New solar desalination breakthrough makes fresh water without toxic brine
4 hours ago
- #brine-free technology
- #mineral recovery
- #solar desalination
- Scientists developed a solar desalination system using laser-textured metal panels that convert seawater to fresh water without producing toxic brine.
- The system uses sunlight to evaporate water and directs salt deposits away from the active area to prevent clogging, successfully tested with water from three oceans.
- It recovers nearly all salts as solids, which can be valuable resources, including lithium extraction for batteries, demonstrated with water from Utah's Great Salt Lake.
- This approach addresses challenges of traditional desalination methods, which are energy-intensive and generate brine harmful to marine ecosystems.
- The research, supported by organizations like the NSF and Gates Foundation, shows potential for scaling up to improve clean water access and sustainable mineral sourcing.