Estimation of long-term methane emissions from Mechanical-Biological Treatment waste through biomethane potential test

Mechanical-Biological Treatment (MBT) is a technology applied to reduce the environmental impacts of urban waste based on stabilizing organic matter content. As process not entirely efficient, residue can generate methane when it landfilled. Long-term emissions estimation models usually over or underestimated because actual composition after stabilization generally unknown. This work proposes single tool improve emission estimations landfilled MBT determination biomethane potential test (BMP). Experimental BMP crude and stabilized fractions municipal solid obtained from an plant were carried out, results used predict two models, LandGEM (2005) IPCC (2006). In model, experimental value represents L0 while in model allowed obtain ultimate carbon anaerobically degraded (DOCf), linear correlation (R2 = 0.944, p-value < .05) that be DOCf any composition. The long-term (40 years) disposed land showed overestimations up 56.0% (IPCC model) 259.5% (Landgem default data, instead waste; similar behaviour was observed for (23.3% 241.3% overestimations). Moreover, impact revealed reductions 5.1% 20.9% respectively.