On 26-Jul-13 12:16 PM, Udhay Shankar N wrote: > Another water purification tidbit: > > http://www.fastcoexist.com/1682625/turn-your-waterbottle-into-a-brita-with-this-coconut-filter > > > Turn Your Waterbottle Into A Brita With This Coconut Filter
And another: http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0089934 Open Access Peer-Reviewed Research Article Water Filtration Using Plant Xylem Published: February 26, 2014 DOI: 10.1371/journal.pone.0089934 Abstract Effective point-of-use devices for providing safe drinking water are urgently needed to reduce the global burden of waterborne disease. Here we show that plant xylem from the sapwood of coniferous trees – a readily available, inexpensive, biodegradable, and disposable material – can remove bacteria from water by simple pressure-driven filtration. Approximately 3 cm3 of sapwood can filter water at the rate of several liters per day, sufficient to meet the clean drinking water needs of one person. The results demonstrate the potential of plant xylem to address the need for pathogen-free drinking water in developing countries and resource-limited settings. <snip> -- ((Udhay Shankar N)) ((udhay @ pobox.com)) ((www.digeratus.com))
