Water purification is generally an energy-intensive, wasteful operation, but designers Alberto Medo and Francisco Gomez Paz have done a neat end-run around those problems with their Solar Bottle, a portable water bottle that purifies water using the sun. The bottle, which holds just over a gallon of water, uses a purification process called SODIS that takes six hours to kill off a whole host of baddies, including Oregon Trail favorites cholera, typhoid and dysentery. Just a concept for now, but the design has been well-received and won several awards, so hopefully someone will step up and take it into production soon.
Solar Bottle solar-powered water purification bottle kills germs dead
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