Exploring high charge of phosphate as new draw solute in a forward osmosis–membrane distillation hybrid system for concentrating high-nutrient sludge

Nguyen, Nguyen Cong; Nguyen, Hau Thi; Ho, Su-Thing; Chen, Shiao‐Shing; Ngo, Huu Hao; Guo, Wenshan; Ray, Saikat Sinha; Hsu, Hung-Te

doi:10.1016/j.scitotenv.2016.03.025

Cited by 52 publications

(19 citation statements)

References 38 publications

(44 reference statements)

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“…The Sodium phosphate has been used as a draw solute to dewater a simulated high-nutrient feed [85,86] with MD regeneration. Performance was found to be connected to the draw solution pH value (see figure 4).…”

Section: Inorganic Draw Solutesmentioning

confidence: 99%

Osmotic's potential: An overview of draw solutes for forward osmosis

et al. 2018

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Forward osmosis (FO) is a membrane separation process using a highly concentrated draw solution with high osmotic potential to draw water across a semi-permeable membrane from a feed source. This feed source may be seawater, wastewater or other natural or contaminated water sources. Unlike other membrane driven purification processes, the product is not clean water, but a diluted draw solution. As a result a second step is often needed to produce a pure water product. A major advantage of FO is that the low hydrodynamic pressure involved leads to lowered fouling of membranes and greater flux recovery after cleaning, as well as often providing a low energy process which can recover clean water from difficult or highly fouling sources. Selection of an appropriate and effective draw solution is essential for the practical operation of an FO process. This review will give an overview of the theoretical underpinnings of draw solution performance and a comprehensive summary of the current literature regarding the different types of draw solutions which have been investigated and their respective benefits and detriments. Highlights  Literature on draw solutions used in forward osmosis processes reviewed including the state-of-the-art  Overview of theoretical underpinning of draw solution performance  Up to date developments of draw solutes  Comparison of draw solute recovery methods

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Section: Inorganic Draw Solutesmentioning

confidence: 99%

Osmotic's potential: An overview of draw solutes for forward osmosis

et al. 2018

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“…A considerable number of studies have been made of the FO process integrated with membrane technologies (especially MD and RO) to regenerate the draw solution and to recover the extracted clean water [60][61][62][63][64][65][66][67][68][69]. In this integrated process, FO was used to extract water from various wastewater sources, such as sewage, produced water, human urine, effluent from the leather industry, and coal mine wastewater, to name a few.…”

Section: Wastewater Treatment and Reclamationmentioning

confidence: 99%

“…sewage, produced water, human urine, coal mine wastewater, etc.) and recovered from different draw solution regeneration technologies (mainly membrane-based such as NF, MD, and RO) [60][61][62][63][64][65][66][67]69]. Since the details of these integrated FO processes have already been discussed in the previous section, and regeneration of draw solution will be discussed in the following section, the readers are advised to refer to the cited references for further information on water recovery through integrated FO processes.…”

Section: Energy Generation and Resources Recoverymentioning

confidence: 99%

Unlocking the application potential of forward osmosis through integrated/hybrid process

Ang

Mohammad

Johnson

et al. 2020

Science of The Total Environment

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Study of forward osmosis (FO) has been increasing steadily over recent years with applications mainly focusing on desalination and wastewater treatment processes. The working mechanism of FO lies in the natural movement of water between two streams with different osmotic pressure, which makes it useful in concentrating or diluting solutions. FO has rarely been 2 operated as a stand-alone process. Instead, FO processes often appear in a hybrid or integrated form where FO is combined with other treatment technologies to achieve better overall process performance and cost savings. This article aims to provide a comprehensive review on the need for hybridization/integration for FO membrane processes, with emphasis given to process enhancement, draw solution regeneration, and pretreatment for FO fouling mitigation. In general, integrated/hybrid FO processes can reduce the membrane fouling propensity; prepare the solution suitable for subsequent value-added uses and production of renewable energy; lower the costs associated with energy consumption; enhance the quality of treated water; and enable the continuous operation of FO through the regeneration of draw solution. The future potential of FO lies in the success of how it can be hybridized or integrated with other technologies to minimize its own shortcomings, while enhancing the overall performance.

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“…55 At pH 9, the Na 3 PO 4 was providing a high water flux and mitigating salt leakage resulting from the formation of the high charge of phosphate and complexion. 56 Mono-ammonium phosphate (MAP) showed the highest biogas production while other fertilizers exhibited an inhibition effect on anaerobic activity with solute accumulation. 57 Trace organic contaminants (TrOC) transport through the FO membrane is governed by "solute-membrane" interaction, whereas that through the MD membrane is strongly correlated to TrOC volatility.…”

Section: Remarksmentioning

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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Exploring high charge of phosphate as new draw solute in a forward osmosis–membrane distillation hybrid system for concentrating high-nutrient sludge

Cited by 52 publications

References 38 publications

Osmotic's potential: An overview of draw solutes for forward osmosis

Osmotic's potential: An overview of draw solutes for forward osmosis

Unlocking the application potential of forward osmosis through integrated/hybrid process

Forward Osmosis in Wastewater Treatment Processes

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