Osmotically driven membrane process for the management of urban runoff in coastal regions

Li, Zhenyu; Linares, Rodrigo Valladares; Abu-Ghdaib, Muhannad; Zhan, Tong; Yangali-Quintanilla, Victor; Amy, Gary L.

doi:10.1016/j.watres.2013.09.028

Cited by 36 publications

(21 citation statements)

References 37 publications

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“…Thus, the cost of the entire desalination process is also reduced. These studies show that FO desalination integrates fresh water treatment operations from wastewater treatment and seawater, providing a water-energy nexus for coastal cities and a promising process [54,76].…”

Section: Desalinationmentioning

confidence: 84%

“…In the US, a company has installed a pilot FO plant for the recycling of dye containing wastewater from textile and carpet mill processes [53]. In another study, the FO process was used to recover heavy metals from industrial wastewaters [54]. The effects of hydrodynamic conditions, organic pollution, temperature, and FS and DS properties on the separation efficiency were investigated.…”

Section: Water/wastewater Treatmentmentioning

confidence: 99%

“…In the indirect FO desalination, there is a degraded matrix, such as wastewater or urban stormwater runoff, on the FS side, while DS is using high salinity solution [54,76]. Potential DS in indirect FO desalination is seawater and brackish water.…”

Section: Desalinationmentioning

confidence: 99%

See 2 more Smart Citations

Forward Osmosis Membranes – A Review: Part II

Eyvaz¹,

Arslan²,

İmer³

et al. 2018

Osmotically Driven Membrane Processes - Approach, Development and Current Status

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Forward osmosis (FO) is a technical term describing the natural phenomenon of osmosis: the transport of water molecules across a semipermeable membrane by osmotic pressure from a feed solution (FS) to a draw solution (DS). The diluted DS is then reconcentrated to recycle the draw solutes as well as to produce purified water. As the driving force is only the osmotic pressure difference between two solutions, meaning that there is no need to apply an external energy, this results in low fouling propensity of membrane and minimization of irreversible cake forming, which are the main problems controverted by membrane applications, especially in biological treatment systems (e.g., FO membrane bioreactor (FO-MBR)). The purpose of the book chapter is to bring an overview on the FO membrane manufacturing, characterizing and application area at laboratory or full scales. This book chapter is published in two parts. In the second part, which appears here, characterization of mass transport in FO membranes, fouling mechanisms and foulants on FO membranes in naturally asymmetric structure and application areas of FO membranes in the literature are mentioned. Cutting-edge technologies on FO studies are comprehensively reviewed and following major and minor titles are stated truly on the new technologies.

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Section: Desalinationmentioning

confidence: 84%

Section: Water/wastewater Treatmentmentioning

confidence: 99%

See 1 more Smart Citation

Forward Osmosis Membranes – A Review: Part II

Eyvaz¹,

Arslan²,

İmer³

et al. 2018

Osmotically Driven Membrane Processes - Approach, Development and Current Status

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“…The FO and RO processes have been used to treat a variety of wastewaters such as municipal wastewater [14,16,18,20], oily wastewater [21,22], produced water [23], tannery wastewater [24], dairy wastewater [25], olive mill wastewater [26], as well as synthetic wastewater [8,27].…”

Section: Applications Of Ro and Fo Membranes In Wastewater Treatmentmentioning

confidence: 99%

Applications of Reverse and Forward Osmosis Processes in Wastewater Treatment: Evaluation of Membrane Fouling

Mecha¹

2018

Osmotically Driven Membrane Processes - Approach, Development and Current Status

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Although reverse osmosis (RO) process is widely used for wastewater reclamation, it requires high amount of energy that has a major effect on the economic effectiveness of the process. Furthermore, RO membranes are susceptible to fouling, which further limits their effectiveness and increases the costs due to the need for frequent cleaning.Consequently, the use of osmotically driven membrane separation processes such as forward osmosis (FO) has gained increasing consideration, although its uptake in wastewater remediation is still low. This is because the FO process, unlike the RO process, is operated by the osmotic gradient between the feed and draw solutions; therefore, it requires minimal or no hydraulic pressure. Hence, it has unique advantages, such as possibility of low fouling, and high water recovery. Nonetheless, the long-standing problem of membrane fouling still remains a major challenge even in the performance of FO processes especially when treating raw wastewaters, which have various contaminants. Furthermore, the mechanism of fouling in FO process has been found to be different from an RO process, and there is need for further studies to elucidate the differences of FO and RO fouling. These aspects are evaluated in this review.

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“…seawater/brackish water) as the DS and a poor-quality water source such as wastewater effluent or urban storm water runoff as FS. 44,45 The diluted seawater/brackish water DS can then be desalinated using low pressure reverse osmosis (LPRO). The FO-LPRO hybrid process reduces the cost of the total desalination process compared to pure RO 33 .…”

Section: Desalinationmentioning

confidence: 99%

Forward Osmosis in Wastewater Treatment Processes

Korenak¹,

Basu²,

Balakrishnan³

et al. 2017

ACSi

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In recent years, membrane technology has been widely used in wastewater treatment and water purification. Membrane technology is simple to operate and produces very high quality water for human consumption and industrial purposes. One of the promising technologies for water and wastewater treatment is the application of forward osmosis. Essentially, forward osmosis is a process in which water is driven through a semipermeable membrane from a feed solution to a draw solution due to the osmotic pressure gradient across the membrane. The immediate advantage over existing pressure driven membrane technologies is that the forward osmosis process per se eliminates the need for operation with high hydraulic pressure and forward osmosis has low fouling tendency. Hence, it provides an opportunity for saving energy and membrane replacement cost. However, there are many limitations that still need to be addressed. Here we briefly review some of the applications within water purification and new developments in forward osmosis membrane fabrication.

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Osmotically driven membrane process for the management of urban runoff in coastal regions

Cited by 36 publications

References 37 publications

Forward Osmosis Membranes – A Review: Part II

Forward Osmosis Membranes – A Review: Part II

Applications of Reverse and Forward Osmosis Processes in Wastewater Treatment: Evaluation of Membrane Fouling

Forward Osmosis in Wastewater Treatment Processes

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