I have a friend who goes to Burning Man every year. I call it “HippyFest West”. It’s different from “HippyFest East”, which is where Ty goes every year to see live music. I much prefer the latter.
Most of the large desalination plants take their concentrate (backwash) out to sea, at least the ones I learned about. A pipe discharge created a plume of concentrate that kills things, but with cheaper energy, it’s cheaper/easier to take that further out and likely easier to get more efficient mixing with the sea using methods other than pipe discharge.
That reminds me of the Trailer Park Boys episode, where Ricky claims that the ocean is nature’s garbage dump. Throw something in the water and the tides take it away.
You’d still need the infrastructure to create that discharge, and even then you’re simply moving the point of ecological impact farther away. You may not care, but trust me, some people will. Secondly, piping to the ocean isn’t really a solution in the middle of the desert.
I understand about the desert, but any brine discharge requires a permit. In the desert, they likely just obtain a permit to evaporate it in ponds. In discharge to the sea, that permit is likely aimed at not creating any zones where the saline concentration exceeds some limit. Long story short, the more you can avoid concentrations through better mixing (and likely deeper depths), the easier it will be to obtain a discharge permit.
Hooboy…don’t get me started on evaporation ponds. Just a big pit with salt that percolates down and salts up the little fresh water you have. And then what do you do with all that salt after the evaporation?
And I get the permitting part, but it’s just not as easy as you seem to think it is. Not that it can’t be done, but it’s not an easy solution either. This technology to supply power may solve that power efficiency piece of the problem, but there are still others with the efficiency of the desalination process itself. Those are the more limiting issues.
You are totally missing the obvious solution. You gather it up, strap it to a rocket and shoot it into the sun. It worked so well with nuclear waste, it’s the obvious choice here.
I was tongue-in-cheek going to suggest searching for an oxidizer that would work for those salts. But now I wonder if it might actually be possible. Are those potassium-based salts?