Google Play icon

Clean water—Sunny desalination

Share
Posted August 2, 2019

A new method developed at Oak Ridge National Laboratory improves the energy efficiency of a desalination process known as solar-thermal evaporation.

Image credit: ORNL

Scientists fashioned tubular devices using nanoengineered graphite foam coated with carbon nanoparticles and a superhydrophobic material that increased the absorption of light energy directly from the sun. The thermal energy was used to heat seawater, producing freshwater vapor that was fed into a condenser to make potable water. The system removed more than 99.5% of salt in simulated seawater and reached 64% solar-thermal conversion efficiency.

“Using this improved solar-absorbing material for interfacial water evaporation represents a more efficient use of solar energy,” said ORNL’s Gyoung Jang. The experiment is detailed in the journal Global Challenges. The method can be scaled up into modular systems to provide clean water at remote locations or to serve communities affected by hurricanes or floods.

Source: ORNL

Featured news from related categories:

Technology Org App
Google Play icon
86,178 science & technology articles

Most Popular Articles

  1. Scientists Reverse Dementia in Mice with Anti Inflammatory Drugs (December 5, 2019)
  2. NASA Scientists Confirm Water Vapor on Europa (November 19, 2019)
  3. How Do We Colonize Ceres? (November 21, 2019)
  4. Toyota Raize a new cool compact SUV that we will not see in this part of the world (November 24, 2019)
  5. Universe is a Sphere and Not Flat After All According to a New Research (November 7, 2019)

Follow us

Facebook   Twitter   Pinterest   Tumblr   RSS   Newsletter via Email