IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0424125
(2009-04-15)
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등록번호 |
US-8206589
(2012-06-26)
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발명자
/ 주소 |
|
출원인 / 주소 |
- Poseidon Resources IP LLC
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
2 인용 특허 :
20 |
초록
▼
Various embodiments described herein provide methods and apparatus for producing purified water from sea water or some other salty or brackish water source by using brackish concentrate mixed with salty water. The various embodiments also provide methods and apparatus for the treatment of toxicity o
Various embodiments described herein provide methods and apparatus for producing purified water from sea water or some other salty or brackish water source by using brackish concentrate mixed with salty water. The various embodiments also provide methods and apparatus for the treatment of toxicity of brackish concentrate, which brackish concentrate exhibits on aquatic life inhabiting the area of discharge of the brackish concentrate, as well as a method for environmentally safe disposal of brackish concentrate.
대표청구항
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1. A method for purifying water, comprising the steps of: mixing brackish desalination concentrate originating from a brackish source, after providing the brackish concentrate to a wastewater treatment plant, and sea water to produce mixed water, wherein the brackish concentrate has a salt concentra
1. A method for purifying water, comprising the steps of: mixing brackish desalination concentrate originating from a brackish source, after providing the brackish concentrate to a wastewater treatment plant, and sea water to produce mixed water, wherein the brackish concentrate has a salt concentration that is less than a salt concentration of the sea water; and desalinating the mixed water at a first desalination plant to produce a permeate having a lower salt concentration than the mixed water and a concentrate having a higher salt concentration than the mixed water. 2. The method of claim 1, wherein the brackish concentrate is provided by a second desalination plant that desalinates brackish water to produce the brackish concentrate. 3. The method of claim 2, wherein the brackish water is from an inland brackish water aquifer. 4. The method of claim 2, wherein the brackish concentrate is provided by a plurality of brackish water desalination plants that desalinate brackish water to produce the brackish concentrate. 5. The method of claim 1, wherein the brackish concentrate is formed by concentrating brackish water having a total dissolved solids concentration below 15,000 mg/L. 6. The method of claim 1, wherein the brackish concentrate has a total dissolved solids concentration between about 2,000 to about 5,000 mg/L. 7. The method of claim 1, further comprising charging a fee to receive the brackish concentrate at the first desalination plant. 8. The method of claim 1, further comprising desalinating the mixed water by reverse osmosis. 9. The method of claim 1, further comprising desalinating the mixed water by a thermal desalination process. 10. The method of claim 1, wherein the concentrate does not exhibit toxicity to marine life. 11. The method of claim 1, wherein the brackish concentrate and sea water is mixed in a specific proportion that causes the concentrate to be non-toxic to marine life. 12. The method of claim 1, wherein the permeate is potable water. 13. The method of claim 1, further comprising outputting the concentrate to an outlet of the first desalination plant. 14. The method of claim 13, wherein the outlet of the first desalination plant exits to an ocean. 15. The method of claim 1, wherein the concentrate includes one or more ions selected from the group consisting of calcium, magnesium, fluoride, strontium, sodium, chloride, potassium, sulfates, and bicarbonates, and wherein the ratio of each of the ions to the total dissolved solids is not toxic to marine life. 16. The method of claim 1, wherein the concentrate has a higher total dissolved solids concentration than the brackish concentrate. 17. The method of claim 1, wherein the first desalination plant is a costal desalination plant. 18. The method of claim 1, wherein the mixed water comprises no more than 40% of the brackish concentrate. 19. The method of claim 1, wherein the mixed water comprises about 40% brackish concentrate and about 60% sea water. 20. The method of claim 1, wherein the brackish concentrate has a lower salinity than the seawater. 21. The method of claim 1, wherein the brackish concentrate comprises antiscalants. 22. The method of claim 1, further comprising heating at least a portion of the sea water in a power plant cooling system before mixing the sea water with the brackish concentrate. 23. A method for purifying water, comprising the steps of: receiving a first salty desalination concentrate water having a total dissolved solids concentration of less than 33,500 mg/L, that has been provided to a wastewater treatment plant after having been desalinated, at a first desalination plant; receiving a second salty water having a total dissolved solids concentration equal to or greater than 33,500 mg/L at the first desalination plant; mixing the first salty water and the second salty water to produce a mixed water; desalinating the mixed water at the first desalination plant to produce a potable permeate having a total dissolved solids concentration that is lower than the mixed water and a concentrate having a total dissolved solids concentration that is higher than the mixed water; and outputting the concentrate through an output of the first desalination plant. 24. The method of claim 23, wherein the first salty water is produced at a second desalination plant by desalinating a third salty water having a total dissolved solids concentration of less than about 15,000 mg/L. 25. The method of claim 23, wherein the second salty water has a total dissolved solids concentration of about 2,000 to 5,000 mg/L. 26. The method of claim 23, wherein the concentrate does not exhibit toxicity to marine life. 27. The method of claim 23, wherein the mixed water comprises less than 40% of the first salty water. 28. The method of claim 23, further comprising heating at least a portion of the second salty water in a power plant before mixing the first salty water with the second salty water. 29. A method of producing potable water from a salty water comprising: providing brackish water to a first desalination plant; desalinating the brackish water at the first desalination plant to produce a first concentrate having a higher salt content than the brackish water and a lower salt content than sea water and a first permeate having a lower salt concentration than the brackish water; providing the first concentrate to a wastewater treatment plant and then providing the first concentrate to a second desalination plant; providing sea water to the second desalination plant; mixing the first concentrate with the sea water to produce a mixed water; and desalinating the mixed water at the second desalination plant to produce a second concentrate having a higher salt content than the mixed water and a second permeate having a lower salt concentration than the mixed water. 30. The method of claim 29, further comprising mixing the first concentrate with brackish concentrates from a plurality of brackish desalination plants at the wastewater treatment plant. 31. The method of claim 29, further comprising charging a fee to receive the first concentrate at the second desalination plant. 32. The method of claim 29, wherein the mixed water comprises no more than 40% of the first concentrate. 33. A method for disposing of concentrated salty water, comprising the steps of: mixing brackish desalination concentrate originating from desalination of a brackish source and sea water desalination concentrate to produce a mixed concentrate; and outputting the mixed concentrate to an ocean comprising sea water, wherein the brackish concentrate has a lower salt concentration than the sea water and the sea water concentrate has a higher salt concentration than the sea water. 34. The method of claim 33, wherein the brackish concentrate is produced at a first desalination plant by desalinating brackish water, and wherein the sea water concentrate is produced at a second desalination plant by desalinating sea water. 35. The method of claim 34, further comprising: mixing the brackish concentrate with the sea water concentrate at the second desalination plant; and outputting the mixed concentrate to the ocean through an output of the second desalination plant. 36. The method of claim 35, wherein the brackish concentrate is provided to a wastewater treatment plant from the first desalination plant, and wherein the brackish concentrate is provided to the second desalination plant from the wastewater treatment plant. 37. The method of claim 36, wherein the brackish concentrate is mixed with brackish concentrates from a plurality of brackish water desalination plants at the wastewater treatment plant. 38. The method of claim 33, wherein the mixed concentrate comprises less than 40% of the brackish concentrate. 39. A desalination system comprising: a first input coupled to a wastewater treatment plant that receives brackish concentrate from a unit that desalinates brackish water to produce the brackish concentrate; a second input coupled to a source of sea water, wherein the brackish concentrate has a salt concentration that is less than a salt concentration of the sea water; a mixer coupled to the wastewater treatment plant and the second input for mixing the brackish concentrate and the sea water to produce a mixed water; and a desalination unit for desalinating the mixed water to produce a permeate having a lower salt concentration than the mixed water and a concentrate having a higher salt concentration than the mixed water. 40. The desalination system of claim 39, wherein the brackish water desalination unit is comprised in a second desalination plant that desalinates brackish water to produce the brackish concentrate. 41. The desalination system of claim 40, wherein the first input is coupled to a plurality of brackish water desalination plants that desalinate brackish water to produce the brackish concentrate. 42. The desalination system of claim 39, wherein the brackish concentrate has a total dissolved solids concentration of less than 30,000 mg/L. 43. The desalination system of claim 39, wherein the desalination unit comprises a reverse osmosis membrane. 44. The desalination system of claim 39, wherein the desalination unit comprises a thermal desalination unit. 45. The desalination system of claim 39, further comprising an output coupled to a potable water supply to provide the permeate to the potable water supply. 46. The desalination system of claim 39, further comprising an output coupled to an ocean to provide the concentrate to the ocean. 47. The desalination system of claim 39, wherein the brackish concentrate comprises antiscalants. 48. The desalination system of claim 39, wherein the second input is coupled to the output of a cooling system of a power plant. 49. A system for desalinating salty water comprising: a brackish desalination plant comprising: a first input coupled to a source of brackish water, a desalination unit for desalinating the brackish water to produce a first permeate having a lower salt concentration than the brackish water and a first concentrate having a higher salt concentration than the brackish water and a lower salt concentration than sea water, and a first output for outputting the concentrate coupled to a wastewater treatment plant; and a seawater desalination plant comprising: a second input coupled to the wastewater treatment plant first output for inputting the brackish concentrate into the second desalination plant, a third input coupled to a source of sea water, a mixer coupled to the first input and the second input for mixing the brackish concentrate and the sea water to produce a mixed water,a desalination unit for desalinating the mixed water to produce a second permeate having a lower salt concentration than the mixed water and a second concentrate having a higher salt concentration than the mixed water, anda second output coupled to an ocean for outputting the second concentrate to the ocean. 50. The desalination system of claim 49, further comprising a power plant coupled to the third input for providing sea water heated by the power plant to the third input. 51. The desalination system of claim 49, further comprising a plurality of brackish desalination plants coupled to the wastewater treatment plant for providing brackish concentrate to the wastewater treatment plant.
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