A system and method for treating waste water includes: receiving waste water at a first pressure and a first temperature, the waste water including dissolved solids and volatile organic compounds; pressurizing, by a pump, the received waste water to a second pressure greater than the first pressure;
A system and method for treating waste water includes: receiving waste water at a first pressure and a first temperature, the waste water including dissolved solids and volatile organic compounds; pressurizing, by a pump, the received waste water to a second pressure greater than the first pressure; preheating, by a preheater, the pressurized waste water to produce distilled water and a pressurized/preheated waste water; heating, by a heater, the pressurized/preheated waste water to a second temperature greater than the first temperature to produce pressurized/heated waste water; removing, by a flash evaporator, dissolved solids from the pressurized/heated waste water by evaporation to produce steam and brine water, wherein the brine water has a total dissolved solids content greater than a total dissolved solids content of the received waste water; and crystallizing, by a plasma crystallizer, the brine water to produce a solid mass of waste product and steam.
대표청구항▼
1. A method for treating waste water comprising the steps of: (a) receiving waste water at a first pressure between 0.8-1.2 atm and a first temperature between 48-72° F., the waste water comprising dissolved solids and volatile organic compounds;(b) pressurizing the received waste water to a second
1. A method for treating waste water comprising the steps of: (a) receiving waste water at a first pressure between 0.8-1.2 atm and a first temperature between 48-72° F., the waste water comprising dissolved solids and volatile organic compounds;(b) pressurizing the received waste water to a second pressure between 8-12 atm;(c) heating the pressurized waste water to a second temperature between 240-360° F., wherein said heating step produces a distilled water and a pressurized/heated waste water without boiling of the waste water across heat transfer surfaces;wherein step (c) comprises the steps of: (c1) preheating the pressurized waste water to a third temperature greater than the first temperature but less than the second temperature without boiling of the waste water across heat transfer surfaces, wherein said preheating step produces the distilled water and a pressurized/preheated waste water; and(c2) further heating the pressurized/preheated waste water to the second temperature to produce the pressurized/heated waste water without boiling of the waste water across heat transfer surfaces;(d) evaporating the pressurized/heated waste water in an evaporator to remove dissolved solids by evaporation caused by depressurization of the waste water to produce a first steam and a brine water, wherein the brine water has a total dissolved solids content greater than a total dissolved solids content of the received waste water; and(e) crystallizing the brine water to produce a solid mass of waste product and a second steam, wherein the crystallizing step uses a plasma torch to crystallize the brine water. 2. The method of claim 1, wherein the first steam produced in step (d) is cooled to produce distilled water. 3. The method of claim 1, wherein the first steam produced in step (d) is used as a heat source in at least one of steps (b) and (c). 4. The method of claim 1, wherein steps (a)-(d) comprise a stage, and wherein the method is performed in multiple stages operating in series with the brine water output by step (d) in one stage used as the received waste water in step (a) of a next stage, and wherein the brine water output by step (d) in a last stage is input to the crystallizer at step (e). 5. The method of claim 4, wherein the brine water output in step (d) of each stage has a total dissolved solids content that is higher than that of a previous stage. 6. The method of claim 1, wherein the second steam produced by step (e) is used as a heat source in at least one of steps (b) and (c). 7. The method of claim 1, wherein the plasma torch is operated using a gas that aids in the complete destruction of the volatile organic compounds. 8. The method of claim 1, further comprising the steps of: (b′) prior to step (b), removing the volatile organic compounds from the received waste water, wherein the removed volatile organic compounds are used as a fuel by the plasma torch to crystallize the brine water. 9. The method of claim 8, wherein the second steam produced by step (e) is used as a heat source in step (b′). 10. The method of claim 1, wherein the solid mass of waste product comprises vitrified glass of the salts in the brine water. 11. A system for treating waste water comprising: a pump receiving waste water at a first pressure between 0.8-1.2 atm and a first temperature between 48-72° F. and pressurizing the received waste water to a second pressure between 8-12 atm, the waste water comprising dissolved solids and volatile organic compounds;a preheater operatively connected to the pump and receiving the pressurized waste water from the pump and preheating the pressurized waste water to a third temperature between 240-360° F. greater than the first temperature but less than a second temperature to produce a distilled water and a pressurized/preheated waste water without boiling of the waste water across heat transfer surfaces;a heater operatively connected to the preheater and heating the pressurized/preheated waste water to the second temperature to produce a pressurized/heated waste water without boiling of the waste water across heat transfer surfaces;an evaporator operatively connected to the heater and removing the dissolved solids from the pressurized/heated waste water by evaporation caused by depressurization of the waste water to produce a first steam and a brine water, wherein the brine water has a total dissolved solids content greater than a total dissolved solids content of the received waste water; anda crystallizer operatively connected to the evaporator and crystallizing the brine water to produce a solid mass of waste product and a second steam,wherein the crystallizer comprises a plasma crystallizer and includes a plasma torch for vaporizing the water from the brine water and producing the solid mass of waste product and steam. 12. The system of claim 11, wherein the evaporator comprises a flash evaporator. 13. The system of claim 11, wherein the first steam produced by the evaporator is cooled by preheater to produce the distilled water. 14. The system of claim 11, wherein the first steam produced by the evaporator is provided to at least one of the preheater and heater is used as a heat source by at least one of the preheater and heater. 15. The system of claim 11, wherein the pump, preheater, heater and evaporator comprise a stage, and wherein the system comprises multiple stages operating in series with the brine water output by one stage used as the received waste water of a next stage, and wherein the brine water output by a last stage is input to the crystallizer. 16. The system of claim 15, wherein the brine water output by each stage has a total dissolved solids content that is higher than that of a previous stage. 17. The system of claim 11, wherein the second steam produced by the crystallizer is provided to at least one of the preheater and heater and is used as a heat source by at least one of the preheater and heater. 18. The system of claim 11, wherein the plasma torch is operated using a gas that aids in the complete destruction of the volatile organic compounds. 19. The system of claim 11, further comprising a stripper initially receiving the waste water and removing the volatile organic compounds from the waste water prior to the waste water being pressurized by the pump, wherein the removed volatile organic compounds are used as a fuel by the plasma torch to crystallize the brine water. 20. The system of claim 19, where the second steam produced by the crystallizer is provided to the stripper and is used as a heat source by the stripper. 21. The system of claim 11, wherein the solid mass of waste product comprises vitrified glass of the salts in the brine water.
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