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Created with Fabric.js 1.4.5 This water purifier looks just like an ordinary teabag. Created by researchers in South Africa, the bag can filter a liter per bag. It even costs less than a cent. The bag contains nothing toxic to humans, and also have no environmental impact.However, less than a cent might still be too expensive for some poor families that plan to use itdaily. The filter uses activated carbon and nano fibers to kill bacteria in the water. Nanotechnology Water Purifier Brought to you by:Professor Eugene Cloete at Stellenbosch University THE INVENTION PICTURE T H E P R O B L E M Families in Africa and other poor places can't always receiveclean water to drink. In fact, 750 million people don't have access to clean water. With inventions like these, people can buy their own water filters to use to drink river water safely. RISKS BENEFITS The small bags only filter a liter perbag, so some people may argue thatthe bag needs to be bigger if it everwill make a difference in the world. Also, some families with no money might not be able to afford these at all. For example, if a very poor family needs to get two of these,after buying a meal, they might nothave enough to buy the tea bag. This invention can filter some waterfor families that can afford it, andcan help the problem stated above, even if it can't solve it completely. This invention can be used easily.In a video, Professor Eugene Cloete demonstrates how the teabagcam be used. The video can be foundat the website below. If you're interested, demonstration is in this video: BIBLIOGRAPHY "Nanotech 'tea Bags' for Clean Drinking Water." SmartPlanet. N.p., n.d. Web. 11 Feb. 2015."Millions Lack Safe Water." Waterorg. N.p., n.d. Web. 11 Feb. 2015.Saenz, Aaron. "South African Nanotech 'Tea Bag' To Filter Water for Pennies." Singularity HUB. N.p., 15 Sept. 2010. Web. 12 Feb. 2015. FUN FACT: The inventioncosts about 3 african cents. Bringing clean water to people one step at a time. "What is new about this idea is the combination of inexpensive raw materials, namely activated carbon and antimicrobial nanofibres, in point-of-use water filter systems. " -Stellenbosch University Microbiology Researcher Marelize Botes Mikhail Melaku Period 2 Tea bag before and after use NOT SO FUN FACT: 358 million people in Africa alone don't have access to clean water.
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