[ceejayoz]

> The analogy would be if you "un-enrich" it.

But you're doing that with the same water you're trying to make in the first place!

[SoftTalker]

You could just dilute it using fresh seawater, if you used enough and (maybe) spread it over a wider area. The amount of water people need for drinking is a relative drop in the ocean.

[ceejayoz]

Brine doesn't necessarily behave the way you imagine.

https://en.wikipedia.org/wiki/Brinicle

https://en.wikipedia.org/wiki/Brine_pool

[jaggederest]

Blue Planet video of a brinicle, content warning for kind of horrifying death of sea creatures: https://www.youtube.com/watch?v=lAupJzH31tc

[ianthehenry]

And a Blue Planet II video of a brine pool, stronger content warning for much more horrifying death: https://www.youtube.com/watch?v=ZwuVpNYrKPY

[threwrfaway]

You can dilute the brine in a facility before disposing.

[ceejayoz]

Go on. With what?

[asdff]

Seems like you could just dilute it with seawater at like 100:1 ratio and it would be negligible done offshore. We already dump our shit 5 miles out.

[threwrfaway]

100:1 is overkill and energetically very wasteful. It's a fairly straightforward chemical engineering problem.

[pasquinelli]

gasoline

[threwrfaway]

...sea water. You take 10 units of sea water for every unit processed and you'll get a slight increase in salinity.

A phase diagram tells you exactly how far you need to go.

You know this makes more thermodynamic sense than carbon capture, right?

[wlesieutre]

With fresh water, we’ll get it from desalinization! Hey wait a second…

[threwrfaway]

Sarcasm aside, your comment actually works: you can use the freshwater from desalination!

Just wait for the saltwater to come back around in the sewer.

[wlesieutre]

Globally about 70% of freshwater is used for agriculture so less than a third of it will come back around, if it's exclusively for residential/commercial use you might do better but overall not a strategy that balances out