Researchers have created an ingeniously designed recycled water still that can purify water for under $0.01 per liter.
Imagine a device that not only purifies water but also recycles waste, all at an affordable price. Researchers at Dalhousie University in Canada have made this a reality, creating a water purifier that costs just a few cents per liter and is crafted from discarded tires. This recycled water still tackles two major environmental challenges: water scarcity and waste management. Access to safe drinking water is a global challenge.
What makes this device unique is its cost-effectiveness. Unlike other purifiers that rely on expensive metals, this purifier uses old tires. They still rely on pyrolysis—a process that heats tires without oxygen to produce a carbon-rich material—which converts the tires into a light-absorbing layer. When combined with titanium carbides, the material efficiently captures solar energy that can warm and evaporate water, providing the recycled water still with an affordable power supply.
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