Methane generation in landfills and its inadequate management represent the
major avoidable source of anthropogenic methane today. This paper models
methane production and the potential resources expected (electrical energy
production and potential carbon credits from avoided CH4 emissions) from
its proper management in a municipal solid waste landfill located in Ouaga
dougou, Burkina Faso. The modeling was carried out using two first-order
decay (FOD) models (LandGEM V3.02 and SWANA) using parameters eval
uated on the basis of the characteristics of the waste admitted to the landfill
and weather data for the site. At the same time, production data have been
collected since 2016 in order to compare them with the model results. The
results obtained from these models were compared to experimental one. For
the simulation of methane production, the SWANA model showed better con
sistency with experimental data, with a coefficient of determination (R²) of
0.59 compared with the LandGEM model, which obtained a coefficient of
0.006. Thus, despite the low correlation values linked to the poor consistency
of experimental data, the SWANA model models methane production much
better than the LandGEM model. Thus, despite the low correlation values
linked to the poor consistency of the experimental data, the SWANA model
models methane production much better than the LandGEM V3.02 model. It
was noted that the poor consistency of the experimental data justifies these
low coefficients, and that they can be improved in the future thanks to ongoingin situ measurements. According to the SWANA model prediction, in 27 years
of operation a biogas plant with 33% electrical efficiency using biogas from the
Polesgo landfill would avoid 1,340 GgCO2e. Also, the evaluation of revenues
due to electricity and carbon credit gave a total revenue derived from methane
production of US$27.38 million at a cost of US$10.5/tonne CO2e.

First-Order Decay, Methane, Modeling, Landfill, Renewable Energy