Bug-killing book pages clean murky drinking water

[simonwheeler]

A book with pages that can be torn out to filter drinking water has proved effective in its first field trials.
The "drinkable book" combines treated paper with printed information on how and why water should be filtered.
Its pages contain nanoparticles of silver or copper, which kill bacteria in the water as it passes through.
In trials at 25 contaminated water sources in South Africa, Ghana and Bangladesh, the paper successfully removed more than 99% of bacteria.

As reported on the BBC News website

[Helen-Healing]

Extraordinary.
But they're going to have to produce a book with bigger pages than those in the illustration!