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Biodegradation of volatile CFCs, H-CFCs and VC in compost and marl
Citation Link: https://doi.org/10.15480/882.1551
Publikationstyp
Journal Article
Publikationsdatum
1998
Sprache
English
Author
Enthalten in
Volume
16
Issue
4
Start Page
330
End Page
341
Citation
Waste Management & Research 4 (16): 330-341 (1998)
Publisher DOI
Publisher
Sage Publ.
The biodegradation of volatile fully chlorofluonnated hydro carbons (CFCs), partly chlorofluorinated hydrocarbons (H CFCs) and vinyl chloride (VC) were investigated in compost and marl in laboratory studies. Trichlorofluoromethane (R11), dichlorodifluoromethane (R12), 1,1,2-trichlorotriflu oroethane (R113), difluoromethane (R32) and VC were bio degradable in compost under anaerobic conditions, probably by methanogenic bacteria. The anaerobic decomposition products of R11 were dichlorofluoromethane (R21 ) and chlo rofluoromethane (R31). The degradation product of R12 was chlorodifluoromethane (R22). R11 and its degradation prod ucts have the inhibiting effects of the R12 degradation under anaerobic conditions. The partly halogenated hydrocarbon R22 and VC were degraded preferentially under aerobic con ditions in marl, probably by methanotrophic bacteria. Under aerobic conditions R22 and VC have inhibited the biodegra dation of methane by methanotrophic bacteria.
Schlagworte
CFCs
H-CFCs
trichlorofluoromethane
R11
dichlorofluoromethane
R21
chlorofluoromethane
R31
difluoromethane
R32
chlorodifluoromethane
R22
vinyl chloride
VC
trichlorotrifluoroethane
R113
anaerobic and aerobic biodegradation
compost
marl
landfill
landfill gas
LFG
cometabolism
inhibition competitive inhibition
methanogenic bacteria
methanotrophic bacteria
DDC Class
620: Ingenieurwissenschaften
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