Estimativa da geração de biogás em aterro sanitário urbano localizado no sul do Brasil

Abstract

Biogas is the product of anaerobic digestion from organic matter, being the urban landfill one 29 of the main generators of this gas. Methane is the major component of biogas, therefore 30 energy use is an option that should be considered being necessary for this, to estimate biogas 31 production in solid waste landfills, for further evaluation of its practical and economic 32 applicability. This study aimed to estimate biogas generation from an urban landfill through 33 existing computational models and programs and to raise alternatives and/or ways to use the 34 generated biogas. The biogas composition from the landfill studied was 50.23% methane, 35 38.35% CO2, 2.40% O2 and 9.02% of the other components (others). From the biogas 36 estimation models, it was obtained an accumulated amount of 5,633,207,689 m³ as a result of 37 the IPCC Waste Model (2006). For the Design Method the amount accumulated was 38 2,158,542,371 m³ and for the LandGEM model was 3,371,469,805 m³. Finally, the main 39 alternatives for using biogas are in the form of electricity, thermal energy and biomethane, 40 making the biogas a renewable fuel that should be used.