desalination of sea water

Submitted: Monday, Apr 08, 2013 at 16:19
ThreadID: 101572 Views:2456 Replies:9 FollowUps:8
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i am hoping someone can help,
I am chasing a R\o reverse osmosis small system that i can set up in a remote site that can do about 100 litres a day, i will have 240 power running all day and will shut down at night, we will have sea water, and bore water , on site and will be needing enough for two days supply. i have read about portable systems some where but have been unable to find where to buy one, if anyone can help it would be appreciated, i was thinking of a small unit that will fit in a toolbox or specific container and not take up too much room.
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Reply By: Peter_n_Margaret - Monday, Apr 08, 2013 at 16:49

Monday, Apr 08, 2013 at 16:49
Marine suppliers would be the place to start for a unit of that capacity.

Cheers,
Peter
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Reply By: kev.h - Monday, Apr 08, 2013 at 17:17

Monday, Apr 08, 2013 at 17:17
Something like this
http://www.youtube.com/watch?v=y7VaJoXDNmY
Found this on a google search
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Reply By: Member - wicket - Monday, Apr 08, 2013 at 18:11

Monday, Apr 08, 2013 at 18:11
This group ship them to Oz

reverse osmosis units

If you want to contact someone who has one then this bloke might give you some feedback

http://www.greataussieadventure.com.au/node/49
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Reply By: Member - Murray R (VIC) - Monday, Apr 08, 2013 at 22:25

Monday, Apr 08, 2013 at 22:25
We have one for sale here in Victoria LOL
On serious note try a marine supplies as Pete has said
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Follow Up By: Member - John (Vic) - Monday, Apr 08, 2013 at 22:31

Monday, Apr 08, 2013 at 22:31
Only $24 billion!!

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Reply By: Motherhen - Monday, Apr 08, 2013 at 22:26

Monday, Apr 08, 2013 at 22:26
Is it realistic to expect to find a small portable unit capable of desalinating sea water in anything like the quantities being sought here?
Motherhen

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Reply By: Nomadic Navara - Monday, Apr 08, 2013 at 23:15

Monday, Apr 08, 2013 at 23:15
There are heaps of links on this page

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Reply By: bigfellabrian - Tuesday, Apr 09, 2013 at 06:35

Tuesday, Apr 09, 2013 at 06:35
Issue sorted, water maker from the Gold Coast do a small system 400x400 mm doing 35 litres an hour , thanks for the input .
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Follow Up By: Member - John and Val - Tuesday, Apr 09, 2013 at 07:47

Tuesday, Apr 09, 2013 at 07:47
Interesting. How much power does it require and what's the cost???

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John
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Follow Up By: Member - John and Val - Tuesday, Apr 09, 2013 at 08:02

Tuesday, Apr 09, 2013 at 08:02
Couldn't find the Gold Coast source, but this sort of answers my questions :



Costs a bit over $4000, plus the cost of the generator to run it.

Think at that price I'd sooner carry a couple of 25 litre containers for potable water, and use wet wipes instead of a shower!

Cheers

John
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Follow Up By: Nomadic Navara - Tuesday, Apr 09, 2013 at 09:19

Tuesday, Apr 09, 2013 at 09:19
John, that system is like towing your van with a large truck. The OP is requiring 20 gallons a day of fresh water not 20 gallons per hour. The page of links above have units there that will satisfy his demand for $200 or slightly more. There is no need to give ridiculous examples.
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Follow Up By: Member - John and Val - Tuesday, Apr 09, 2013 at 11:16

Tuesday, Apr 09, 2013 at 11:16
Keep ya shirt on Peter! There's nothing ridiculous about it! I went searching for prices and this was the smallest one that came up. Yes it's bigger than the OP wants, but it's what I found.

Please refrain from attacking other's responses in such a derisory fashion. It impacts on the tone of the forum, and warns potentially valuable contributors to keep their heads down!

John
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Follow Up By: bigfellabrian - Tuesday, Apr 09, 2013 at 12:23

Tuesday, Apr 09, 2013 at 12:23
thanks john
my issue is i have not explained myself again, i work remotely doing testing on everything from trawlers to drill rigs, i have two men with me needing water and i need to shower daily, my real reasoning is to purchase something we can R\o bore water or sea water that isnt too costly, but i am prepared to do whatever it takes as carting water is a weight we can sometimes do without.
it looks like we have been able to do something this morning around $900 fully set up in a pelican case ready to go.
i am back out in the gas fields at "cudapan" next week, so i will test some production water out of a well and see what is the story. thanks again as all relevent help is appreciated.
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Follow Up By: Member - John and Val - Tuesday, Apr 09, 2013 at 13:33

Tuesday, Apr 09, 2013 at 13:33
Hi Brian,

No problem! There are many folks who post here, and many, many more that are just watching and picking up useful information. (There are usually 1000 or more on line at any one time.) Some are looking for easy solutions to difficult problems and go away disappointed. Obviously you have a real need to convert rough mineralised water into quality water. I mistakenly assumed (bad things assumptions!) you were another traveller like me trying to avoid the weight and space required to carry water. A reality check seemed in order!

Sounds as if you've found a good solution.

Cheers

John
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Reply By: Member - wicket - Tuesday, Apr 09, 2013 at 15:04

Tuesday, Apr 09, 2013 at 15:04
bigfellabrian

Could you tell us where you got that $900 unit from, seems like a good price and I wouldn't mind one myself

thanks
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Follow Up By: bigfellabrian - Tuesday, Apr 09, 2013 at 15:27

Tuesday, Apr 09, 2013 at 15:27
wicket
i have bought all the individual parts, membrane, pumps and solenoid all from a internet, the pump needs to produce 800 psi at the mebrane when running 15ppm blue sea water, you will also need a charge pump normal pressure pump to charge hp pressure pump. when i build i will submit photos on the complete package. i have reengineeered like the chineese have done for the last twenty years.
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Reply By: The Bantam - Wednesday, Apr 10, 2013 at 10:24

Wednesday, Apr 10, 2013 at 10:24
Actually, reverse osmosis may be more viable that we may think.......there are small ROs on the market for less than $300.

For those traveling remote for extended periods they could be a very viable source of clean drinking water

In so many places there is plenty of water, but it is either not fit for consumption or its unpleasant.

These little RO's look to be smaller and lighter than a 20 liter drum of water..and so many touring rigs are skint for space & weight.

Like many things not too long ago reverse osmosis was an expensive and bulky thing......seems things have changed.

cheers
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