Cheap and effective water filter - Pine

[Engineer]

http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0089934;jsessionid=CA64751E06B0751293DAA9ED22EE02D7

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 cm^3 of sapwood can filter water at the rate of several liters per day, sufficient to meet the clean drinking water needs of one person.

[johnbrickner]

It just doesn't get a whole lot better than that!

[Hawkeye]

That is awesome. I'm going to have to look into this a little more - sounds interesting.

[johnbrickner]

I thought you'd have a comment on this, Treetop?