We all know the adage of turning lemons into lemonade. But have you
heard the one about the billboard that turned polluted desert air into
drinkable water?
Lima, Peru, is the second biggest capital in the world located
in a desert. Raindrops are few and far between. The city gets less than
an inch a year, forcing many residents to get their water from less than
desirable places, such as dirty wells.
However, Lima’s humidity is around 98 percent, so the University of Engineering and Technology (UTEC) teamed up with ad agency Mayo Publicidad
to create a billboard that harvests moisture in the air and converts it
into purified water that locals can tap at the base of the billboard.
The air goes through a series of five machines inside the
billboard, including an air filter, a condenser and a carbon filter, and
finally collects in a pipe leading to the foot of the structure. The
billboard is expected to generate upwards of 25 galllons (96 liters) of
water per day for the neighboring community.
For the rest of the story: http://news.discovery.com/tech/biotechnology/billboard-converts-desert-air-into-drinking-water-130224.htm#mkcpgn=rssnws1
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