sap wood water filters
As reported in a paper published yesterday on PLOS One, MIT researchers ran contaminated water through a sapwood branch and found that the plant tissue successfully filtered experimental dye and actual bacteria out of the mix. The filter required only a fresh branch of white pine and some cheap plastic tubing—simplicity that could be ideal in remote villages or emergency situations.
Inexpensive, disposable filters could bring clean water to millions of people in developing nations. the filter might also help stranded hikers distill clean water in emergency situations. "pine is so common just cutting off a branch and using it as a filter would be fairly straightforward," he says.
Reply With Quote
