Just saw this on The Register about a new way to purify water using crushed seeds of the drumstick tree. It would seem that you would still need to boil afterwards but still looks like a great method when you don't have a water filter.
See links
http://www.theregister.co.uk/2010/03/04/moringa_tree_knowledge_is_free/
and for the direct link to the free paper
http://mrw.interscience.wiley.com/emrw/9780471729259/cp/cpmc/article/mc01g02/current/abstract
Do we know of any other plants that do the same thing?
cheers
JBTH
See links
http://www.theregister.co.uk/2010/03/04/moringa_tree_knowledge_is_free/
and for the direct link to the free paper
http://mrw.interscience.wiley.com/emrw/9780471729259/cp/cpmc/article/mc01g02/current/abstract
Do we know of any other plants that do the same thing?
cheers
JBTH