Point of use water treatment with forward osmosis for emergency relief

Butler, Ethan L.; Silva, Andrew; Horton, Kyle G.; Rom, Zachary; Chwatko, Malgorzata; Havasov, Arie; McCutcheon, Jeffrey R.

doi:10.1016/j.desal.2012.12.013

Cited by 46 publications

(29 citation statements)

References 38 publications

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“…Osmotically driven membrane processes such as forward osmosis (FO) and pressure-retarded osmosis (PRO) have been shown to be robust technologies with numerous applications including seawater desalination [1], wastewater treatment [2][3][4], emergency relief [5], and power generation (PRO) [6][7][8]. In FO, an osmotic pressure gradient drives water across a semi-permeable membrane from a feed solution to a highly concentrated draw solution.…”

Section: Introductionmentioning

confidence: 99%

Mesh-reinforced thin film composite membranes for forward osmosis applications: The structure–performance relationship

Stillman

Krupp

2014

Journal of Membrane Science

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Section: Introductionmentioning

confidence: 99%

Mesh-reinforced thin film composite membranes for forward osmosis applications: The structure–performance relationship

Stillman

Krupp

2014

Journal of Membrane Science

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“…Extensive research has been conducted to evaluate the use of forward osmosis (FO) for water purification [1][2][3][4][5]. More specifically, the FO/reverse osmosis (RO) hybrid process has been considered by several authors as a promising method to combine water reuse and desalination [3,6,7].…”

Section: Introductionmentioning

confidence: 99%

Pressure enhanced fouling and adapted anti-fouling strategy in pressure assisted osmosis (PAO)

Blandin

Verliefde

Le‐Clech

2015

Journal of Membrane Science

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“…Another FO pilot plant forgoes draw regeneration in favor of "osmotic dilution" [2,18]: the dilution of a pure sodium chloride solution powers the concentration of O&G wastewater. Osmotic dilution is also used in emergency hydration [23], fertigation [24], and other applications described in [25].…”

Section: Assessment Of Technologiesmentioning

confidence: 99%

Raising forward osmosis brine concentration efficiency through flow rate optimization

2015

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An exergetic efficiency is defined in order to compare brine concentration processes including forward osmosis (FO) across a wide range of salinities. We find that existing FO pilot plants have lower efficiency than reverse osmosis plants in the brackish and seawater salinity ranges. High salinity FO, in its current form, is still less efficient than mechanical vapor compression. We show that efficiency is the product of FO exchanger and draw regenerator efficiencies, and therefore FO system energy efficiency benefits from improvements to both. The mass flow rate ratio (between draw and feed flow rates) is identified as a crucial parameter in the design of efficient FO systems because of its effect on exchanger efficiency. We demonstrate a method of thermodynamically balancing an FO system by choosing flow rates that lead to equal osmotic pressure differences at both ends of the exchanger, and show the method's potential to increase efficiency by 3-21% based on current system designs.

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Point of use water treatment with forward osmosis for emergency relief

Cited by 46 publications

References 38 publications

Mesh-reinforced thin film composite membranes for forward osmosis applications: The structure–performance relationship

Mesh-reinforced thin film composite membranes for forward osmosis applications: The structure–performance relationship

Pressure enhanced fouling and adapted anti-fouling strategy in pressure assisted osmosis (PAO)

Raising forward osmosis brine concentration efficiency through flow rate optimization

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