KMUTT provide Municipal solid waste management system by educate all in campus with KMUTT’s Municipal solid waste management system Manual. The manual have four main parts including waste segregation, waste collection  , waste utilization and  Recyclable waste bank. The most importance part of Municipal solid waste management is waste segregation. At KMUTT, four colored bins are provided including green, yellow, blue and red which represent for organic waste, recycled waste, non–recycled waste, and toxic waste respectively. Those organic waste such as leaves, grass, fruit and cooked food are collected for composting process where organic matter has been decomposed into fertilizer for use with tree and plant around campus. In one month, we can produce compost from organic waste more than 300 kg.

Organic waste treatment

In 2024, KMUTT has successfully treated 34.39% of its organic waste on campus, showcasing the university’s commitment to sustainable waste management. In 2022, KMUTT generated 181,789 kg of organic waste, making up 44.42% of total municipal solid waste, including 50,597 kg of food waste and 130,789 kg of leaves and garden waste.

Of this waste, 36,000 kg of food waste is processed through the university’s Waste-to-Energy initiative. Using an anaerobic digester, food waste is converted into biogas and fertilizer within 24 hours per batch. Additionally, 3,984 kg of garden waste is sent to the Waste Utilizing Center for composting, producing liquid fertilizer.

The remaining 141,402 kg of organic waste, including food scraps and leaf debris, is sent to government agencies for processing due to limited space on campus.

Through these efforts, KMUTT produces 3,600 m³ of biogas per year and 12,264 kg of fertilizer as by-products of biogas production, as well as 18,000 liters of liquid fertilizer annually from the Waste Utilizing Center. These outputs significantly reduce the university’s carbon footprint by 794,048.7 kg CO₂-e per year and lead to savings of over 2,785.69 USD annually in waste management, LPG, and fertilizer costs.

KMUTT’s organic waste management program highlights the university’s proactive approach to sustainability, transforming waste into valuable resources and promoting an eco-friendly campus environment.

Targets: 100% of food waste are completed to biogas and fertilizer.
Current Status: In 2024, 35.23% of food waste are completed to biogas and fertilizer.

At KMUTT Cafeteria, tons of food are wasted including raw meat, vegetable peelings, bones and shells and leftovers dish. All of them are produced approximately 300 kg of food waste/day. Hence, KMUTT set up waste utilization program in organic waste to produced bio-gas by using food wastes from food center and canteen in the campus. The amount of 100 kg of food waste/day produce around 10 m³/day of bio-gas. This bio-gas is used for cooking and boiling water at canteen. Beside, there are also the by-product which is soil conditioner or fertilizer. These waste utilization activities reduce around 20 percentage of total municipal solid waste and make high benefits from waste to energy and waste to organic farm in the campus. There are four main advantages why the anaerobic digester is best option to the campus. First, cafeteria has a consistent in gas demand and waste generation which is predictable. The historical static data from University show that the number of student and university staffs are followed a similar pattern which is very helpful in plant well–design to enhance the efficiency of production. Second, the climate in Thailand is hot and humid as located in the tropical area. The climate is suitable for bacteria (Mesophilic and Thermophilic) to decompose organic matter and increase their product rate of methane gases. Third, soil conditioner which is by–product can be used for trees and flowers within campus. Last, this plant can be a learning center for student who interest in Renewable energy and waste utilization.