Imagine a book that has pages you can tear out and use to turn raw sewage into drinking water. Each page is implanted with silver or copper nanoparticles that kill bacteria when water passes through them. And each page is printed with a message in your local language: “The water in your village may contain deadly diseases. But each page of this book is a paper water filter that will make it safe to drink.”
That’s exactly what one postdoctoral researcher at Carnegie Mellon University says she’s created. She calls it the “drinkable book.”
“I originally starting working on it to help the environment — by using greener chemistry, and it’s evolved to have the noble goal of helping others,” Theresa Dankovich, who has been working on the product over the past several years, told The Washington Post in an e-mail.
https://www.washingtonpost.com/news/morning-mix/wp/2015/08/19/drinkable-book-filters-filthy-water-and-makes-it-safe-to-drink-researchers-say/?utm_term=.67f9e045de89