For thousands of years, people in the Middle East and South America have extracted water from the air to help sustain their populations. Drawing inspiration from those examples, researchers are now developing a lightweight, battery-powered freshwater harvester that could someday take as much as 10 gallons per hour from the air, even in arid locations. They say their nanofiber-based method could help address modern water shortages due to climate change, industrial pollution, droughts and groundwater depletion.
The researchers will present their results today at the 256th National Meeting & Exposition of the American Chemical Society (ACS). ACS, the world’s largest scientific society, is holding the meeting here through Thursday. It features more than 10,000 presentations on a wide range of science topics.
“I was visiting China, which has a freshwater scarcity problem. There’s investment in wastewater treatment, but I thought that effort alone was inadequate,” Shing-Chung (Josh) Wong, Ph.D., says. Instead of relying on treated wastewater, Wong thought it might be more prudent to develop a new type of water harvester that could take advantage of the abundant water particles in the atmosphere.
Read more at American Chemical Society