Reverse osmosis
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Reverse osmosis is a water purification process that uses a semi-permeable membrane to separate water molecules from other substances. RO applies pressure to overcome osmotic pressure that favors even
RO production train, North Cape Coral Reverse Osmosis Plant
The layers of a membrane
Cutaway of a 16" RO tube
Schematic of a RO desalination system using an energy recovery pump. 1: Sea water inflow (100%, 1 bar), 2: Sea water flow (100%, 50 bar), 3: Concentrate flow (60%, 48 bar), 4: Fresh water flow (40%, 1 bar), 5: Concentrate to drain (60%,1 bar), A: Pressure recovery pump, B: Osmosis unit with membrane
Desalination
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Desalination is the artificial process by which salt water is converted to fresh water. More generally, desalination is the removal of salts and minerals from a substance. It is possible to desalinate
Reverse osmosis
…following 200 years, osmosis was only a laboratory phenomenon. In 1950, the University of California at Los Angeles (UCLA) first investigated osmotic desalination. Researchers at both UCLA and University of Florida desalinated seawater in the mid-1950s, but the flux was too low to be commercially viable. Sidney…
A reverse osmosis desalination plant in Barcelona, Spain
The Shevchenko BN-350, a former nuclear-heated desalination unit in Kazakhstan
Mangrove leaf with salt crystals