This course provides fundamental knowledge on adsorption and membrane separation processes. It aims to equip students with the theoretical and practical tools required for the design and operation of adsorption systems and to develop a solid understanding of membrane technologies and their industrial applications. The first part covers adsorption processes, including industrial adsorbents, selection criteria, regeneration methods, adsorption dynamics, and separation techniques such as pressure swing and temperature swing adsorption. The second part focuses on membrane processes, addressing membrane structure, characterization, industrial modules, and key separation techniques such as microfiltration, ultrafiltration, nanofiltration, reverse osmosis, and electrodialysis. A background in mass transfer, fluid mechanics, surface chemistry, and heterogeneous catalysis is recommended.