Testing anaerobic biodegradability of polymers in a laboratory-scale simulated landfill
Article Abstract:
A laboratory scale system that closely simulates decomposition in landfills was developed to measure anaerobic biodegradability of a C-labeled test polymer under conditions representing the refuse matrix. The system was found to be useful for biodegradation measurement, where the biodegradability of a citric acid cross-linked cellulose, a newly developed material, can be compared with that of pure cellulose and greater than that of a lignified cellulose. These forms of cellulose are usually buried in landfills.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1998
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Changes in the enantiometric ratio of (R)- to (S)-mecoprop indicate in situ biodegradation of this chiral herbicide in a polluted aquifer
Article Abstract:
Enantioselective microbial degradation enhances the enantiomeric ratio of (R)- to (S)-mecoprop during landfill leachate's passage in groundwater. Leachate samples taken from a waste disposal site in Switzerland revealed equal concentrations of (R)- and (S)-mecoprop. Such concentrations suggest that in the receiving groundwater, a racemix mixture of mecoprop leached. On the other hand, groundwater samples downstream of the landfill revealed a marked excess of (R)-mecoprop.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1998
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Biodegradability of municipal solid waste components in laboratory-scale landfills
Article Abstract:
Methane yields, cellulose and hemicellulose decomposition and leachate toxicity were measured to characterize the major biodegradable components of municipal refuse. A general trend observed was that methane yield increased as the cellulose and hemicellulose content increased. The degree of lignification of a component was likewise not a good predictor of biodegradation. Except for food waste, leachate from the decomposition of refuse components was not toxic.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1997
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