Summary #1172

Unorthodox desalination method could transform global water management
  • Desalination is viewed as a solution to the water shortages that, according to many experts, will start happening globally within 10 years.
  • But it seemed too expensive, until recent development of a new method - temperature swing solvent extraction (TSSE).
  • TSSE is done without boiling water, and uses a low-polarity solvent at low temperatures to turn salt into solid crystals that are easy to remove.
  • Heated up to 70 °C, the solvent releases water as if from a sponge, with more than 90% of the initial salt content removed.
  • Further testing and optimization of the method will follow, possibly resulting in a very cost-effective, easily scalable way to desalinate water.


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