Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Pilot Scale Demonstration of Low-Salt-Rejection Reverse Osmosis (LSRRO) Desalination of High Salinity Brines
https://orcid.org/0009-0000-2655-8553
https://orcid.org/0000-0002-0520-5430
https://orcid.org/0000-0003-4186-1563
https://orcid.org/0000-0002-8389-5780
https://orcid.org/0000-0002-0669-4117
Low-salt-rejection reverse osmosis (LSRRO) is a novel RO process configuration capable of treating hypersaline brines that conventional seawater reverse osmosis (SWRO) cannot. LSRRO can operate under hydraulic pressures similar to those of SWRO, thereby having lower specific energy consumption than thermal desalination. This study presents a unique demonstration of LSRRO. Five feed streams, from simple NaCl solutions (70 g/L total dissolved solids (TDS)) to oil and gas produced water (133 g/L TDS) were used to assess the performance of a pilot LSRRO system, using water recovery and stream compositions as performance metrics. The results confirm the capability of LSRRO to achieve water recoveries greater than 60% while generating brines with TDS concentrations higher than 200 g/L, far exceeding conventional SWRO performance, while limiting hydraulic pressure to 1,100 psi (75.8 bar). Water flux through the nine unique LSRRO membranes was also evaluated, and the results will help fine-tune salt and water permeabilities for future membrane fabrication. Overall, the rejection of select ions was more than 99% across all experiments, producing high-quality permeate with TDS concentrations ranging from a low of 31 mg/L to a high of 333 mg/L. Membrane integrity testing revealed a lack of damage or scaling after the experiments.
Through pilot testing, we have demonstrated that a unique RO system can desalinate hypersaline streams using an array of low-salt-rejection membranes.
Pilot Scale Demonstration of Low-Salt-Rejection Reverse Osmosis (LSRRO) Desalination of High Salinity Brines
https://orcid.org/0009-0000-2655-8553
https://orcid.org/0000-0002-0520-5430
https://orcid.org/0000-0003-4186-1563
https://orcid.org/0000-0002-8389-5780
https://orcid.org/0000-0002-0669-4117
Low-salt-rejection reverse osmosis (LSRRO) is a novel RO process configuration capable of treating hypersaline brines that conventional seawater reverse osmosis (SWRO) cannot. LSRRO can operate under hydraulic pressures similar to those of SWRO, thereby having lower specific energy consumption than thermal desalination. This study presents a unique demonstration of LSRRO. Five feed streams, from simple NaCl solutions (70 g/L total dissolved solids (TDS)) to oil and gas produced water (133 g/L TDS) were used to assess the performance of a pilot LSRRO system, using water recovery and stream compositions as performance metrics. The results confirm the capability of LSRRO to achieve water recoveries greater than 60% while generating brines with TDS concentrations higher than 200 g/L, far exceeding conventional SWRO performance, while limiting hydraulic pressure to 1,100 psi (75.8 bar). Water flux through the nine unique LSRRO membranes was also evaluated, and the results will help fine-tune salt and water permeabilities for future membrane fabrication. Overall, the rejection of select ions was more than 99% across all experiments, producing high-quality permeate with TDS concentrations ranging from a low of 31 mg/L to a high of 333 mg/L. Membrane integrity testing revealed a lack of damage or scaling after the experiments.
Through pilot testing, we have demonstrated that a unique RO system can desalinate hypersaline streams using an array of low-salt-rejection membranes.
Pilot Scale Demonstration of Low-Salt-Rejection Reverse Osmosis (LSRRO) Desalination of High Salinity Brines
https://orcid.org/0009-0000-2655-8553
https://orcid.org/0000-0002-0520-5430
https://orcid.org/0000-0003-4186-1563
https://orcid.org/0000-0002-8389-5780
https://orcid.org/0000-0002-0669-4117
Low-salt-rejection reverse osmosis (LSRRO) is a novel RO process configuration capable of treating hypersaline brines that conventional seawater reverse osmosis (SWRO) cannot. LSRRO can operate under hydraulic pressures similar to those of SWRO, thereby having lower specific energy consumption than thermal desalination. This study presents a unique demonstration of LSRRO. Five feed streams, from simple NaCl solutions (70 g/L total dissolved solids (TDS)) to oil and gas produced water (133 g/L TDS) were used to assess the performance of a pilot LSRRO system, using water recovery and stream compositions as performance metrics. The results confirm the capability of LSRRO to achieve water recoveries greater than 60% while generating brines with TDS concentrations higher than 200 g/L, far exceeding conventional SWRO performance, while limiting hydraulic pressure to 1,100 psi (75.8 bar). Water flux through the nine unique LSRRO membranes was also evaluated, and the results will help fine-tune salt and water permeabilities for future membrane fabrication. Overall, the rejection of select ions was more than 99% across all experiments, producing high-quality permeate with TDS concentrations ranging from a low of 31 mg/L to a high of 333 mg/L. Membrane integrity testing revealed a lack of damage or scaling after the experiments.
Through pilot testing, we have demonstrated that a unique RO system can desalinate hypersaline streams using an array of low-salt-rejection membranes.
Pilot Scale Demonstration of Low-Salt-Rejection Reverse Osmosis (LSRRO) Desalination of High Salinity Brines
Van Houghton, Brett D. (Autor:in) / Rosenblum, James S. (Autor:in) / Lampi, Keith (Autor:in) / Beaudry, Edward (Autor:in) / Herron, Jack J. (Autor:in) / del Cerro, Martina (Autor:in) / De Finnda, Casey T. K. (Autor:in) / Elimelech, Menachem (Autor:in) / Gilron, Jack (Autor:in) / Cath, Tzahi Y. (Autor:in)
ACS ES&T Water ; 4 ; 5089-5104
08.11.2024
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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