Biological Water Treatment: Ensuring Water Reuse Policy for Walailak Community
Walailak University has been promoted to be a green university of happiness and sustainability, aligning with the WU 20-year strategic plan (2018-2037) on the 5th strategy. The strategy aims to promote the image of the university as one of the most sustainable universities in the world. In addition, WU is pursuing being ranked at a higher level by the UI Green Metric World Ranking. Yet, at the same time, Walailak University has improved public utility, energy management, climate system modeling, water management, transportation, and environmental action plans.
Walailak University issued the “Water Reuse Guidelines” in 2022 and has adopted the wastewater treatment system supervised by the Division of Waste Management Landscape Architecture and Environment. The guidelines were created to encourage the Walailak community to raise awareness of conscious water usage.
The system is able to treat wastewater in the amount of 4,000 cubic meters with a BOD rate of 150 mg/L, and the BOD rate of greywater is 20 mg/L.
The wastewater treatment system at WU is designed to be the biological treatment system equipped with an aerated lagoon, two facultative ponds, and a wetland pond which is used for collecting wastewater before being released to the next pond. It also adopts the UV Disinfection System. The treated wastewater at WU is reused for various university activities including:
- Watering plants on campus
- Farming Nile tilapia
- Cleaning vehicles
- Cleaning roads across campus and corrals in the Center for Smart Farms
- Reducing the temperature of waste incinerators
It can be seen that Walailak University has its own capacity in wastewater treatment leading to reusing water that once used. The university will always implement wastewater treatment as daily work.
Related link:
- https://green.wu.ac.th/wp-content/uploads/2019/11/คู่มือการบำบัดน้ำเสีย123.pdf
- https://waste.wu.ac.th/?page_id=8870
- https://www.youtube.com/watch?v=2AfjgISLd3g
- https://board.postjung.com/1459713
- https://cas.wu.ac.th/sdgs/wp-content/uploads/sites/3/2022/11/Announcement-of-Walailak-University-Subject-Water-Reuse-Guidelines.pdf
Goal 6: Clean Water and Sanitation