Conversion and pre-concentration of SWRO reject brine into high solubility liquid salts (HSLS) by using electrodialysis metathesis

Chen, Qing-Bai; Ren, Hang; Tian, Zhenhua; Sun, Lidong; Wang, Jianyou

doi:10.1016/j.seppur.2018.12.018

Cited by 53 publications

(19 citation statements)

References 33 publications

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“…Although known for their high cost, IEMs would only represent around 25% of the total investment in the EDM process [ 148 , 151 ]. Several studies determined suitable economic feasibility at lab scale [ 144 , 147 , 148 , 151 ], but EDM has also been successfully implemented at pilot scale as part of a Zero Liquid Discharge Desalination (ZELDA) project as well as in combination with reverse osmosis (RO) for water purification, leading us to expect further developments of this technology in the near future [ 153 , 154 ].…”

Section: Recent Technological Developments Based On Ed Membrane Phmentioning

confidence: 99%

Electrodialytic Processes: Market Overview, Membrane Phenomena, Recent Developments and Sustainable Strategies

Bazinet

Geoffroy

2020

Membranes

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In the context of preserving and improving human health, electrodialytic processes are very promising perspectives. Indeed, they allow the treatment of water, preservation of food products, production of bioactive compounds, extraction of organic acids, and recovery of energy from natural and wastewaters without major environmental impact. Hence, the aim of the present review is to give a global portrait of the most recent developments in electrodialytic membrane phenomena and their uses in sustainable strategies. It has appeared that new knowledge on pulsed electric fields, electroconvective vortices, overlimiting conditions and reversal modes as well as recent demonstrations of their applications are currently boosting the interest for electrodialytic processes. However, the hurdles are still high when dealing with scale-ups and real-life conditions. Furthermore, looking at the recent research trends, potable water and wastewater treatment as well as the production of value-added bioactive products in a circular economy will probably be the main applications to be developed and improved. All these processes, taking into account their principles and specificities, can be used for specific eco-efficient applications. However, to prove the sustainability of such process strategies, more life cycle assessments will be necessary to convince people of the merits of coupling these technologies.

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Section: Recent Technological Developments Based On Ed Membrane Phmentioning

confidence: 99%

Electrodialytic Processes: Market Overview, Membrane Phenomena, Recent Developments and Sustainable Strategies

Bazinet

Geoffroy

2020

Membranes

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“…The complete salt production scheme (SWRO-ED-crystallizer) was competitive with the SWRO desalination only in some Middle-East countries, where the salt price is higher than 104.5 $/ton. EDM of BWRO [507] or SWRO [41] brine was proposed. The complete conceptual scheme of SWRO-EDM is depicted in Figure 28.…”

Section: Mg 2+mentioning

confidence: 99%

“…Electrodialysis metathesis (EDM) [ 40 , 41 ] has a four-compartment repeating unit which includes two diluate and two concentrate channels, all being different from each other, divided by two AEMs and two CEMs ( Figure 3 e). The feed (D1) contains a salt or a salts mixture, while a substitution solution flows along the other diluate channel (D2).…”

Section: Electrodialysis Process Fundamentalsmentioning

confidence: 99%

“…EDM of BWRO [ 507 ] or SWRO [ 41 ] brine was proposed. The complete conceptual scheme of SWRO-EDM is depicted in Figure 28 .…”

Section: Waste Brine From Desalination or Ion Exchangementioning

confidence: 99%

“… Conceptual scheme of SWRO-EDM for water and salts recovery. Reproduced with permission from [ 41 ], published by Elsevier, 2019. …”

Section: Figurementioning

confidence: 99%

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Electrodialysis Applications in Wastewater Treatment for Environmental Protection and Resources Recovery: A Systematic Review on Progress and Perspectives

et al. 2020

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This paper presents a comprehensive review of studies on electrodialysis (ED) applications in wastewater treatment, outlining the current status and the future prospect. ED is a membrane process of separation under the action of an electric field, where ions are selectively transported across ion-exchange membranes. ED of both conventional or unconventional fashion has been tested to treat several waste or spent aqueous solutions, including effluents from various industrial processes, municipal wastewater or salt water treatment plants, and animal farms. Properties such as selectivity, high separation efficiency, and chemical-free treatment make ED methods adequate for desalination and other treatments with significant environmental benefits. ED technologies can be used in operations of concentration, dilution, desalination, regeneration, and valorisation to reclaim wastewater and recover water and/or other products, e.g., heavy metal ions, salts, acids/bases, nutrients, and organics, or electrical energy. Intense research activity has been directed towards developing enhanced or novel systems, showing that zero or minimal liquid discharge approaches can be techno-economically affordable and competitive. Despite few real plants having been installed, recent developments are opening new routes for the large-scale use of ED techniques in a plethora of treatment processes for wastewater.

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Ion Exchange Membranes

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Conversion and pre-concentration of SWRO reject brine into high solubility liquid salts (HSLS) by using electrodialysis metathesis

Cited by 53 publications

References 33 publications

Electrodialytic Processes: Market Overview, Membrane Phenomena, Recent Developments and Sustainable Strategies

Electrodialytic Processes: Market Overview, Membrane Phenomena, Recent Developments and Sustainable Strategies

Electrodialysis Applications in Wastewater Treatment for Environmental Protection and Resources Recovery: A Systematic Review on Progress and Perspectives

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