Making Salt Water Drinkable Just Got 99 Percent Easier
1–10 of 23 posts
Re: Making Salt Water Drinkable Just Got 99 Percent Easier
#2This is from 2013. Anyone come across recent development from it?
Re: Making Salt Water Drinkable Just Got 99 Percent Easier
#3When I search to find the minimum energy cost of separating the salt and water based on entropy, I find this article:
http://arstechnica.com/science/2011/08/desalinization-is-thi...
> A state-of-the-art facility is now within a factor of two of the theoretical energy minimum
> The total process of desalination turns out to require three to four times the theoretical minimal energy use, since the salt water must be pumped and pretreated, the membranes maintained, and the resulting brine handled afterwards.
Somebody is not being very honest.
Re: Making Salt Water Drinkable Just Got 99 Percent Easier
#4When I search to find the minimum energy cost of separating the salt and water based on entropy, I find this article: http://arstechnica.com/science/2011/08/desalinization-is-thi... > A state-of-the-art facility is now within a factor of two of the theoretical energy minimum > The total process of desalination turns out to require three to four times the theoretical minimal energy use, since the salt water must be pu…
ELI5? are you saying lockheed took this from someone else?
Re: Making Salt Water Drinkable Just Got 99 Percent Easier
#5When I search to find the minimum energy cost of separating the salt and water based on entropy, I find this article: http://arstechnica.com/science/2011/08/desalinization-is-thi... > A state-of-the-art facility is now within a factor of two of the theoretical energy minimum > The total process of desalination turns out to require three to four times the theoretical minimal energy use, since the salt water must be pu…
ELI5? are you saying lockheed took this from someone else?
No, they're claiming that Lockheed is lying about the efficiency gains their technology can or will produce. Specifically that Lockheed's claims are impossible (that assumes the referenced theoretical calculations on energy requirements are correct in the first place).
Re: Making Salt Water Drinkable Just Got 99 Percent Easier
#6This is from 2013. Anyone come across recent development from it?
http://www.reuters.com/article/us-lockheed-martin-graphene-i...
I have a feeling this is very much like their announcement of commercial fusion power.
Re: Making Salt Water Drinkable Just Got 99 Percent Easier
#7When I search to find the minimum energy cost of separating the salt and water based on entropy, I find this article: http://arstechnica.com/science/2011/08/desalinization-is-thi... > A state-of-the-art facility is now within a factor of two of the theoretical energy minimum > The total process of desalination turns out to require three to four times the theoretical minimal energy use, since the salt water must be pu…
ELI5? are you saying lockheed took this from someone else?
I think the point is that if you're a factor 2 or 4 away from the theoretical optimal efficiency, you can't make it a factor 100 easier, as this article claims. The best you can do is to reach the theoretical optimum.
Re: Making Salt Water Drinkable Just Got 99 Percent Easier
#8Seems like the most obvious next step for someone interested in the research would be just to contact the research lead directly:
Re: Making Salt Water Drinkable Just Got 99 Percent Easier
#9Re: Making Salt Water Drinkable Just Got 99 Percent Easier
#10Yeah, yeah, we know, graphene can cure all the world's problems.