Question: Could you extract salt out of the oceans' water? And if yes, how?

Asked by svetty to Mark on 5 Sep 2012.

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  1. Photo: Mark HamannMark Hamann
    answered on 5 Sep 2012:

    Yes you can, it is called desalination. There are several desalination plants in Australia and they are used to help supply drinking water – gold coast, adelaide, perth etc. One of the main issues is what is done with the salt…

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Comments

  1. Photo: svettysvetty
    commented on 6 Sep 2012:

    COuld you just use the salt as a food supplement?

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  2. Photo: MarkMark
    commented on 6 Sep 2012:

    That is a good question. I didn’t know the answer so I went to the internet. Despite about 30mins of search I could find very little information. But the consensus seems to be that the salt residue would not be pure and clean enough – it has other natural minerals plus possible contamination from the process. So it could be used but it would have to be purified which would cost a lot of money, and significantly more money than existing salt.

    On the enviro side they mix the salt with water discharge to dilute it which helps

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