净水之书.doc

净水之书
在水污染越来越严重的今天,能否喝上洁净的水是一个严峻的问题。与此同时,净水工序之复杂,造价之高,又远非普通民众所能承受。幸而,科学家们研制出了一种神奇的净水设备,它有着书的构造,更有着净水的功效。
In developing countries, clean drinking water is not a given1). According to the World anization, every year around million people die from water-related illnesses. Accessing clean water often means waiting in line for a truck to haul it to you, boiling it (an energy-hungry option) or running it through a ceramic2) filter (expensive). But the truth is, more often than not people don't clean it at all.
A new project from the Water Is anization is looking to simplify the purification process with a high-design solution. The Drinkable Book, as it's called, looks like something you'd keep on your coffee table, but it's actually a full-on3) water purification system.
Each page is its own little filter that can clean up to 100 liters of water (that's around a 30-day supply). This means each book can provide a single person with up to four years of clean water. Researchers at Ca
rnegie Mellon and the University of Virginia developed a special kind of paper that's coated in silver nanoparticles4), which kill bacteria. "Some socks use silver nanoparticles to prevent fungus5) from growing on athletes' feet," explains chemist Theresa Dankovich, the project's lead scientist who has been researching this process since 2008.
The Drinkable Book isn't a water filter, exactl