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The role of oxidation compounds in biofilm growth on polyethylene geomembrane barriers used in landfill

Authors
  • Pons, Carlota
  • Richaud, Emmanuel
  • Bouchez, Théodore
  • Mazeas, Laurent
  • Farcas, Fabienne
  • Fayolle, Bruno
Publication Date
Jan 01, 2012
Source
HAL-UPMC
Keywords
Language
English
License
Unknown
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Abstract

In a model study, polyethylene was preoxidized and incubated for a period of 7 months at 40C in two different municipal solid waste leachates. During the postexperimental analyses, specific attention was paid to the carbonyl species and carboxylic acid depletion during the environmental exposure because it is well known that carboxylic acids are believed to be a potential substrate for the development of microorganisms. The results showed that the carbonyl as well as the carboxylic acid depletion observed follows first-order kinetics. The biofilm formation was characterized using a suite of analytical techniques, and its formation was compared with the carboxylic acid and carbonyl depletion profile.

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