Circular Economy and Reverse Logistics in Amazonian Floating Communities: An Assessment of the Socio-Environmental Impacts of the “Mercado Verde” Project on Lake Catalão

Objective: To assess the socio-environmental impacts of the third edition of the Mercado Verde Project on the floating community of Lago do Catalão, in the municipality of Iranduba, Amazonas. Theoretical Framework: The study is based on the principles of the Circular Economy and Reverse Logistics, linked to Critical Environmental Education, Social Innovation, and Community Social Capital. Methodology: This is a case study with a mixed-methods approach, of an exploratory and descriptive nature. Quantitative data were obtained through the Mercado Verde Project, conducted in June 2026, involving 22 families from the community. Qualitative data were collected through semistructured interviews with community residents and direct observation of activities, as described by Bardin. Results: The recovery of 1,221.2 kg of solid waste was documented, with plastic waste predominating. The qualitative analysis revealed benefits associated with food security, reduced household expenses, and strengthened environmental awareness. Research Implications: The results demonstrate that the integration of reverse logistics, the circular economy, environmental education, and socioeconomic incentives can constitute an effective strategy for community-based solid waste management in areas with limited infrastructure and low coverage of public services. Originality/Value: This study provides evidence on the integrated application of social currency, reverse logistics, and the circular economy in the Catalão community, contributing to the advancement of discussions on social technologies aimed at participatory environmental management. Furthermore, it offers a potentially replicable model for initiatives focused on sustainability, social inclusion, and community empowerment in vulnerable areas.