Desalination system could produce freshwater that is cheaper than tap water

Re:Desalination system could produce freshwater that is chea... by abakker on Wednesday September 27, 2023 @02:12PM (#37678768)

Ultrasonic "steam" tends to aerosolize the total dissolved solids. Google "white dust" in regards to ultrasonic humidification. I suspect that this would not work for desalination.

Aside:

I have a home-built ultrasonic humidifier. If I run it with Boulder, CO tap water that is low in TDS, it only takes a day or so to have a PM2.5 >600 in my house. For this to work I had to install an RO filter in order to humidify with ultrasonic and not degrade air quality.

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Re:Desalination system could produce freshwater that is chea... by chipsa on Wednesday September 27, 2023 @02:45PM (#37679323)

Ultrasonic humidifiers need to be run with distilled or equivalent purity water, yes. Not just for the lack of salts being aerosolized, but also because anything that may incidentally grow in the water also will be aerosolized. Distilled water helps minimize growth.

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Re:Desalination system could produce freshwater that is chea... by hinkley on Wednesday September 27, 2023 @05:28PM (#37681589)

Also the total undissolved bacteria and ameoba.

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