Voice of America: Students Invent Water Purification Disc

Voice of America Voice of America is an international news and broadcast organization serving Central and Eastern Europe, the Caucasus, Central Asia, Russia, the Middle East and Balkan countries

Students Invent Water Purification Disc Jun 11th 2013, 23:20 Students at the University of Virginia have developed a new way of purifying water that they say could bring improved water quality for millions in the developing world.  It's called a Madi Drop. Field testing begins this month in South Africa. The lab operates like a kitchen. They add several ingredients. Then they mix, weigh, press and bake them. What's created is called a MadiDrop - a ceramic disc infused with silver. When dropped in water, silver ions, which are atoms ... Media files: 50B5376E-0F01-47CD-90B8-7A3E8699CA8B_cx0_cy0_cw0_w800_r1.jpg (image/jpeg, 0 MB)

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