If freezing salt water produces freshwater ice, why is desalinization such a difficult problem?
https://www.youtube.com/watch?v=c2wafIzuvlI
I was watching the above minute physics video, and they indicated in a brief one sentence line that saltwater freezes into freshwater ice. That got me thinking.
Under what circumstances could you actually freeze salt into ice? To make salt ice?
It’s not that desalinisation is “hard”, you could just boil the water for example. It’s that it’s extremely energy intensive and complex to setup a process that’s both repeatable in industrial quantities and can produce enough flow to satisfy demand.