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Nano Water Filter
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Summary
At least one billion people in the world lack access to clean water. Researchers at Stanford university are creating a filter which they hope will be able to allow these people to avoid the illnesses contracted from drinking or utilizing contaminated water. A filter is needed that will rapidly clean the water, and not require a lot of power to use. A filter is created by combining two inks. One ink consists of carbon nanotubes in water, and the other is nanowire ink in methanol. It is a two step process. The ink is applied onto a fabric, which deposits nanotubes onto the fabric. It has great electrical resistivity at this point. Then the nanowire ink is applied. The filter is then rolled into a glass funnel, and electrodes are connected to it. Only about 20 volts are needed. The water is poured through this device, and pure water drips out the other end.
Keywords: nano water filter, Stanford University, David Schoen, rapidly killing bacteria
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