Eliminating arsenic from drinking water

An iron-rich, porous material can remove arsenic from drinking water in under two hours, say Chinese scientists. 

Arsenic is notoriously toxic, proving fatal to the majority of living organisms in high doses. Elevated levels of arsenic in groundwater in countries such as Bangladesh pose a serious threat to human health. But traditional methods to remove the arsenic struggle to eliminate the more dominant arsenic ion, arsenite.  More...

http://www.rsc.org/chemistryworld/News/2011/January/28011101.asp