CHBE Seminar: Dr. Xitong Liu, Asst. Prof., Engr. & Applied Sci. The George Wash. Univ.
Friday, September 23, 2022
Room 2108 Chemical and Nuclear Engineering Building
301 405 1935
Climate change and anthropogenic pollution are contributing to the increasing scarcity of freshwater resources in many regions around the globe. Meanwhile, the development of clean energy technologies relies on critical materials (such as lithium), which can be extracted from water streams. Electrochemical deionization based on carbonaceous and intercalation electrodes has been proposed as a promising candidate for desalinating saline water and for selectively separating toxic or valuable ionic constituents from water. In this talk, I will first introduce our work on the performance evaluation and techno-economic assessment for electrochemical desalination of brackish water. In the second part of the talk, I will discuss the development of selective electrochemical separation technologies, focusing on the removal of nitrate from groundwater and the recovery of lithium from high salinity brines.
Xitong Liu received his B. Eng. Degree (2010) and M. Eng. Degree (2013) in Environmental Engineering from Nanjing University and his Ph.D. degree in Geography and Environmental Engineering from the Johns Hopkins University (2017). Following postdoctoral training at Carnegie Mellon University, he joined the George Washington University as an assistant professor in 2019. His research aims to study environmental interfacial phenomena and develop more efficient and cost-effective water purification and resource recovery technologies. Currently, his group focuses on the fundamentals and application of interfacial and separation technologies in 1) water desalination; 2) groundwater remediation; and 3) recovery of critical materials from water streams.