Read the info at this link:
https://techxplore.com/news/2022-05-treatment-efficiently-nanoplastics.html
From the article: “Both in laboratory tests and in a larger test facility located directly on the premises of the Zurich Water Works, the biologically active slow sand filter was the most effective at retaining nanoparticles—achieving an efficacy level in the region of 99.9%.”
This is super important news. Nanoplastics are horrific poisons that are in water all over the world.
This information is from: The website “techxplore”;
“Water treatment efficiently removes nanoplastics
by Swiss Federal Institute of Aquatic Science and Technology
More information: Gerardo Pulido-Reyes et al, Nanoplastics removal during drinking water treatment: Laboratory- and pilot-scale experiments and modeling, Journal of Hazardous Materials (2022). DOI: 10.1016/j.jhazmat.2022.129011Journal information:Journal of Hazardous Materials Provided by Swiss Federal Institute of Aquatic Science and Technology”
Update: More news about nanoplasctics removal by biological slow sand water filters here: (this article references the Journal of Hazardous Materials also.
https://newatlas.com/environment/slow-sand-filter-nanoplastics-drinking-water/