Samarakoon, Gamunu received his Ph.D. degree in Process Engineering and M.Sc. degree in Energy and Environmental Technology from the University of South-Eastern Norway (USN), Porsgrunn, Norway, in 2015 and 2010, respectively. His Ph.D. research focused on the molecular structure properties of amine-based solvents to absorb CO2 from flue gas. He is currently working as an associate professor at the department of Process, Energy and Environmental Technology, USN. His research works focus on conceptual and mathematical modelling and simulation pursuing bioresource management, and life cycle assessments. He also involves in research in biological waste treatment processes.