Water Recycling
Program
Collecting, treating, and reusing greywater across KMUTT campuses to reduce piped water consumption and advance resource-efficient infrastructure.
80%
2025 Recycle Usage
25%
2024 Target
7
Green Buildings
60,000
m³ Saved / Year
Water Recycling Program in New Building
Since 2010, King Mongkut’s University of Technology Thonburi (KMUTT) has strengthened its commitment to water conservation and sustainable water management in response to growing concerns over drought, water scarcity, and the need for resilient campus water systems. In alignment with KMUTT’s Green University Policy, the university has integrated water recycling systems into all new green building projects.
Currently, seven major buildings across KMUTT campuses are equipped with advanced water recycling technologies. These systems collect, treat, and reuse greywater from restrooms, laboratories, and washing areas for non-potable applications such as landscape irrigation, toilet flushing, and general cleaning.
The technology incorporates filtration and disinfection units that meet national standards for recycled water, ensuring safety and efficiency in every cycle — serving as a replicable model for environmentally responsible development in higher education institutions nationwide.
BRI Building (Green Building)
Sport Complex (Bangkhuntien)
FIBO Building
Wisawa Wattana Building
President Building
Thumaraksa Dormitory 1
Thumaraksa Dormitory 2
Water Recycling Program @ KMUTT
ระบบน้ำสะอาดหมุนเวียนใช้ใหม่ ภายใน มจธ.
Sink & handwashing (greywater source)
Restroom wastewater (collection)
Collect → Treat → Store in campus reservoirs → Reuse
Landscape irrigation
Cleaning & maintenance
Greywater Segregation & Reuse
At King Mongkut’s University of Technology Thonburi, wastewater management promotes sustainability through advanced water segregation and recycling systems. The university distinguishes between grey water (from baths, sinks, washing machines, and kitchen facilities) and black water (from toilets), ensuring each type is treated appropriately.
Through KMUTT’s Water Recycling Program, grey water is collected, treated, and repurposed for non-potable applications — reducing water demand and optimizing resource utilization across the campus.
Grey Water
From baths, sinks, washing machines, and kitchen facilities — collected and treated for reuse in non-potable applications.
Black Water
From toilets, containing organic waste and potential pathogens — managed through dedicated treatment systems before discharge.
Recycled grey water is now used in multiple daily operations:
Gardening
Construction activities
Bike cleaning
Floor / Road cleaning
Toilet flushing
~60,000 m³
Piped water consumption reduced per year through greywater reuse — lowering utility costs while mitigating environmental impact from freshwater extraction and wastewater discharge.
Key Outcomes
Target
25% of recycled water usage in campus by 2024.
Status (2025)
80% of water recycle usage in campus — exceeding the 2024 target.
80% achieved
This achievement highlights KMUTT’s proactive leadership in sustainable water management, showcasing how innovation, infrastructure, and environmental stewardship can work together to create a model for responsible campus operations.
Water Recycling in Action
Recycling systems, green buildings, and campus reuse activities.
