Process Economic Evaluation of Resource Valorization of Seawater Concentrate by Membrane Technology

Zhang, Wei; Miao, Mengjie; Pan, Jing; Sotto, Arcadio; Shen, Jiangnan; Gao, Congjie; Bruggen, Bart Van der

doi:10.1021/acssuschemeng.7b00555

Cited by 48 publications

(35 citation statements)

References 35 publications

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“…BPM can generally be formed as a single layer (film) BPM − or multilayer materials. ,,,, Single-layer BPM is prepared by a subsequent introduction of anionic and cationic functionalities to each side of the preselected base material. However, most of the existing BPMs are multilayered structures that are prepared from commercial or tailor-made IEMs.…”

Section: Assessment Of Methods For Bpm and Interface Preparationmentioning

confidence: 99%

“…While the former technique is suitable for small-scale batch-type processes, the latter are widely used in industries, owing to screening large dispersion batches for quality and performance, high production rates in continuous processes, and potentially good control of the physicochemical properties of the resulting membranes. As shown in Table S1, most of the outer layers of the BPM (AEMs and CEMs) are prepared by solution casting. ,, Unlike simple lamination and hot-pressing, BPM preparation by casting the ionomer layer or the interfacial polymer layer is expected to ensure good adhesion between the BPM components.…”

Section: Assessment Of Methods For Bpm and Interface Preparationmentioning

confidence: 99%

“…As discussed earlier, the water dissociation rate (at a given potential) occurring at the interface of a BPM can be enhanced by introducing a catalytic layer at the BPM junction. Some of the most commonly used catalysts include inorganic materials (like metal hydroxides , or graphene oxides , and heavy metal ion complexes like those of iron, chromium, and zirconium , ). In particular, GO-based materials have acquired a huge interest due to their high CSD, where the carboxylate groups exhibited the highest reactivity toward the water dissociation. − Water dissociation on the metal oxides and hydroxides is activated by the adsorption of water onto the surface followed by proton transfer from the water to the adjacent oxygen atom, resulting in hydroxide ions.…”

Section: Bpm Interfacial Structure and Morphologiesmentioning

confidence: 99%

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Bipolar Membrane and Interface Materials for Electrochemical Energy Systems

Tufa

Blommaert

Chanda

et al. 2021

ACS Appl. Energy Mater.

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Bipolar membranes (BPMs) are recently emerging as a promising material for application in advanced electrochemical energy systems such as (photo)electrochemical CO2 reduction and water splitting. BPMs exhibit a unique property to accelerate water dissociation and ionic separation that allows for maintaining a steady-state pH gradient in electrochemical devices without a significant loss in process efficiency, thereby allowing a broader catalyst material selection for the respective oxidation and reduction reactions. However, the formation of high-performance BPMs with significantly reduced overpotentials for driving water dissociation and ionic separation at conditions and rates that are relevant to energy technologies is a key challenge. Herein, we perform a detailed assessment of the requirements in base materials and optimal design routes for the BPM layer and interface formation. In particular, the interface in the BPM presents a critical component with its structure and morphology influencing the kinetics of water dissociation reaction governed by both electric field and catalyst driven mechanisms. For this purpose, we present, among others, the advantages and drawbacks in the utilization of a bulk heterojunction formed in 3D structures that recently have been reported to demonstrate a possibility of designing stable and high-performance BPMs. Also, the outer layers of a BPM play a crucial role in kinetics and mass transport, particularly related to water and ion transport at electrolyte–membrane and membrane–catalyst interfaces. This work aims at identifying the gaps in the structure–property of the current monopolar materials to provide prospective facile design routes for BPMs with excellent water dissociation and ionic separation efficiency. It extends to a discussion about material selection and design strategies of advanced BPMs for application in emerging electrochemical energy systems.

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Section: Assessment Of Methods For Bpm and Interface Preparationmentioning

confidence: 99%

Section: Assessment Of Methods For Bpm and Interface Preparationmentioning

confidence: 99%

Section: Bpm Interfacial Structure and Morphologiesmentioning

confidence: 99%

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Bipolar Membrane and Interface Materials for Electrochemical Energy Systems

Tufa

Blommaert

Chanda

et al. 2021

ACS Appl. Energy Mater.

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“…Other SED-based approaches were studied to generate acid and base using wastewaters from chemical or desalination plants which could then be resupplied in commodity chemicals. SED-EDBM processes reached a current efficiency of 70% and 1.75 kWh/kg NaOH in terms of energy consumption [ 316 ]. The monovalent-enriched and divalent enriched streams produced by SED led to HCl and H 2 SO 4 , respectively, after EDBM.…”

Section: Integration Of Ed Technologies In New Sustainable Strategmentioning

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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“…Electrodialysis is a method of desalination, concentration, and fractionation of solutions based on the selective transport of ions through charged membranes under the action of an external electric field [1]. Electrodialysis with ion exchange membranes is traditionally used in water treatment [2], production of acids and bases [3,4], recycling of technological solutions [5], correction of food composition [6,7], and table salt production [8]. In the simplest case, electrodialysis purification means the removal of any ions, i.e., a decrease in the total salinity [1].…”

Section: Introductionmentioning

confidence: 99%

Characterization of MK-40 Membrane Modified by Layers of Cation Exchange and Anion Exchange Polyelectrolytes

et al. 2020

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Coating of ion exchange membranes used in electrodialysis with layers of polyelectrolytes is a proven approach that allows for the increasing of the limiting current, the suppressing of sedimentation, the controlling of the intensity of generation of H+ and OH− ions, and also the improving of monovalent selectivity. However, in the case when two materials with the opposite sign of the charge of fixed groups come in contact, a bipolar boundary is created that can cause undesirable changes in the membrane properties. In this work, we used a MK-40 heterogeneous membrane on the surface of which a layer of polyethyleneimine was applied by adsorption from a solution as a model of heterogeneous membranes modified with oppositely charged polyelectrolyte. It was found that, on one hand, the properties of modified membrane were beneficial for electrodialysis, its limiting current did not decrease and the membrane even acquired a barrier to non-selective electrolyte transport. At the same time, the generation of H+ and OH− ions of low intensity arose, even in underlimiting current modes. It was also shown that despite the presence of a layer of polyethyleneimine, the surface charge of the modified membrane remained negative, which we associate with low protonation of polyethyleneimine at neutral pH.

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Process Economic Evaluation of Resource Valorization of Seawater Concentrate by Membrane Technology

Cited by 48 publications

References 35 publications

Bipolar Membrane and Interface Materials for Electrochemical Energy Systems

Bipolar Membrane and Interface Materials for Electrochemical Energy Systems

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

Characterization of MK-40 Membrane Modified by Layers of Cation Exchange and Anion Exchange Polyelectrolytes

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