Desalination: Turning Seawater into Drinking Water Through Reverse Osmosis, Distillation, and Electrodialysis

Seawater is undrinkable due to high salt and mineral content. To make it potable, desalination is required:

• Reverse Osmosis (RO): High pressure forces water through a semipermeable membrane that blocks salts and minerals. Most common method.
• Distillation: Water is heated to vapor, then condensed, leaving salts behind. Energy-intensive but produces high-purity water.
• Electrodialysis: Electric current separates ions through ion-exchange membranes.

After desalination, water undergoes disinfection, filtration, and often remineralization for taste and health. Desalination plants require significant energy and infrastructure, but advancing technology is improving efficiency and cost-effectiveness, especially in water-scarce regions.