On September 16, 2025, Asst. Prof. Dr. Nathiya Kreetachat led second-year students from the Bachelor of Engineering Program in Environmental Engineering, School of Energy and Environment, to a study visit on the Mechanical Biological Treatment (MBT) waste sorting and processing system at the University of Phayao.

They were welcomed by Dr. Prus Pingmuanglek, Director of the Center for Environment and Sustainable Management, who also gave a lecture on the university’s current waste management practices. Examples included:

• Recycling plastic waste such as bottle caps into hangers, with the remaining scraps used to make paving blocks,

• Converting plastic waste into fuel oil for grass-cutting machines,

• Processing opaque plastic bottles into plastic feedstock for 3D printers,

• Producing refuse-derived fuel (RDF).

The visit aimed to provide students with tangible, practical learning experiences outside the classroom.