Douglas fir wood can be turned into a water filter
Janet Horton / Alamy Stock Photo
Slices of wood can act as water filters that remove bacteria and microplastics with more than 99 per cent efficiency, potentially offering a cheap way to protect people from water-borne illnesses.
Previous research has investigated more complex methods to make wooden filters involving complex chemical treatments, but these would be impractical in lower-income countries where water-borne illnesses cause hundreds of thousands of deaths a year, say Antoni Sánchez-Ferrer and Jenifer Guerrero Parra at the Technical University of Munich, Germany.
source: https://www.newscientist.com/article/2474988-slices-of-wood-can-filter-bacteria-and-microplastics-from-water/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=technology
