Did A Korean Research Team Just Find The "Holy Grail" Of Water Desalinization
Did A Korean Research Team Just Find The "Holy Grail" Of Water Desalinization
A new report from Interesting
Engineering seems to suggest that could be the case -
detailing a new nanofiber membrane, developed by Yunchul Woo and his
team at the Korea Institute of Civil Engineering and Building Technology, that
appears to be "stable in the long term" for desalinization. And it
can be done "in minutes", the report says.
Membranes had been used in the past, but there is often a
challenge in keeping them dry for long periods of time. When they become wet,
their filtration characteristics become ineffective and large amounts of salt
can pass through.
Woo's team has created a membrane "made of nanofibres that
have been fabricated into a three-dimensional hierarchical structure" by
using a technology called "electrospinning". This new membrane is
said to be highly water repellant.
Water from one side is heated and allows water vapor to pass through the membrane, which is then condensed on the other side. The process is called membrane distillation.
"Since the salt particles are not converted to the gaseous
state, they are left out on one side of the membrane, giving highly purified
water on the other side," the report says.
It also notes that the researchers used silica aerogel in
their membrane fabrication process.
Upon testing the technology for 30 days continuously, they found
the membrane filtered out 99.9% of salt without wetting problems.
Desalinization is the obvious answer to the global issue of over
785 million people lacking clean drinking water. Up until now, scientists have
been unable to figure out a quick, cost-efficient and effective way to turn
salt water into drinkable water.
Fresh water only accounts for 2.5% of the total water available
on Earth, the report notes.
https://www.zerohedge.com/markets/did-korean-research-team-just-find-holy-grail-water-desalinization
Comments
Post a Comment