Determinação das características ótimas do blend de resíduos do município de Betim/MG para coprocessamento em cimenteiras.

In the current environmental scenario, sustainable technologies for waste disposal have gained strength. With the need to extinguish dumps and determine the order of priority for waste disposal, established by Law 12.305 / 2010, processes such as recycling become increasingly feasible and economically competitive. However, there are two major complicating factors to leverage recycling rates in the country: The cultural aspect of the Brazilian people who do not have the habit of separating recyclable waste from others and the precarious structures that waste collectors' associations have to play their role job. Another solution to a more sustainable destination is energy recovery for coprocessing. This technology consists in using waste with energy potential, properly ground and homogenized, to serve as fuel for cement kilns. In this context, the objective of this work is to evaluate the destination of solid waste in the municipality of Betim/MG considering the order of priority established by the National Solid Waste Policy and to verify if there is potential for the use of part of the solid waste that is currently destined for landfill coprocessing technology. Finally, determine the value of the waste blend through comparative for use in cement kilns. The methodology adopted is based on the gravimetric analysis of the municipality, chemical analyzes and formulation of the waste blend through an optimization model. At the end of the study, it was concluded that the use of the blend would be possible and advantageous for cement factories that would reduce their costs as well as for the municipality that would not generate an environmental liability with waste disposed in a landfill.