h a l f b a k e r y"It would work, if you can find alternatives to each of the steps involved in this process."
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Massive tanker style ships carrying desalination plants, that sail the ocean and deliver fresh water to wherever it's needed.
Half Baked - nuclear-powered desalination ship
http://tech-db.istc...ra.htm?open&id=0347
(Can't tell if this is a patent, a whitepaper or a spec.) [DrCurry, Dec 20 2007]
Half Baked
http://jobfunctions...=13209&docid=124934
(This one *is* a whitepaper.) [DrCurry, Dec 20 2007]
Half Baked - solar and wind powered!
http://www.zulenet...._craft_carrier.html
(Evidently a *lot* of people have thought about this concept. Or at least drawn pictures and written whitepapers.) [DrCurry, Dec 20 2007]
Be your own desal ship!
http://www.landfall...ion.com/-sas07.html
2 pints of fresh water, with only 1 hour of hand pumping! [mylodon, Dec 21 2007]
[link]
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whimsical... in reality probably faster to drop a water-purification setup. |
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Unless, of course, the water is needed in Kansas. |
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Yes, but you're not in Kansas now ...... |
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Isn't this what the USS Abraham Lincoln did after the Aceh tsunami? (And the Bonhomme Richard in Sri Lanka.) |
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It's not a bad idea, becuase it's so mobile, but to be effective the ship would need a nuclear powerplant. |
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I wonder if it is easier to expend the energy desalinating sea-water, or towing icebergs to where they're needed. |
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It is certainly possible. Large ships already have their own desal systems for drinking water. As mentioned, navy ships have provided desal water to towns during disasters like the tsunami. |
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It comes down to need and economics. Several companies offer mobile, packaged water treatment systems that can be flown or trucked in. I know one system you can set up on a beach, run a hose out into the ocean, and be operational in hours. So, why do you need a dedicated ship? |
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You can buy little desalination pumps ('water makers') for little boats. So if you want to bake this yourself, buy a little water maker, get in a canoe, go across the bay, make a little water, and give it to someone. Other then that it's just a matter of scale. |
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LOL [DrCurry]'s third link, that one is a converted aircraft carrier! |
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Huh. Looks like, from the illustration, that the boat is sucking salt water from the right side of the frame, and depositing it as fresh water on the left. |
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Because governments are reluctant to give permits
to create factories on the beaches (and many times
correctly so, since the beach is a resource for
swimming / fishing, any changes (even a single rock)
easily cause erosion of coastline or other drastic
changes - leading to cross country weather change
etc. |
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So here you have a "solid" (well rather liquid)
business. |
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