This study explored the utilization of methane gas produced through a biogas digester as a basis for improving the waste disposal management system at EARIST-Cavite Campus. Specifically, it assessed the existing conditions of solid waste management-covering biodegradable, recyclable, residual, and hazardous waste—and identified the major challenges encountered in each category. The research also evaluated the feasibility of methane gas production through biogas digestion by examining its safety, usability, the materials and equipment required, and the procedures involved, as perceived by teaching and non-teaching personnel.
Employing a descriptive research design and stratified sampling, the study collected data through survey questionnaires and interviews. Findings revealed that biodegradable and recyclable wastes are often properly segregated, reflected by high composite means of 4.35 and 4.25. In contrast, residual and hazardous wastes are only sometimes appropriately separated, indicating areas requiring stricter implementation and monitoring. Challenges also emerged from improper waste disposal practices within the surrounding community, which negatively affect the campus environment.
Assessment of the biogas digester showed generally positive perceptions. Respondents agreed that methane gas production is safe (3.87 composite mean) and highly usable, particularly in converting solid and liquid waste into agricultural fertilizer (4.88). Materials such as cow dung were strongly endorsed as effective inputs, and procedures for operating the digester were deemed simple and manageable. Significant differences in assessment were observed between respondent groups regarding safety and material requirements, while usability and procedures showed no significant variation.
The findings support the integration of biogas digester technology as a sustainable, practical, and environmentally responsible solution for waste disposal management at EARIST-Cavite Campus. The study underscores the potential of methane gas production to enhance institutional waste practices while promoting renewable energy and environmental stewardship.