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[NBC News] Weapons maker finds cheap way to get clean water - Page 3

post #21 of 38
But how difficult is it to manufacture large scale graphene filters to any substantial degree. Not like we are talking coffee filters here.

So the pump station is much smaller/cheaper, but the filters may be prohibitively expensive.


Edit* Even states in the article that they have not figured out manufacturing details, etc.
Edited by Biorganic - 3/21/13 at 7:51am
 
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post #22 of 38
Quote:
Originally Posted by Biorganic View Post

Edit* Even states in the article that they have not figured out manufacturing details, etc. Stupid comment on electron microscopy, you cannot see atomic structure even with an e- microscope, article FAIL.
Yeah, I thought that sounded a little far fetched. electron microscopes only have an accuracy of something like 10^-10m.
post #23 of 38
Quote:
Originally Posted by Bit_reaper View Post

I can do it as well as wikipedia can
In addition pencil lead is not just graphite but has a clay in it as well among other minor substances. But the main thing is that graphite is not a single sheet but a bunch of small overlapping patches. This is what gives graphite its slippery quality as the patches easily glide over another.

All i can think of is the intro to "The Pacific"...
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post #24 of 38
Thread Starter 
Quote:
Originally Posted by Biorganic View Post

But how difficult is it to manufacture large scale graphene filters to any substantial degree. Not like we are talking coffee filters here.

So the pump station is much smaller/cheaper, but the filters may be prohibitively expensive.


Edit* Even states in the article that they have not figured out manufacturing details, etc.

Not sure how this is a fail article. I mean they might not be ready to go to production, but if where they're at is such a simple task why aren't others there? This could be a huge market, a lot of money to be made here. They are talking about having a prototype ready by the end of the year, with production possibly beginning in the next two years. Not sure how you can be so dismissive of this. Also, from the sounds of it, the O&M costs of the station are going to be substantially cheaper, so even if the initial cost is expensive, the increased efficiency is going to give the station operators a much lower cost over the lifetime of the station. I'm sure Lockheed would be willing to accept payments over a period of time and not one up-front lump sum, especially if they're the only ones who have the know-how and the ability to produce thumb.gif

Quote:
Originally Posted by Art Vanelay View Post

Yeah, I thought that sounded a little far fetched. electron microscopes only have an accuracy of something like 10^-10m.

wth.gif So you know the production of this sounds far fetched, and you know the accuracy of electron microscopes, but have zero idea what reverse osmosis is, or what Gatorade does to your body? poke.gif Wikipedia pro right here apparently, only you forgot to wikipedia the later two... doh.gif
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post #25 of 38
Quote:
Originally Posted by Art Vanelay View Post

Reverse osmosis is a thing?

Yes. It's one of the major methods of cleaning water, along with distillation.

I used to have a reverse osmosis filter to make my very hard well water potable at my old place.
Quote:
Originally Posted by Emmanuel View Post

Lol don't they teach what reverse osmosis is in high school in Canada?

Because schools don't teach much.
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post #26 of 38
Quote:
Originally Posted by b3machi7ke View Post

Quote:
Originally Posted by Biorganic View Post

But how difficult is it to manufacture large scale graphene filters to any substantial degree. Not like we are talking coffee filters here.

So the pump station is much smaller/cheaper, but the filters may be prohibitively expensive.


Edit* Even states in the article that they have not figured out manufacturing details, etc.

Not sure how this is a fail article. I mean they might not be ready to go to production, but if where they're at is such a simple task why aren't others there? This could be a huge market, a lot of money to be made here. They are talking about having a prototype ready by the end of the year, with production possibly beginning in the next two years. Not sure how you can be so dismissive of this. Also, from the sounds of it, the O&M costs of the station are going to be substantially cheaper, so even if the initial cost is expensive, the increased efficiency is going to give the station operators a much lower cost over the lifetime of the station. I'm sure Lockheed would be willing to accept payments over a period of time and not one up-front lump sum, especially if they're the only ones who have the know-how and the ability to produce thumb.gif

I was referring to the issue of the electron microscope part. Not the validity of the entire technology. When did I imply making a single atom layer sheet of graphene was trivial in its simplicity? I know a pretty decent amount about chemistry/synthetic methods, and this sounds very difficult to me. I also did not dismiss the tech, there are hurdles however. I am glad somebody is working on it as I have felt fresh water needs to be a much higher priority than it is. I see prices for H2O going much higher in the next 20 years.

Also, imo if the countries would focus on clean and cheap power (nuclear) then even traditional reverse osmosis plants would be feasible. Just couple the plants in close proximity to the reactors. Why aren't we building nuclear plants by the hundreds???? LFTR(liquid fluorine thorium reactor), more safe and more efficient. Why do we still use light water reactors?
 
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post #27 of 38
Thread Starter 
Quote:
Originally Posted by Biorganic View Post

I was referring to the issue of the electron microscope part. Not the validity of the entire technology. When did I imply making a single atom layer sheet of graphene was trivial in its simplicity? I know a pretty decent amount about chemistry/synthetic methods, and this sounds very difficult to me. I also did not dismiss the tech, there are hurdles however. I am glad somebody is working on it as I have felt fresh water needs to be a much higher priority than it is. I see prices for H2O going much higher in the next 20 years.

Also, imo if the countries would focus on clean and cheap power (nuclear) then even traditional reverse osmosis plants would be feasible. Just couple the plants in close proximity to the reactors. Why aren't we building nuclear plants by the hundreds???? LFTR(liquid fluorine thorium reactor), more safe and more efficient. Why do we still use light water reactors?

My apologies, I thought you meant the article was a fail (and by extension the idea) because they haven't developed a manufacturing process. I'm not sure how I misinterpreted/misread that, especially going back over and reading it you made your point clear, so again apologies...

I'm glad you mentioned thorium reactors, those would be nice to see at some point. I think this is more likely than either nuclear or thorium though, due to the (IMO) cheaper initial and O&M costs than either of those, and honestly it's a heck of a lot safer than nuclear in case something goes wrong.
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post #28 of 38
Quote:
Originally Posted by b3machi7ke View Post

wth.gif So you know the production of this sounds far fetched, and you know the accuracy of electron microscopes, but have zero idea what reverse osmosis is, or what Gatorade does to your body? poke.gif Wikipedia pro right here apparently, only you forgot to wikipedia the later two... doh.gif
I never bothered to look any of that stuff up on Wikipedia. I learned how electron microscopes worked one time and have a talent for remembering random numbers for a long time.
post #29 of 38
Quote:
Originally Posted by b3machi7ke View Post


My apologies, I thought you meant the article was a fail (and by extension the idea) because they haven't developed a manufacturing process. I'm not sure how I misinterpreted/misread that, especially going back over and reading it you made your point clear, so again apologies...

I'm glad you mentioned thorium reactors, those would be nice to see at some point. I think this is more likely than either nuclear or thorium though, due to the (IMO) cheaper initial and O&M costs than either of those, and honestly it's a heck of a lot safer than nuclear in case something goes wrong.

All good man, no harm no foul. biggrin.gif

Not to stray too far off topic, but you should look into the safety benefits of the LFTR. There are some videos by Kirk Sorenson that explain better than i can. They are much much safer than a traditional light water reactor.
 
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post #30 of 38
Thought weapon manufacturers were looking into water scarcity as their new excuse to fight i.e. sell weapons - ala oil. rolleyes.gif

Putting on my tin hat, something is "fishy" with this water deal biggrin.gif

At any rate, let Lockheed exclusively patent this thing, so that we make sure water will be scarce before 2040.
You could call it a "future investment"
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