1. An introduction to green membrane technology 2. Green solvents for membrane fabrication 3. 3D printing in membrane technology 4. Recycled materials for membrane fabrication 5. Biomimetic membranes 6. Green nanofiber membranes 7. Bio-sourced and biodegradable materials for membrane fabrication 8. Green surface modification methods and coating techniques for polymer membranes 9. Inorganic membranes for green applications 10. Stimuli-responsive catalytic membrane reactors: current challenges and future outlook in water treatment technologies 11. Aqueous phase separation technology 12. Green energy generation using membrane technologies based on salinity gradient 13. Renewable energy sources utilized for membrane desalination processes 14. Membrane Technology for Brine Management and Valuable Resource Recovery 15. Gravity-driven membrane separation for water treatment 16. Membrane processes in food and pharmaceutical industries 17. Sustainable organic solvent nanofiltration membranes 18. Fuel cell technology for green energy generation 19. Atmospheric water production 20. Perspectives