This study explores the optimization of biodegradable waste management practices, focusing on composting and water treatment at Aurora Senior High School. Despite the school's ongoing waste management efforts, inefficiencies in waste segregation, composting methods, and wastewater treatment pose environmental and health concerns. This research evaluated the existing waste management system and water treatment. Using a quantitative descriptive research design, data were collected through structured surveys distributed to science teachers, maintenance staff, and student volunteers actively involved in waste management initiatives, which composed of 50 respondents. The study employed frequency distribution, percentage, mean and standard deviation as statistical tools. Findings reveal that while composting significantly reduces biodegradable waste and improves sanitation, challenges persist, including limited composting bins, inadequate resources, and poor enforcement of waste management policies. Additionally, technical difficulties in maintaining composting and wastewater treatment facilities hinder overall efficiency. Despite a balanced gender representation in waste management participation, awareness and engagement in proper waste disposal remain insufficient. The study suggests that improved policy enforcement, increasing resource allocation, and integrating waste management education into the curriculum could enhance sustainability. Best practices from other institutions, such as advanced composting techniques and enhanced wastewater treatment methods, can also be adapted to strengthen the school's waste management framework. The study highlights the necessity of structured interventions to ensure long-term environmental responsibility within the school community.

Keywords: biodegradable waste management, composting, water treatment, sustainability, waste reduction