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Saturday, February 17th, 2018

Graphene filter makes even Sydney Harbour water drinkable

Author:     Michael Irving
Source:     New Atlas
Publication Date:     February 15th, 2018
 Link: Graphene filter makes even Sydney Harbour water drinkable
Stephan:   Here, potentially, is an Australian solution to the rebuilding of American water infrastructure. I particular note this technology because it is a proof of the Wellness Theorem. It is cheaper, more efficient, more effective, and Graphair  is made from an inexpensive and renewable material, soybean oil. We will learn a lot by how the technology develops and whether it is adopted in the U.S..

Dong Han Seo, of the CSIRO, holds a flask of water taken from Sydney Harbour, which has been purified to a drinkable standard thanks to a graphene-based filter
Credit: CSIRO

Among graphene’s long list of superpowers, filtering water may be one of the most directly beneficial. Now a team of Australian scientists has demonstrated how effective a specially-designed form of graphene can be at purifying water with a pretty challenging test: the filter made water from Sydney Harbour safe to drink in one step.

As well as being extremely strong and an excellent conductor of heat and electricity, graphene has proven itself to be an effective water filter. These devices could take the form of biofilm sheets floating on top of dirty or salty water, which absorb and purify the water. Other methods include a graphene-oxide membrane that can filter even the smallest salts out of water without impeding the flow.

The newest graphene water filter system was made using a form of the material dubbed “Graphair,” which was […]

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3 Comments

  1. Mark R on Saturday, February 17, 2018 at 7:19 am

    Amazing, thanks for this article.

  2. Tom Biel on Saturday, February 17, 2018 at 1:45 pm

    Wonderful! Small filter units should be made for family sized groups, towns, villages and large municipal systems. Cape Town, Flint Michigan and Puerto Rico would be a good places to start.

  3. Will on Sunday, February 18, 2018 at 8:49 am

    There are such amazingly creative, clever people in our world. The picture shows a scientist who appears to be Asian. This is the sort of person the US is determined to deny entry or deport…sad.