Conference paper

Publication year: 2007

Pages: 16-23

Journal: Journal of Analytical and Applied Pyrolysis

Volume number: 79

Issue number: 1-2

ISSN: 0165-2370

eISSN: 1873-250X

DOI Link: https://doi.org/10.1016/j.jaap.2006.11.011

Conference: 17th International Symposium on Analytical and Applied Pyrolysis

Publisher: Elsevier

Abstract: 
The harmless removal of municipal solid waste (MSW) requires the biodegradation of organic matter to decrease the risk of gaseous emissions and leaching of contaminants. We studied the re-circulation of leachates from an aerobic treated MSW in a lysimeter and compared these results with a similar laboratory study using small-scale reactors. The reduction of total organic C and biological and chemical oxygen demands provided clear evidence for the biodegradation of organic matter in MSW after 12 months of leachate re-circulation. Curie-point pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) and pyrolysis-field ionization mass spectrometry (Py-FIMS) revealed that the biodegradation was more efficient in the large-scale lysimeter than in the laboratory reactors. Different from the laboratory experiments, carbohydrates and N-containing compounds were decomposed almost completely after 2 months. Furthermore, temperature-resolved Py-FIMS showed that leachate re-circulation led to a higher thermal stability of the residual, non-decomposed organic matter. In summary, the two analytical pyrolysis methods proved that the re-circulation of leachates through MSW promoted organic matter biodegradation and offers an improved aerobic waste treatment technology. (C) 2006 Elsevier B.V. All rights reserved.

Harvard Citation style: Franke, M., Jandl, G. and Leinweber, P. (2007) Analytical pyrolysis of re-circulated leachates: Towards an improved municipal waste treatment, Journal of Analytical and Applied Pyrolysis, 79(1-2), pp. 16-23. https://doi.org/10.1016/j.jaap.2006.11.011

APA Citation style: Franke, M., Jandl, G., & Leinweber, P. (2007). Analytical pyrolysis of re-circulated leachates: Towards an improved municipal waste treatment. Journal of Analytical and Applied Pyrolysis. 79(1-2), 16-23. https://doi.org/10.1016/j.jaap.2006.11.011