Nabin Aryal is an Associate Professor at the Department of Process, Energy and Environmental Technology, Porsgrunn Campus, University of South-Eastern Norway (USN), Norway. He received MSc in Environmental Technology and Engineering from Ghent University, Belgium, with an Erasmus Mundus fellowship from the European Union and then a PhD. from the Technical University of Denmark (DTU) in Environmental Engineering with a fellowship from Novo Nordisk Foundation, Denmark. Before joining USN, Dr Aryal engaged in joint industrial postdoctoral research at Aarhus University and the Danish Gas Technology Center, Denmark. He has more than a decade of work experience from Norway, Denmark, Belgium, the Czech Republic, India, and Nepal. His current research focuses on bioelectrochemical systems, microbe-material interaction, biofilm-based bioprocess development, and anaerobic technology. He is an active Reviewer of more than 50 International Peer-Reviewed Journals, an editorial board member of the International Journal of Environmental Science and Technology - Springer, and lead editor of several special issues for international journals. He has co-authored over 50 scientific publications and edited two books on biogas upgrading and microbe-material interaction that received an h-index 18 (>1500 citations; Google Scholar).