Young-chae Song is a noted Full Professor in Environmental Engineering at Korea Maritime and Ocean University, South Korea, and received a Ph.D. from the Korea Advanced Institute of Science and Technology (KAIST) in 1995. His expertise is frequently shared through lectures and seminars, contributing significantly to academic discourse in environmental engineering. Dr. Song is a recognized authority in anaerobic digestion, leading innovative environmental solutions using electrochemical and bioelectrochemical technologies. His pioneering work focuses on producing methane and hydrogen from organic waste, biological nitrogen removal, and other remediation processes, with a particular emphasis on creating green technology for methane production from low-grade coal, achieving significant breakthroughs in this area. Actively involved in various academic societies, Dr. Song is a member of several esteemed environmental and marine engineering societies in Korea. He has distinguished himself as a guest editor for the International Journal of Hydrogen Energy and as an editorial board member for Peer J and Processes, showcasing his commitment to advancing knowledge and research in environmental engineering.