A novel ammonia—carbon dioxide forward (direct) osmosis desalination process

McCutcheon, Jeffrey R.; McGinnis, Robert L.; Elimelech, Menachem

doi:10.1016/j.desal.2004.11.002

Cited by 864 publications

(560 citation statements)

References 6 publications

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“…In FO, water diffuses through the semipermeable FO membrane from the feed solution to the DS; thus, the DS is diluted during FO and the feed becomes more concentrated. 29,30 To recover fresh water and maintain a constant DS concentration, FO is commonly coupled with a DS recovery process such as distillation, 31 membrane distillation (MD), 32,33 or RO. 34−36 In addition to reconcentrating the DS, a major benefit of using a hybrid FO-MD or FO-RO process is that two highly selective barriers are employed in series for removal of almost all dissolved feed constituents, including TOrCs.…”

Section: Introductionmentioning

confidence: 99%

Removal of Trace Organic Chemicals and Performance of a Novel Hybrid Ultrafiltration-Osmotic Membrane Bioreactor

Holloway

Regnery

Nghiem

et al. 2014

Environ. Sci. Technol.

130

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A hybrid ultrafiltration-osmotic membrane bioreactor (UFO-MBR) was investigated for over 35 days for nutrient and trace organic chemical (TOrC) removal from municipal wastewater. The UFO-MBR system uses both ultrafiltration (UF) and forward osmosis (FO) membranes in parallel to simultaneously extract clean water from an activated sludge reactor for nonpotable (or environmental discharge) and potable reuse, respectively. In the FO stream, water is drawn by osmosis from activated sludge through an FO membrane into a draw solution (DS), which becomes diluted during the process. A reverse osmosis (RO) system is then used to reconcentrate the diluted DS and produce clean water suitable for direct potable reuse. The UF membrane extracts water, dissolved salts, and some nutrients from the system to prevent their accumulation in the activated sludge of the osmotic MBR. The UF permeate can be used for nonpotable reuse purposes (e.g., irrigation and toilet flushing). Results from UFO-MBR investigation illustrated that the chemical oxygen demand, total nitrogen, and total phosphorus removals were greater than 99%, 82%, and 99%, respectively. Twenty TOrCs were detected in the municipal wastewater that was used as feed to the UFO-MBR system. Among these 20 TOrCs, 15 were removed by the hybrid UFO-MBR system to below the detection limit. High FO membrane rejection was observed for all ionic and nonionic hydrophilic TOrCs and lower rejection was observed for nonionic hydrophobic TOrCs. With the exceptions of bisphenol A and DEET, all TOrCs that were detected in the DS were well rejected by the RO membrane. Overall, the UFO-MBR can operate sustainably and has the potential to be utilized for direct potable reuse applications.

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Section: Introductionmentioning

confidence: 99%

Removal of Trace Organic Chemicals and Performance of a Novel Hybrid Ultrafiltration-Osmotic Membrane Bioreactor

Holloway

Regnery

Nghiem

et al. 2014

Environ. Sci. Technol.

130

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“…The most common techniques for desalination of seawater include: distillation, freezing, membrane processes, and reverse osmosis [10]. Although positive results have been obtained with these methodologies, the price of gallon of desalinated water cannot be afforded by the entire population.…”

Section: Introductionmentioning

confidence: 99%

“…This allows us to distinguish between the processes that separate the water from the salt and the ones that really separate the salts from the water. For example: evaporation and crystallization separate water from salts, whereas membranes, exchange resins, and permeable membranes separate salts from water [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

On the Desalination of Saline Waters via Batch Adsorption with Spent Tea Leaves

G¹,

H²,

Japhe³

et al. 2017

J Pet Environ Biotechnol

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“…7 These draw solutes can be regenerated by various approaches, and they have certain advantages; however, they also involve significant drawbacks. For examples, among the proposed draw solutes ammonia-carbon dioxide has a high osmotic efficiency (up to 6 M) and thus a high draw ability 8,9 because of the high solubility and relatively low molecular weight (MW). However, the solution is corrosive; the regeneration process requires an intensive energy input, and the produced water has a high ammonia residue, which has limited usage.…”

Section: Introductionmentioning

confidence: 99%

Using UCST Ionic Liquid as a Draw Solute in Forward Osmosis to Treat High-Salinity Water

Zhong

Feng

Chen

et al. 2015

Environ. Sci. Technol.

104

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Using UCST ionic liquid as a draw solute in forward osmosis to treat high-salinity water Just Accepted "Just Accepted" manuscripts have been peer-reviewed and accepted for publication. They are posted online prior to technical editing, formatting for publication and author proofing. The American Chemical Society provides "Just Accepted" as a free service to the research community to expedite the dissemination of scientific material as soon as possible after acceptance. "Just Accepted" manuscripts appear in full in PDF format accompanied by an HTML abstract. "Just Accepted" manuscripts have been fully peer reviewed, but should not be considered the official version of record. They are accessible to all readers and citable by the Digital Object Identifier (DOI®). "Just Accepted" is an optional service offered to authors. Therefore, the "Just Accepted" Web site may not include all articles that will be published in the journal. After a manuscript is technically edited and formatted, it will be removed from the "Just Accepted" Web site and published as an ASAP article. Note that technical editing may introduce minor changes to the manuscript text and/or graphics which could affect content, and all legal disclaimers and ethical guidelines that apply to the journal pertain. ACS cannot be held responsible for errors or consequences arising from the use of information contained in these "Just Accepted" manuscripts. KAUST Repository 1Using UCST ionic liquid as a draw solute in forward osmosis to treat high-salinity water IL-rich phase: the water-rich phase was the produced water that contained a low IL concentration, and the IL-rich phase could be used directly as the draw solution in the next cycle of the FO process. The thermal stability, thermal-responsive solubility and UV-vis absorption spectra of the IL were also studied in detail.

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A novel ammonia—carbon dioxide forward (direct) osmosis desalination process

Cited by 864 publications

References 6 publications

Removal of Trace Organic Chemicals and Performance of a Novel Hybrid Ultrafiltration-Osmotic Membrane Bioreactor

Removal of Trace Organic Chemicals and Performance of a Novel Hybrid Ultrafiltration-Osmotic Membrane Bioreactor

On the Desalination of Saline Waters via Batch Adsorption with Spent Tea Leaves

Using UCST Ionic Liquid as a Draw Solute in Forward Osmosis to Treat High-Salinity Water

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