| Title: | Study of the VOC emissions from a municipal solid waste storage pilot-scale cell: comparison with biogases from municipal waste landfill site |
| Author(s): | Chiriac R; De Araujos Morais J; Carre J; Bayard R; Chovelon JM; Gourdon R; |
| Address: | "Universite de Lyon, Universite Lyon 1, CNRS, UMR 5615, Laboratoire des Multimateriaux et Interfaces, 43 boulevard du 11 Novembre 1918, F-69622 Villeurbanne, France. rodica.chiriac@univ-lyon1.fr" |
| DOI: | 10.1016/j.wasman.2011.06.009 |
| ISSN/ISBN: | 1879-2456 (Electronic) 0956-053X (Linking) |
| Abstract: | "The emission of volatile organic compounds (VOCs) from municipal solid waste stored in a pilot-scale cell containing 6.4 tonnes of waste (storage facility which is left open during the first period (40 days) and then closed with recirculation of leachates during a second period (100 days)) was followed by dynamic sampling on activated carbon and analysed by GC-MS after solvent extraction. This was done in order to know the VOC emissions before the installation of a methanogenesis process for the entire waste mass. The results, expressed in reference to toluene, were exploited during the whole study on all the analyzable VOCs: alcohols, ketones and esters, alkanes, benzenic and cyclic compounds, chlorinated compounds, terpene, and organic sulphides. The results of this study on the pilot-scale cell are then compared with those concerning three biogases from a municipal waste landfill: biogas (1) coming from waste cells being filled or recently closed, biogas (2) from all the waste storage cells on site, and biogas (3) which is a residual gas from old storage cells without aspiration of the gas. The analysis of the results obtained revealed: (i) a high emission of VOCs, principally alcohols, ketones and esters during the acidogenesis; (ii) a decrease in the alkane content and an increase in the terpene content were observed in the VOCs emitted during the production of methane; (iii) the production of heavier alkanes and an increase in the average number of carbon atoms per molecule of alkane with the progression of the stabilisation/maturation process were also observed. Previous studies have concentrated almost on the analysis of biogases from landfills. Our research aimed at gaining a more complete understanding of the decomposition/degradation of municipal solid waste by measuring the VOCs emitted from the very start of the landfill process i.e. during the acidogenesis and acetogenesis phases" |
| Keywords: | Biofuels/*analysis Gas Chromatography-Mass Spectrometry Pilot Projects Refuse Disposal/instrumentation/*methods Soil Pollutants/*analysis/chemistry Temperature Time Factors Volatile Organic Compounds/*analysis/chemistry; |
| Notes: | "MedlineChiriac, R De Araujos Morais, J Carre, J Bayard, R Chovelon, J M Gourdon, R eng Evaluation Study 2011/07/23 Waste Manag. 2011 Nov; 31(11):2294-301. doi: 10.1016/j.wasman.2011.06.009. Epub 2011 Jul 22" |
