Slashdot Mirror

← Back to Stories (view on slashdot.org)

A Clever New Approach To Desalination

Posted by kdawson on from the pass-the-salt dept.

jbeaupre writes "The Economist reports on progress by a company called Saltworks on using saline gradients to do the heavy lifting of desalination. In essence, Saltworks uses solar energy or waste heat to concentrate sea water. They then use the ionic gradient between the concentrated brine and two sea-water streams to pull ions from from a 3rd sea-water stream. It appears to work with entropy by trading the reduced entropy of the desalinated water against the increased entropy of 'mixing' the brine and the other sea-water streams. The article only discusses Na and Cl, but even just removing these ions is a step in the right direction."

3 of 128 comments (clear)

  1. It's old actually by Anonymous Coward · · Score: -1, Offtopic

    Just have her swallow.

  2. I'll get modded off topic.... by allaunjsilverfox2 · · Score: 0, Offtopic

    But it was kinda funny, right above the article title was a statement on how to filter firehose.

    --
    Restore the madness of youth's lechery
  3. You lost me at 'Desalination' ... by Anonymous Coward · · Score: -1, Offtopic

    Huh, what ?