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Interesting: 10 Uses for Graphene.
I wonder how much it will lower the costs of desalination?
From what I understand, Israel has it down to 50 cents for 1,000 litres.
Carbon has been in use for water treatments with evidence found dating back to the Harappan civilization. The latest technologies involve ultrafiltration (UF), reverse osmosis (RO), and desalination methods. Carbon is also an essential component in all the water treatments available today in the form of graphene.
Just a flippin minute here! Carbon is a pollutant. Is someone trying to have it both ways, or is reality finally coming back into favor?
50 years ago when I was in Vietnam, I was impressed by the fact that they used 2 water systems. Potable water for drinking and cooking and filtered only water for everything else. It’s just too expensive to use drinking water for everything. Gotta admit though, it took a while to get used to an extra spigot on the sink (hot, cold & potable).
We have a door knocking, water product/testing company in the area that is discovering radon gas, in several neighbors’ well water samples. They just happen to have a whole house carbon filter system that they sell, that fixes it...
Biggles’s Chewing gum NOW WITH GRAPHENE !!!!
Latest buzzword - not really a solution for everything (we have heard lots of claims over the last century for so many whizzbang things that didnt pan out ...)
Needs more information that the graphene (electrical properties, large surface area property, structural property ? ) How this will *IMPROVE* water filtration systems ?
Old activated charcoal filters opened binding points on the carbon atoms (and had tiny granules for max surface area). Graphene is a 2 dimensional carbon matrix - if you start ‘activating’ it you destroy its structure. So it sounds like it is some other mechanism to be employed for its filtration effect - electrostatic attraction ?? (charged surface perhaps like in many fancy air filters) - which though only works on certain types of pollutants.
SO another incremental advancement which probably will require other process improvements (like mass graphene production) to make it viable for mass use.
Mass production of graphene - not so good yet - water filters will use alot
Callaway has come out with golf balls with graphene in them. Too expensive for me but an extra ten or so yards off the tee would be helpful.
It ain't there yet.
Thank you for this. I posted on this back about 5 years ago on social media, commenting then that if we could get the tech right, it would make the greatest progress for humanity since discovery that sterilization of instruments halts disease.
Potable water could be the greatest blessing for huge swathes of population in third world countries that one could imagine.
I am very excited about graphene for desalination.
Thank you again for posting this.
Used to make trickling filters and we got 90% BOD removal with recirculatign. It was low energy effective treatment and perfect for the developing world where essentially no sewage is even collected let alone treated. High tech things like reverse osmosis are for the highly developed societies who can maintain them.
Where clean water is needed, they need stable governments that cam do simple things first. The technology is already here.
This is the graphene ping list.
Click Private Reply below to join or leave this list.
Interesting: 10 Uses for Graphene.
Not peeing and pooing in it should be #1.