Plant-based filter removes up to 99.9% of microplastics from water
Researchers may have found an effective, green way to remove microplastics from our water using readily available plant materials. Their device was found to capture up to 99.9% of a wide variety of microplastics known to pose a health risk to humans.
In case anyone wasn't clear, this is for drinking water/waste water systems. Not for cleaning up the ocean.
This sounds like a great, renewable, filter material that can be added (or replace existing filters) to a municipal water treatment plant. There's serious issues with microplastics getting into drinking water, and this could certainly help with that.
So normal filters don't remove micro plastic?
RO removes up to 99% of microplastics. Ceramic water filters, water distillation, and nanofiltration also remove microplastics.
A couple links on microplastic removal:
Microplastics removal strategies: A step toward finding the solution
https://link.springer.com/article/10.1007/s11783-021-1441-3
Removal of microplastics via drinking water treatment: Current knowledge and future directions
https://pubmed.ncbi.nlm.nih.gov/32443234/
Microplastics removal through water treatment plants: Its feasibility, efficiency, future prospects and enhancement by proper waste management
https://www.sciencedirect.com/science/article/pii/S2667010021002432
And then put it where?
While I think this is a perfectly valid follow-up question, even if the "solution" is to bury it (with safeguards such as not able to get into groundwater), that's better than it being in the drinking water. Short term at least.
Considering how early this research is, it's also possible they wanted to know their filter works before solving disposal. And, while not explicit, it sounds like this is meant to replace existing filters that themselves use plastic, so this could be a net gain even if disposed in the exact same manner as the original filters however that may be.
If we can take it away from our water and trap it in plant material, I think it would be better off.
Some one else's water.
And then put it where?
Macroplastics?
People in this thread are looking for complicated answers. But the best thing to do with sawdust, plant matter and a tiny bit of micro plastics seems to me also to just burn it.
Let plastic-eating microbes dissolve it.
Now someone tell me why this will never become a thing… like all other good news.
As always with most things in our capitalist society, it's better for shareholders if general population injests microplastics than for them to spend money on products to prevent it. Capitalism only spends money on things that bring profit, not to make a world a better place. If while making that profit the world becomes a better place, that's a marketing win.
If this can be commercialized into an at-home filter that's easy to install and use, you can absolutely bet that this would be advertised to hell and back and make a fuckton of money from people convinced of the absolute need to filter out microplastics.
Of course, no direct adverse health effects have ever been proved from them, but wouldn't you pay $30 for a filter, just in case? I guarantee you millions of people would.
The shareholders don't want you to become living plastic; they want you to buy shit, and this is a very obvious product that would make a lot of money.
This tech is literally trash bathed in leaf sauce. Even if someone would patent it it's like you tried to patent a herbal tea - yea, you may try and maybe win, but every farmer and their mom will brew one themselves from loosely scattered weeds.
So after a short thought it means it's going to be a massive, profitable venture for someone, because people are actually dumb enough to pay tens of $ for a handful of sawdust and reasonably pure tannic acid if it comes with a fancy cap and in a gray cardboard box.
Just find a weapons system use-case for this product
The plants are poison
Sounds like a great stop gap measure to benefit humans. My concern will be that, once WE are no longer drinking microplastics, we'll forget that everyone else is. But meanwhile, Brita? How soon can you add this to your filters?
That’s crazy that it’s just sawdust and tannic acid! I bet these scientists tried a lot of more complex recipes before they found this one.
