Evaluation of methane emissions from Palermo municipal landfill: Comparison between field measurements and models
- Dipartimento di Ingegneria Civile, Ambientale e Aerospaziale, Universita di Palermo, Viale delle Scienze, 90128 Palermo (Italy)
Methane (CH{sub 4}) diffuse emissions from Municipal Solid Waste (MSW) landfills represent one of the most important anthropogenic sources of greenhouse gas. CH{sub 4} is produced by anaerobic biodegradation of organic matter in landfilled MSW and constitutes a major component of landfill gas (LFG). Gas recovery is a suitable method to effectively control CH{sub 4} emissions from landfill sites and the quantification of CH{sub 4} emissions represents a good tool to evaluate the effectiveness of a gas recovery system in reducing LFG emissions. In particular, LFG emissions can indirectly be evaluated from mass balance equations between LFG production, recovery and oxidation in the landfill, as well as by a direct approach based on LFG emission measurements from the landfill surface. However, up to now few direct measurements of landfill CH{sub 4} diffuse emissions have been reported in the technical literature. In the present study, both modeling and direct emission measuring methodologies have been applied to the case study of Bellolampo landfill located in Palermo, Italy. The main aim of the present study was to evaluate CH{sub 4} diffuse emissions, based on direct measurements carried out with the flux accumulation chamber (static, non-stationary) method, as well as to obtain the CH{sub 4} contoured flux map of the landfill. Such emissions were compared with the estimate achieved by means of CH{sub 4} mass balance equations. The results showed that the emissions obtained by applying the flux chamber method are in good agreement with the ones derived by the application of the mass balance equation, and that the evaluated contoured flux maps represent a reliable tool to locate areas with abnormal emissions in order to optimize the gas recovery system efficiency.
- OSTI ID:
- 21578459
- Journal Information:
- Waste Management, Vol. 31, Issue 8; Other Information: DOI: 10.1016/j.wasman.2011.03.013; PII: S0956-053X(11)00127-9; Copyright (c) 2011 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; ISSN 0956-053X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
BIODEGRADATION
COMPARATIVE EVALUATIONS
EFFICIENCY
EMISSION
EQUATIONS
GREENHOUSE GASES
ITALY
LANDFILL GAS
MASS BALANCE
METHANE
MUNICIPAL WASTES
ORGANIC MATTER
SANITARY LANDFILLS
SIMULATION
SOLID WASTES
SURFACES
ALKANES
CHEMICAL REACTIONS
DECOMPOSITION
DEVELOPED COUNTRIES
ENERGY SOURCES
EUROPE
EVALUATION
FLUIDS
FUEL GAS
FUELS
GAS FUELS
GASES
HYDROCARBONS
MANAGEMENT
MATTER
ORGANIC COMPOUNDS
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES
WESTERN EUROPE