Systems, methods, and apparatus for desalinating water are provided. A vessel includes a water intake system, a reverse osmosis system, a concentrate discharge system, a permeate transfer system, a power source, and a control system. The concentrate discharge system includes a plurality of concentra
Systems, methods, and apparatus for desalinating water are provided. A vessel includes a water intake system, a reverse osmosis system, a concentrate discharge system, a permeate transfer system, a power source, and a control system. The concentrate discharge system includes a plurality of concentrate discharge ports.
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What is claimed is: 1. An apparatus for desalinating seawater to yield desalinated water and a concentrate, the apparatus comprising: a floating structure located at a position on the surface of a body of seawater; a water desalination system installed on the floating structure, the desalination sy
What is claimed is: 1. An apparatus for desalinating seawater to yield desalinated water and a concentrate, the apparatus comprising: a floating structure located at a position on the surface of a body of seawater; a water desalination system installed on the floating structure, the desalination system capable of producing between 5,000 and 450,000 cubic meters of desalinated water per day; a water intake system installed on the floating structure and comprising a device for taking up seawater from the body of seawater into the water desalination system; means for transporting the desalinated water from the floating structure to a land-based water distribution system; and a concentrate discharge system installed on the floating structure and comprising a device for discharging the concentrate into the body of seawater, wherein the device for discharging the concentrate into the seawater comprises at least one means selected from the group consisting of (a) means for dispersing the concentrate during discharge from the concentrate discharge system and (b) means for diluting the concentrate with water from the body of seawater before entering the body of seawater, and wherein the device for discharging the concentrate into the seawater comprises at least one discharge port comprising a grate comprising divergently oriented apertures. 2. The apparatus of claim 1, wherein the device for discharging the concentrate into the seawater comprises a plurality of discharge ports, and wherein the discharge ports are positioned at the surface of the body of seawater. 3. The apparatus of claim 2, wherein the discharge ports are movable. 4. The apparatus of claim 1, wherein the device for discharging the concentrate into the body of seawater comprises a discharge member positioned on the surface of the body of seawater and comprising a plurality of discharge ports. 5. An apparatus for desalinating seawater to yield desalinated water and a concentrate, the apparatus comprising: a floating structure located at a position on the surface of a body of seawater; a water desalination system installed on the floating structure, the desalination system capable of producing between 5,000 and 450,000 cubic meters of desalinated water per day; a water intake system installed on the floating structure and comprising a device for taking up seawater from the body of seawater into the water desalination system; means for transporting the desalinated water from the floating structure to a land-based water distribution system; and a concentrate discharge system installed on the floating structure and comprising a device for discharging the concentrate into the body of seawater, wherein the device for discharging the concentrate into the seawater comprises at least one means selected from the group consisting of (a) means for dispersing the concentrate during discharge from the concentrate discharge system and (b) means for diluting the concentrate with water from the body of seawater before entering the body of seawater, and wherein the device for discharging the concentrate into the body of seawater comprises a discharge member that can be lowered and retracted from the apparatus. 6. The apparatus of claim 5, wherein the floating structure is moored in the body of water. 7. The apparatus of claim 5, wherein the device for discharging the concentrate into the seawater comprises a plurality of discharge ports. 8. The apparatus of claim 5, wherein the device for discharging the concentrate into the body of seawater comprises at least one discharge port having a circumference that can be changed. 9. The apparatus of claim 5, wherein the device for discharging the concentrate into the body of seawater comprises a pump that increases the pressure of the concentrate before discharge. 10. A method for desalinating seawater on a floating structure located on the surface of a body of seawater, the method comprising the steps of: intaking seawater from the body of seawater into a desalination system installed on the floating structure; removing salt from the seawater taken into the desalination system to yield a concentrate and at least 5,000 and 450,000 cubic meters of desalinated water per day; transporting the desalinated water from the floating structure to a land-based water distribution system; and discharging the concentrate from the floating apparatus into the body of seawater, the step of discharging comprising at least one step selected from the group consisting of (a) dispersing the concentrate during discharge and (b) diluting the concentrate with water from the body of seawater before entering the body of seawater, wherein the concentrate is discharged from the floating structure into the body of seawater through a grate comprised on a discharge port, the gate comprising divergently oriented apertures. 11. The method of claim 10, wherein the concentrate is discharged from the floating structure into the body of seawater via a plurality of discharge ports, and wherein the plurality of discharge ports are located at the surface of the body of seawater. 12. The method of claim 10, wherein the concentrate is discharged from the floating structure into the body of seawater via at least one discharge port which is movable and the method further comprises the step of moving the at least one discharge port during the step of discharging the concentrate. 13. A method for desalinating seawater on a floating structure located on the surface of a body of seawater, the method comprising the steps of: intaking seawater from the body of seawater into a desalination system installed on the floating structure; removing salt from the seawater taken into the desalination system to yield a concentrate and at least 5,000 and 450,000 cubic meters of desalinated water per day; transporting the desalinated water from the floating structure to a land-based water distribution system; and discharging the concentrate from the floating apparatus into the body of seawater, the step of discharging comprising at least one step selected from the group consisting of (a) dispersing the concentrate during discharge and (b) diluting the concentrate with water from the body of seawater before entering the body of seawater, wherein the concentrate is discharged from the floating structure into the body of seawater via a discharge member that can be lowered and retracted from the floating structure and the method further comprises the steps of lowering and retracting the discharge member. 14. The method of claim 13, further comprising the step of maintaining the floating structure at a location substantially fixed relative to a position on land. 15. The method of claim 13, further comprising the step of mooring the floating structure in the body of seawater. 16. The method of claim 13, wherein the concentrate is discharged from the floating structure into the body of seawater via a plurality of discharge ports. 17. The method of claim 13, wherein the concentrate is discharged from the floating structure into the body of seawater via at least one discharge port comprising a circumference and the method further comprises the step of changing the circumference of the at least one discharge port. 18. The method of claim 13, wherein the step of discharging the concentrate from the floating apparatus into the body of seawater comprises the step of increasing the pressure of the concentrate before discharge. 19. The method of claim 13, wherein the step of discharging the concentrate from the floating apparatus into the body of seawater comprises the step of reducing the salt concentration of the concentrate to be substantially equal to the salinity level of the seawater at the area where the concentrate is discharged. 20. The method of claim 13, wherein the step of discharging the concentrate from the floating apparatus into the body of seawater comprises the step of altering the temperature of the concentrate to be substantially equal to the temperature of the seawater at the area where the concentrate is discharged. 21. The method of claim 13, wherein the step of discharging the concentrate from the floating apparatus into the body of seawater comprises diluting the concentrate with water from the body of seawater in a mixing tank installed on the floating structure. 22. The method of claim 13, further comprising the step of adjusting the pH of the desalinated water on the floating structure.
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