• Turning the oceans into drinking water: Graphene can be made to be the best desalination filter ever
    40 replies, posted
[QUOTE=Chinook249;36677350]But then you're drinking chlorine :/ They have iodine ones but those taste bad. Then there's "ceramic filter" ones or something like that that are similar to this graphene stuff, but I've heard they're kind of dodgy... so I think Graphene's the way to go (but they haven't told us about the negatives or anything yet so IDK)[/QUOTE] Though it may taste terrible, I would prefer to have bad tasting healthy water than parasite-filled mud water in Africa. It may not be the best quality, but sometimes 'somewhat better' quality is all you can go with.
[QUOTE=Kondor58;36671879]Wouldn't this filter the water very slowly and get clogged easily?[/QUOTE] Not necessarily. [quote]With the same water pressure as regular desalination plants, the graphene system would be hundreds of times faster, according to Grossman — or it could work at much lower pressure, and therefore lower cost.[/quote] If it just filtered it passively it might get clogged up but as long as there's a little bit of convection the salt ought to be swept out of the way of the holes.
My evil genius plan could be complete! Turn all of Earth's saltwater into freshwater!!! Muwhhahahah. Wait, this is a evil plan, right?
[QUOTE=axelord157;36677466]My evil genius plan could be complete! Turn all of Earth's saltwater into freshwater!!! Muwhhahahah. Wait, this is a evil plan, right?[/QUOTE] You'd kill most of the sealife and probably seriously fuck up the ecosystem and weather so yeah that'd be pretty evil It sounds like something Dr. Evil would do, though.
[QUOTE=Emperor Scorpious II;36671707]How does salt become wasted after desalination?[/QUOTE] Usually the salty brine that results from desalination is dumped back into the sea. Which can greatly effect the salinity of the water near the plant, effectively turning it into a dead zone. Along with the many other chemicals, waste products, and reduced oxygen that comes along with the dumped brine. [url]http://www.paua.de/Impacts.htm[/url] Desalination [i]is[/i] toxic to sea life. The best way to overcome this, I suppose, would be to use as much of the waste product as possible, and don't dump it back into the sea. [editline]8th July 2012[/editline] However, it is something we unfortunately can't live without. So I hope we can find a way to make this shit less destructive for coastal environments.
[QUOTE=OvB;36678359]Usually the salty brine that results from desalination is dumped back into the sea. Which can greatly effect the salinity of the water near the plant, effectively turning it into a dead zone. Along with the many other chemicals, waste products, and reduced oxygen that comes along with the dumped brine. [url]http://www.paua.de/Impacts.htm[/url] Desalination [i]is[/i] toxic to sea life. The best way to overcome this, I suppose, would be to use as much of the waste product as possible, and don't dump it back into the sea. [editline]8th July 2012[/editline] However, it is something we unfortunately can't live without. So I hope we can find a way to make this shit less destructive for coastal environments.[/QUOTE] I'm guessing the waste is like a tiny percentage of the total water, so could we use dumps covered in concrete or give it a treatment similar to nuclear waste, putting it in containers and burying it or something?
[QUOTE=latin_geek;36678756]I'm guessing the waste is like a tiny percentage of the total water, so could we use dumps covered in concrete or give it a treatment similar to nuclear waste, putting it in containers and burying it or something?[/QUOTE] The Kurnell/Sydney Desalination Plant under construction will dump an estimated 1.5 billion litres of brine a day. So no. (see: Impacts to marine ecology: Physical Destruction to the marine environment) [url]http://www.ffc.org.au/FFC_files/desal/Whatisdesalination-factsheet-1.pdf[/url]
What makes post-filtration salt unusable? [editline]8th July 2012[/editline] or is it just a 'we don't need this right now, fuck it, just throw it away' thing
Also known as: How to save Miami from turning into the next Atlantis :v:
[QUOTE=zombays;36680449]Also known as: How to save Miami from turning into the next Atlantis :v:[/QUOTE] That's gonna happen no matter how much water we drain :v:
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