bn|||||||||
008190327s1991    onca    ob   f000 0 eng d
040 |aCaOODSP|beng|erda|cCaOODSP
041 |aeng|bfre
0861 |aEn13-5/91-70-1E-PDF
1001 |aLesage, Suzanne, |eauthor.
24510|aDegradation of chlorofluorocarbon-113 under anaerobic conditions / |cS. Lesage, S. Brown and K. Hosler.
264 1|aBurlington, Ontario : |bNational Water Research Institute = Institut national de recherche sur les eaux, |c[1991]
300 |a1 online resource (4 unnumbered pages, 15 pages, 10 unnumbered pages) : |billustrations.
336 |atext|btxt|2rdacontent
337 |acomputer|bc|2rdamedia
338 |aonline resource|bcr|2rdacarrier
4901 |aNWRI contribution ; |vno. 91-70A
500 |aDigitized edition from print [produced by Environment and Climate Change Canada].
504 |aIncludes bibliographical references (pages 14-15).
5203 |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.
546 |aIncludes management perspective and abstract in French.
69207|2gccst|aGroundwater
69207|2gccst|aPollutants
7001 |aBrown, S., |eauthor.
7001 |aHosler, K., |eauthor.
7101 |aCanada. |bEnvironment Canada.
7102 |aNational Water Research Institute (Canada). |bRivers Research Branch.
7102 |aNational Water Research Institute (Canada)
830#0|aNWRI contribution ;|vno. 91-70A.|w(CaOODSP)9.844121
85640|qPDF|s2.38 MB|uhttps://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-91-70-1-eng.pdf