From the top left corner, moving clockwise, the four images depict: University at Buffalo students performing an experiment, clean drinking water, water evaporating, and black carbon wrapped around plastic in water with evaporated vapor on top evaporated water. Credit: University at Buffalo.
You’ve seen Bear Grylls turn foul water into drinking water with little more than sunlight and plastic. Now, academics have added a third element—carbon-dipped paper—that may turn this survival tactic into a highly efficient and inexpensive way to turn saltwater and contaminated water into potable water. The idea could help address global drinking water shortages, especially in developing areas and regions affected by natural disasters.
“Using extremely low-cost materials, we have been able to crea...
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