Desalination system could produce freshwater that is cheaper than tap water
news.mit.edu
A new solar desalination system takes in saltwater and heats it with natural sunlight. The system flushes out accumulated salt, so replacement parts aren’t needed often, meaning the system could potentially produce drinking water that is cheaper than tap water.

According to MIT, this technology works even at small scale, with one the size of a suitcase able to desalinate 6 litres per hour, and only needing to be serviced every few years.

Here’s a video detailing how it works.

  • @[email protected]
    11•10 months ago

    Depends on the person - I have seen households where a person uses less than 20 liters per day. :)

    Besides, seawater can be used to wash oneself or flush a toilet - I think it’s the use of drinking water that makes a difference.

    • @[email protected]English
      15•10 months ago

      Saltwater isn’t great for utilities, because it’s extremely corrosive. The saltwater would function ok for a while, but it would eventually destroy the toilet. Additionally, the saltwater would need to be sent down the sewage for waste disposal, which the entire processing flow would need to be updated to handle saltwater.

      It’s much cheaper to use freshwater to start with.