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Introduction: The disposal and management of solid waste is a growing problem, closely related to the current environmental situation. The text contextualizes the fact in time and space, to then focus on the department of Tolima. At the University of Ibagué, a solidarity research project that is being developed has led to a review of the situation of deep disorganization that is experienced in this regard, with serious regional repercussions. The research proposes and demonstrates in a practical way how it is possible to overcome or at least attenuate the negative evolution of the problem,aiming for the area to be self-sufficient in the medium term in the management of solid waste, and to later become a model for other regions within the country. Objective: The present research aims to propose and practically demonstrate how the problems of waste management can be mitigated. Theoretical Framework: The theoretical framework of the research is based on the historical evolution of recycling, the influence of environmental movements with contributions such as those of Rachel Carson, and international frameworks such as the Zero Waste International Alliance (ZWIA) and the 3R model (Reduce, Reuse, Recycle). In the Colombian context, regulatory references such as the National Code of Natural Resources (1974) and Resolution 2184 of 2019, which guide the circular economy, are highlighted. Likewise, approaches to responsible consumption and the local perspective are incorporated, integrating local action with the global dimension of the environmental crisis, thus providing a solid conceptual foundation for the research. Method: The research "Complete Cycles for Life (3C)" employs a participatory and solidarity-based methodology, framed within action research. It is characterized as demonstrative and applied, articulating academia, community, business, and the State to close the cycle of transformation of plastic and biodegradable waste. Its development relies on the methodological axis of the 3C (Awareness, Knowledge, and Commitment), promoting processes of awareness-raising, knowledge exchange, and collective commitment. Through training sessions, practical recycling tests, and prototype design, the aim is to generate a replicable model of self-sufficiency in solid waste management. Results and Discussion: The results show that the solidarity project facilitated the creation of recycling prototypes and strengthened community awareness. The discussion highlights how the collaboration between academia, business, government, and community enabled progress in closing the waste cycle, although limitations related to the lack of technical infrastructure in the territory remain. Research Implications: The research has practical implications for the circular economy, environmental education, and public management by proposing a replicable waste management model. On the theoretical level, it strengthens approaches that integrate awareness, knowledge, and commitment, contributing to the study of sustainability and environmental policy. Originality/Value: This study brings originality by addressing solid waste management from a solidarity-based, participatory, and demonstrative approach, integrating academia, community, business, and the State in the search for sustainable solutions. Its value lies in the possibility of replicating the model in other territories, contributing both to the literature on sustainability and circular economy and to professional practice in environmental management, by offering applicable alternatives that strengthen social awareness and innovation in recycling.