Dr. Changtao Chen earned his Ph.D. from Ghent University in Belgium and subsequently conducted postdoctoral research there. His primary research focuses on the application of cold plasma-based advanced oxidation processes for controlling emerging contaminants, encompassing areas such as sludge resource recovery, phosphorus reclamation, and the design of microbial biofilm reactors. He is dedicated to advancing the engineering application of cold plasma technology in water treatment. Proud academic achievements include 15 SCI journal publications as first or corresponding author in prestigious journals such as Water Research (3 papers), Chemical Engineering Journal (4 papers). Dr. Chen has been invited to deliver 9 English oral presentations at major international conferences, including the International Water Association (IWA) World Water Congress & Exhibition and the International Conference on Plasma Science & Applications (ICPSA), systematically showcasing his innovative work in reactor design, mechanistic understanding, and process integration. Keywords: Cold Plasma; Advanced Oxidation Processes; Water Treatment; Emerging Contaminants; Sludge Resource Recovery; Phosphorus Recovery; Biofilm Reactor.