this post was submitted on 28 May 2024
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[–] [email protected] 23 points 5 months ago (2 children)

Might as well take out all the plastic while at it.

[–] [email protected] 17 points 5 months ago (1 children)

Actually we're going to replace the metal with plastic.

[–] [email protected] 2 points 5 months ago

If I have to have microplastics in my balls, then the fish do too dammit!

[–] [email protected] 5 points 5 months ago (1 children)

some of these are removed one step upstream (in desalination plant)

[–] [email protected] 5 points 5 months ago (1 children)

Fun fact: the person your replying to had absolutely no idea that a desalination plant was involved in this process.

[–] [email protected] 4 points 5 months ago

it's worse than reddit, but these come mostly from lemmy world

[–] [email protected] 18 points 5 months ago (2 children)

And in 10 years: Fishes are dying due to the severe lack of nutrition in sea water after humans exploited it for mining of metals. We're not learning of past mistakes.

[–] [email protected] 9 points 5 months ago

lol and what else

this process is already in use in dead sea chemical works and it's about separating magnesium, just this time it uses desalination brine as an input

so it gives some table salt, and depending on what you want it to output, potassium chloride, magnesium salts or metal, gypsum, lithium

Returned brine is damaging to seafloor so returning less salt is a net improvement

[–] [email protected] 1 points 5 months ago

Don't worry we already ate most of the fish. The remaining fish don't need all the minerals they once did.

[–] [email protected] 15 points 5 months ago

We really are speedrunning this end of all multicellular life thing, huh?

[–] [email protected] 10 points 5 months ago (1 children)

Since a lot of people seem to be jumping to extreme conclusions about this based on specious assumptions, here's how the process works according to the article:

Magrathea — named after a planet in the hit novel The Hitchhiker’s Guide to the Galaxy — buys waste brines, often from desalination plants, and allows the water to evaporate, leaving behind magnesium chloride salts. Next, it passes an electrical current through the salts to separate them from the molten magnesium, which is then cast into ingots or machine components.

[–] [email protected] 5 points 5 months ago

that description is also not entirely accurate, because they're separating magnesium chloride by crystallization i guess, maybe some other methid, and then dry it, melt it, electrolysis gives magnesium metal and chlorine gas. just like in conventional process

[–] [email protected] 9 points 5 months ago

And killing sea life along with it

[–] [email protected] 6 points 5 months ago

itt people who under no pretext will read the linked article

[–] [email protected] 4 points 5 months ago* (last edited 5 months ago)

This was a Donald Duck comic when I was a kid in the 1970s. The smart inventor (Ludwig Von Drake) was trying to mine gold from the ocean, but the energy cost was too great and so it was done at a loss.

We try this once in a while, and it's still too expensive.