Alternativas para o gerenciamento de resíduos sólidos urbanos: análise técnica preliminar para o município de Juiz de Fora-MG

Abstract

The present study evaluated the environmental, socioeconomic, and municipal impacts of alternatives for managing urban solid waste (USW). The research focused on a critical analysis of different alternatives for waste management, considering the specific challenges faced by the city of Juiz de Fora. The aim was to assess the impacts of implementing diverse technologies in a prioritized order. An extensive literature review was conducted on the main USW treatment alternatives, including landfills, incineration, recycling, and composting. Three scenarios were then analyzed based on mass balance and waste flow using the Routes and Costs Tool. These scenarios were defined by presenting different treatment models and validated according to goals set by the National Solid Waste Plan (PLANARES) for various target years. The results were discussed in terms of sustainability, highlighting limitations of the tool and suggesting new possibilities for integrated management in the municipality. The study concludes with positive impacts from diversifying solid waste treatments prior to final disposal. For example, the volume at the landfill decreased by tenfold compared to current values in m³/day. Beyond meeting the PLANARES targets regarding the percentage of waste recovery not directed to landfills, achieving a recovery rate of around 74%.