2007-07-11 23:30:48 · 5 answers · asked by moh 1 in Science & Mathematics ➔ Engineering
It depends... Cheapest processing cost or cheapest investment cost. If investment or startup cost then you can use distillation. But if you want long-term chepness, you should opt for reverse osmosis.
2007-07-11 23:42:59 · answer #1 · answered by Life=more than just living :) 3 · 1⤊ 0⤋
It requires energy.
It is commonly done by evaporation, (heat required),
or reverse osmosis, (Pressure pumps), across a membrane.
There is an interesting idea going around that uses
solar heating plus the temp. difference between deep and surface sea water that produces de-salinized water as a by product of power generation.
Google "open circuit OTEC ".
2007-07-12 18:59:40 · answer #2 · answered by Irv S 7 · 0⤊ 0⤋
Put the sea water in a glass jar and leave the lid off. Set it in the sun for as long as it takes to evaporate and all that will be left is the salt.Rinse the jar out and fill with tap water LOL
I dont know ...just guessing
2007-07-12 06:44:09 · answer #3 · answered by stamana37043 1 · 0⤊ 1⤋
Commercially, reverse osmosis. If you wanted to build something small yourself, you would probably use evaporation.
2007-07-15 14:33:34 · answer #4 · answered by Poor one 6 · 0⤊ 0⤋
you have to boiel it
2007-07-12 06:35:34 · answer #5 · answered by digger777_2000 1 · 0⤊ 0⤋