Dr. Zhien Zhang is a research fellow at the Ohio State University and also Visiting Professor at University of Cincinnati. He is Editorial Supervisor of Journal of Natural Gas Science and Engineering and Associate/Assistant Editor in several journals such as Applied Energy, Environmental Chemistry Letters. He also served as a Technical Program Committee member in several international conferences. His current area of interest is acid gases removal (i.e. CO2, SO2 or H2S, etc), gas emissions control and membrane technologies in the fields related to chemical, environmental, material, and energy engineering. Dr. Wenxiang Zhang is a research fellow at the University of Macau. He attained the PhD degree from University of Technology of Compiegne (France) and accomplished the first postdoctoral research there. Since 2019, he begun to work in theDepartment of Civil and Environmental Engineering in University of Macau, engaged in the teaching and research on the area of membrane water treatment. He has participated in several research projects pertinent to water treatment of France, Macau SAR, and China. To date, he has published more than 30 papers (~90% in top 10% journals, 17 h-index, 900 total citations and 270 total Impact Factors by July 2020) on the core periodicals as the first author.Dr. Mohamed M. Chehimi is Senior Researcher at the French CNRS. His main research topics involve the design of reactive and functional polymer and nanocomposite coatings. He has spent time and efforts developing aryldiazonium salts as new coupling agents in materials science. The applications encompass adsorbents, electrochemical sensors, reactive fillers, antibacterial surfaces, and electronic devices. He is expert of X-ray photoelectron spectroscopy ANALYSIS of a broad range of materials including polymer composites. Dr. Chehimi has supervised over 22 PhD theses and collaborated with academic researchers from 20 countries. He has over 330 research papers, 23 book chapters and 3 patents to his credit. He is the editor of three books and guest-edited five themed issues. In 2017, Dr. Chehimi has been appointed Executive Editor-in-Chief of Chemistry Africa by the Tunisian Chemical Society and Springer.

• Introduction.- Membrane definition, characterization and simulations.-    High performance membrane for natural gas sweetening plants.- Hydrocarbon separation and removal using membranes.- Hydrodynamic condition in a pressure-driven membrane system and its impact on membrane fouling.- Hydrodynamic enhancement within dynamic filtration for resource recycling.- Treatment of concentrated saline effluent by membrane distillation and pervaporation.- Advanced membrane technology for textile wastewater treatment.-  Photocatalytic membrane for micro-polluted wastewater treatment.- Recent trends in membrane processes for water purification of brackish water.- Ageing and degradation of ion-exchange membranes.- Current strategies for the design of antifouling ion-exchange membranes.- Membrane applications in agriculture and food industry.- Membrane applications in fuel cells.- Energy optimization in membrane desalination.- Membrane-based energy recovery ventilators.- Membrane technology: Recent patents and industrial products.