In Lima, A Billboard That Provides Water
The second-largest desert city also has exceptionally high levels of humidity, which the billboard converts into water that citizens can access via a simple spigot.
Kecia Lynn has worked as a technical writer, editor, software developer, arts administrator, summer camp director, and television host. A graduate of Case Western Reserve University and the Iowa Writers' Workshop, she is currently living in Iowa City and working on her first novel.
What's the Latest Development?
Researchers in Peru have come up with an ingenious solution to the challenge of providing drinking water to citizens living in the capital city of Lima: A billboard that uses a reverse osmosis system to "squeeze" humid air and deliver water through a spigot. The system works when air moves through, in order, "air filters, a vapor condenser, [and] a carbon filter" and ends up as water in a cold tank. The billboard is the brainchild of Universidad de Ingeniería & Tecnología (UTEC) researchers and ad agency Mayo Publicidad, and has so far produced approximately 25 gallons of fresh water a day.
What's the Big Idea?
With 7.6 million residents, Lima is the second-largest city in the world located in a desert, and although it experiences an extraordinary amount of humidity, it only gets about 1.1 inches of rain a year. Most of the drinking water comes from wells, and according to a man interviewed in a promotional video, it's not as good as the water produced by the billboard. "They could put this [billboard] in different places...if possible in each village, in each town," he says.
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