Archive for June 1, 2017

Graphene membrane separates the salt from the seawater

Water may cover the majority of the planet’s surface, but thanks to a huge helping of salt, it’s hard to tap into as a source of drinking water. Once again, graphene could come to the rescue. Researchers at the University of Manchester have developed a graphene-oxide membrane with a scalable, uniform pore size that can filter out even the smallest salts, without affecting the flow of water too much.

Desalination plants already use a variety of techniques to produce safe drinking water, including shocking the salt and water into separating, using salt-attracting membranes, or harnessing the power of ocean waves to purify water and pump it back to shore. Graphene has already lent a hand before, too, acting like a big sponge that sits on the water’s surface, drawing water up through it and cleaning it in the process. Read more