Jiechen has a PhD degree in Industrial Ecology from KTH Royal Institute of Technology.
Research interests include sustainable urban water management, with a special focus on human mediated sources of containments and their transport and fate in urban drainage systems.
Jiechen’s PhD research, investigated future nitrogen and phosphorus flows from urban sources to water recipients upon various scenarios (of e.g., climate change, land use change, changes in source strengths), through developing a SFA (Substance Flow Analysis) based model for urban catchments. The research is been continued by analyzing and managing phosphors flows at industrial, agricultural, city and regional scales, from both environmental protection and resource conservation perspectives, by employing modelling and systematic approaches.
Recent research projects include stormwater quality, sediments quality and integrated management solutions at urban water research group at LTU.