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MIT’s New Desalination System Produces Freshwater That Is “Cheaper Than Tap Water”
(scitechdaily.com)
this post was submitted on 06 Oct 2023
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It's a solar still that can operate continuously without maintenance as it doesn't get clogged with salt. That's a pretty nifty and practical achievement.
They're also proposing it be used at household scale, because the system is so small, rather than scaled up to factory scale.