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submitted 5 months ago by yokonzo@lemmy.world to c/science@lemmy.world

In the study, scientists put the three plastic compounds into ‘hard water’ — a common type of U.S. freshwater that contains high levels of calcium carbonate and magnesium

When the plastic-containing water was boiled, these calcium carbonates formed tiny clumps around most of the microscopic plastics, trapping them within and rendering them harmless.

The report comes with significant caveats, however.

Scientists only looked at three of the most common — and in the case of polyethylene and polypropylenes, the safest — plastic polymers. They didn’t look at vinyl chloride, for example, a compound of serious concern last month’s study found in bottled water.

Boiling also didn’t manage to remove all of the polymers.

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[-] TWeaK@lemm.ee 66 points 5 months ago

It isn't really a solution, it just encases them in calcium. The plastic is still in there.

When the plastic-containing water was boiled, these calcium carbonates formed tiny clumps around most of the microscopic plastics, trapping them within and rendering them harmless.

The effectiveness may also depend on the type of water and its mineral content.

[-] deranger@lemmy.world 86 points 5 months ago* (last edited 5 months ago)

It is no longer in solution, it precipitated out. This could very well be used to reduce microplastics in water.

https://pubs.acs.org/doi/10.1021/acs.estlett.4c00081

Seems like boiling hard water followed by filtration would do the trick. Decanting after letting the water sit for a while, to allow precipitates to fall to the bottom, could work also.

[-] fraksken@infosec.pub 6 points 5 months ago

If my water supply would be pre-boiled, I would be so happy!

[-] echutaa@programming.dev 19 points 5 months ago

Fun fact calcium carbonate dissolves quickly in acidic solutions, like say stomach acid.

[-] deranger@lemmy.world 61 points 5 months ago

You’re not supposed to drink the flocculated plastic particles. You still have to decant or filter the boiled water; this just makes it easier to remove the microplastics by increasing the particle size.

[-] echutaa@programming.dev 11 points 5 months ago

Seems like a lot of work compared to just using an ro filter, but I also live in an area where you shouldn’t drink the tap because of the crap they put in it.

[-] XTornado@lemmy.ml 2 points 5 months ago

the crap they put in it.

As in actively put in??? Or as in industries or similar dumping stuff into the river or similar?

[-] echutaa@programming.dev 3 points 5 months ago

Yea they intentionally add chloramines which have a range of health issues, but it kills the biohazards so they do it to prevent outbreaks of waterborne diseases.

[-] XTornado@lemmy.ml 1 points 5 months ago

Ah ok. Isn't that super common? Or they put very high levels where you are?

[-] echutaa@programming.dev 1 points 5 months ago

I think it is pretty common, they definitely push the limits on what should be used in my area. Last year I used tap run through a sediment and 2 carbon blocks to fill a small pond and the ammonia levels through that were above 10mg/l, I didn’t bother diluting to get the actual level since that’s already exceptionally toxic for anything with aquatic animals.

[-] thefartographer@lemm.ee 5 points 5 months ago

Forbidden flavor crystals

[-] yokonzo@lemmy.world 11 points 5 months ago

True, i do like that this article is very clear this is not a fix all solution. What's important is that we've learned a bit more to build our knowledge off next time

[-] yumpsuit@lemmy.world 2 points 5 months ago

On the bright side, you can make a fun piece of chalk with jawbreaker-style color flecks that can be used to draw a forensic outline around your carcass after the DuPont sponsored social murder.

[-] Syringe@lemmy.world 55 points 5 months ago

Holy shit!! This is great news. Hey - if we just raise temperatures globally, that could solve our micro plastics problem. Now... How do we get the ball rolling on this new "global warming" idea?

[-] Plopp@lemmy.world 7 points 5 months ago

Ahh, as someone who dislikes winter and cold, I look forward to seeing the oceans boil.

[-] DragonTypeWyvern@literature.cafe 27 points 5 months ago

As long as the plastic manufacturers pay for it.

That's going to happen, right?

...

Right?

[-] AtariDump@lemmy.world 0 points 5 months ago

Reads like a four panel annakin meme.

[-] Smoogs@lemmy.world 23 points 5 months ago

So basically it doesn’t really work on all the plastics and you have to have hard water for encapsulating the plastic with minerals for it to work.

[-] thefartographer@lemm.ee 7 points 5 months ago

Would you look at that! We're on the path to a self-solving problem! Once global warming causes the oceans to boil, all the microplastics will bind to the calcium! We'd have to rename the oceans "cioppino" cuz of all the cooked marine animals, but also we'd be dead, so win-win?

[-] TastyWheat@lemmy.world 3 points 5 months ago

I mean the ocean is just a giant soup anyway since it has meat, veggies and seasoning.... why NOT boil it?

Oh yeah we'd all die

[-] thefartographer@lemm.ee 1 points 5 months ago

Death by soupification

[-] BrightCandle@lemmy.world 7 points 5 months ago

I wonder how effective the standard small filters are against microplastics? I had assumed they likely dealt with a lot of the problem already but I suspect a Zerowater big filter is very effective against microplastics given it removes all dissolved solids. It is at least a personal solution to reduce the impact of microplastics in drinking water but its not going to solve it coming in every food.

[-] ArgentRaven@lemmy.world 8 points 5 months ago

I wonder as well. My filter is made of plastic, and my water lines are plastic. Sometimes my cup is plastic. Do I get more micro plastics after the filtration process?

[-] pixeltree@lemmy.blahaj.zone 2 points 5 months ago

Of course, unreacted monomers are present in all plastic. It's a question of how many and how harmful they are.

[-] CraigeryTheKid@lemm.ee 1 points 5 months ago

I was also thinking similar, does puttingan RO system for just the drinking water solve this?

[-] Shard@lemmy.world 1 points 5 months ago

Yes most definitely.

Micro plastics are defined as plastic sizes from 5mm down to 1.6 Microns.

A typical consumer grade RO can easily filter down to 0.001 Microns. Which not only removes micro plastics but almost all bacteria and viruses as well.

[-] fruitycoder@sh.itjust.works 4 points 5 months ago

I'm not sure if there is an effective solution on small scales with reducing the inputs (like buying bottled water to add calcifers and boil is an huge waste of effort to me) but on larger scales this could be useful before introducing water into a water system or activity fighting micro plastic build up in bodies of water conducive to this.

[-] m3t00@lemmy.world 1 points 5 months ago

wondering how this would work in solar/uv heating in existing treatment systems

[-] BilboBargains@lemmy.world -5 points 5 months ago* (last edited 5 months ago)

I like the taste of micro plastic. Is there a way I can get the rich flavour of my plastic without getting cancer?

[-] brettvitaz@programming.dev 2 points 5 months ago* (last edited 5 months ago)

Buy a 3d printer. You’re getting cancer regardless

this post was submitted on 01 Mar 2024
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