Indirect desalination of Red Sea water with forward osmosis and low pressure reverse osmosis for water reuse

Yangali-Quintanilla, Victor; Li, Zhenyu; Valladares, Rodrigo; Li, Qingyu; Amy, Gary L.

doi:10.1016/j.desal.2011.06.066

Cited by 255 publications

(103 citation statements)

References 19 publications

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“…FO-RO can potentially reduce the overall cost and energy compared to standalone RO by driving the seawater salinity down in the FO dilution step [20,22,23]. Quintanilla et al estimated that approximately 1.3-1.5 kWh/m 3 is needed for an FO-RO system that dilutes seawater by drawing water from secondary wastewater effluent.…”

Section: Advantages and Potential Uses Of Fomentioning

confidence: 97%

“…However, the ''low energy and low cost'' feature of FO remains debatable because significant amount of energy may still be required to regenerate the draw solution. The integration of FO and RO for water purification have been proposed to further minimize the overall energy requirement of FO [20][21][22][23][24]. A hybrid system used renewable draw solution with high osmotic pressure such as seawater to draw water from a feed solution with lower osmotic potential such as treated wastewater or brackish water [20].…”

Section: Advantages and Potential Uses Of Fomentioning

confidence: 99%

See 1 more Smart Citation

Recent advancements in forward osmosis desalination: A review

Akther¹,

Sodiq²,

Giwa³

et al. 2015

Chemical Engineering Journal

395

203

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Section: Advantages and Potential Uses Of Fomentioning

confidence: 97%

Section: Advantages and Potential Uses Of Fomentioning

confidence: 99%

Recent advancements in forward osmosis desalination: A review

Akther¹,

Sodiq²,

Giwa³

et al. 2015

Chemical Engineering Journal

395

203

View full text Add to dashboard Cite

“…As previously stated, it is a robust membrane separation technique that boasts of good rejection of a broad range of pollutants and foulants and dissolved ions. It is therefore for these reasons that it's being researched and improved for water treatment applications such as seawater desalination [27][28][29], wastewater reclamation [30][31][32][33], industrial wastewater treatment [34], brine concentration [35], osmotic membrane bioreactors [36] and the use of the salinity gradient for power generation or osmotic dilution prior to reverse osmosis seawater desalination (using impaired water as feed and seawater as draw solution) [37].…”

Section: Forward Osmosis Membrane Processes For Water Treatmentmentioning

confidence: 99%

Forward Osmosis as a Pre-Treatment Step for Seawater Dilution and Wastewater Reclamation

Motsa¹,

Mamba²

2018

Osmotically Driven Membrane Processes - Approach, Development and Current Status

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This chapter presents the exploration of the combined process of wastewater reclamation and seawater dilution using forward osmosis (FO). Wastewater and seawater are the two most abundant water sources that are free of the hydrological cycle and could serve as an alternative potable water source. Forward osmosis was chosen as the an ideal pre-treatment step to dilute seawater prior to desalination at relatively lower energy demand and low fouling propensity. Membrane fouling behavior was studied and investigated using different feed compositions bearing fractions of effluent organic matter (EfOM). The negative surface charge of all organic foulants was reduced by the adsorption of calcium ions. Filtration of feed streams containing single, simple organic foulants revealed that alginate (polysaccharides) and bovine serum albumin (BSA) resulted in significant loss in process performance as a result of permeate flux reduction.The complex mixture of alginate, BSA and humic acid caused severe loss in membrane performance due to dominant favorable synergistic interactions between foulants and between foulants and membrane surface. The forward osmosis process presents a viable alternative for a simple and effective seawater dilution step using wastewater as the feed solution. Process performance can be improved by selecting a foulant resistant membrane with matching flux.

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“…FO utilises an osmotic pressure differential to drive the permeation of clean water across the membrane into the draw solution [11]. FO is highly attractive for water treatment due to its low fouling propensity [12], simple configuration, and low energy consumption [13,14]. Consequently, a number of investigations have focused on the use of FO in wastewater treatment.…”

Section: Introductionmentioning

confidence: 99%

Rejection of pharmaceutically active compounds by forward osmosis: Role of solution pH and membrane orientation

Xie

Price

Nghiem

2012

Separation and Purification Technology

145

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This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research and education use, including for instruction at the authors institution and sharing with colleagues. a b s t r a c tThe effects of feed solution pH and membrane orientation on water flux and the rejection of carbamazepine and sulfamethoxazole were investigated using a bench scale forward osmosis (FO) system. Water flux was pH-dependent in both membrane orientations. In addition, water flux increased while the specific reverse salt flux and hydrogen ion flux decreased with increasing feed solution pH. Water flux was lower in the normal FO mode compared to that in the pressure retarded osmosis (PRO) mode because osmotic pressure differential was reduced due to the internal concentration polarisation (ICP) phenomenon. The rejection of neutral carbamazepine was generally pH independent in both membrane orientations. The rejection of carbamazepine in the PRO mode was lower than that in the FO mode due to the higher concentration gradient caused by concentrative ICP in porous supporting layer. Steric hindrance was probably the main separation mechanism for the neutral carbamazepine in the FO process. On the other hand, the rejection of sulfamethoxazole was significantly affected by the feed solution pH in both membrane orientations. Variation in the rejection sulfamethoxazole could be attributed to the electrostatic repulsion between the negatively charged FO membrane surface and varying effective charge of the sulfamethoxazole molecule. Crown

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Indirect desalination of Red Sea water with forward osmosis and low pressure reverse osmosis for water reuse

Cited by 255 publications

References 19 publications

Recent advancements in forward osmosis desalination: A review

Recent advancements in forward osmosis desalination: A review

Forward Osmosis as a Pre-Treatment Step for Seawater Dilution and Wastewater Reclamation

Rejection of pharmaceutically active compounds by forward osmosis: Role of solution pH and membrane orientation

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