187: Smart Monitoring of Household Composting: An Ultra-Low-Cost Iot-Based Approach For Methane Emission Reduction In The Context of Smart Cities

Organic waste mismanagement significantly contributes to methane emissions, exacerbating climate change. To address this, many municipalities in Chile promote home composting, yet effectiveness relies heavily on proper management. This study proposes an IoT-based low cost monitoring system to distinguish correct composting practices from improper ones. Two smart composters were monitored over two months using sensors measuring temperature, humidity, and gas concentrations. One composter was properly managed, while the other intentionally received inappropriate materials. Statistical analyses (Mann-Whitney U, Shapiro-Wilk, PELT) revealed significant differences in temperature stability, humidity balance, and gas emissions between the composters, particularly following misuse. Key findings included identifying clear statistical thresholds for early detection of improper compost management. Results demonstrate that continuous, sensor-based monitoring effectively differentiates between proper and improper composting, providing a robust basis for scalable IoT systems that enhance composting efficiency, promote sustainable practices, and reduce greenhouse gas emissions.