Modelling of biogas extraction at an Italian landfill accepting mechanically and biologically treated municipal solid waste
| Autor: | Sirio Orsi, Paolo S. Calabrò, Emiliano Gentili, Meoni Carlo |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Environmental Engineering
Municipal solid waste 010504 meteorology & atmospheric sciences Waste management Extraction (chemistry) Environmental engineering Conservation of Energy Resources Mechanical biological treatment Waste collection Models Theoretical 010501 environmental sciences 01 natural sciences Pollution Methane Refuse Disposal chemistry.chemical_compound Waste treatment Landfill gas Italy Biogas chemistry Biofuels Environmental science 0105 earth and related environmental sciences |
| Zdroj: | Waste Management & Research: The Journal for a Sustainable Circular Economy. 29:1277-1285 |
| ISSN: | 1096-3669 0734-242X |
| DOI: | 10.1177/0734242x11417487 |
| Popis: | This paper presents the results of the modelling of the biogas extraction in a full-scale Italian landfill by the USEPA LandGEM model and the Andreottola–Cossu approach. The landfill chosen for this research (‘Il Fossetto’ plant, Monsummano Terme, Italy) had accepted mixed municipal raw waste for about 15 years. In the year 2003 a mechanical biological treatment (MBT) was implemented and starting from the end of the year 2006, the recirculation in the landfill of the concentrated leachate coming from the internal membrane leachate treatment plant was put into practice. The USEPA LandGEM model and the Andreottola–Cossu approach were chosen since they require only input data routinely acquired during landfill management (waste amount and composition) and allow a simplified calibration, therefore they are potentially useful for practical purposes such as landfill gas management. The results given by the models are compared with measured data and analysed in order to verify the impact of MBT on biogas production; moreover, the possible effects of the recirculation of the concentrated leachate are discussed. The results clearly show how both models can adequately fit measured data even after MBT implementation. Model performance was significantly reduced for the period after the beginning of recirculation of concentrated leachate when the probable inhibition of methane production, due to the competition between methanogens and sulfate-reducing bacteria, significantly influenced the biogas production and composition. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|