Dr. Theerayut Phengsaart is a Lecturer at the Department of Mining and Petroleum Engineering, Chulalongkorn University. He completed his Bachelor's and Master's degrees in Georesources Engineering at Chulalongkorn University in 2013 and 2016, respectively. In 2019, he received his PhD degree in Sustainable Resources Engineering at Hokkaido University. His areas of research interest are mineral processing, physical separation, coal cleaning, resources recycling, plastic separation, solid waste management, and environmental remediation.