The influence of current density on the electrochemical properties of anion-exchange membranes in electrodialysis of phenylalanine solution

Bukhovets, A.; Eliseeva, T. V.; Dalthrope, N.; Oren, Yoram

doi:10.1016/j.electacta.2011.09.025

Cited by 30 publications

(23 citation statements)

References 30 publications

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“…On another hand, operating at overlimiting current densities may lead to intense water dissociation at the membrane surface, which favors the deposition of organic and inorganic substances on it, fouling and scaling, respectively [ 65 , 83 , 84 ]: the cost of cleaning procedures and membrane replacement may vary to 40–50% for the electrodialytic processes [ 85 , 86 ]. However, Bukhovets et al [ 87 ] reported the influence of electroconvection on the prevention of organic fouling by the “washing” effect of the vortices, while Mikhaylin et al [ 88 ] demonstrated the positive effect of electroconvection on the attenuation of scaling on ion exchange membranes.…”

Section: Membrane Phenomenamentioning

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: Membrane Phenomenamentioning

confidence: 99%

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

Bazinet

Geoffroy

2020

Membranes

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“…The decrease in operation time was consistent with the variation of the glutamate migration rate, which exhibited an upward trend with an increase in the current density (Table 4). This behavior is attributed to the larger driving force, which accelerated the transfer rate of ionic species under the higher current densities [27][28][29]. The variation of the GA À concentration in the NaGA compartment over time is shown in Fig.…”

Section: Current Densitymentioning

confidence: 92%

The cleaner production of monosodium l -glutamate by resin-filled electro-membrane reactor

Chai

Wang

2015

Journal of Membrane Science

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“…The electrodes, or the tips of the capillaries, are placed above and below the membrane, and the distance between them can be varied. For example, a distance of 0.8 mm has been used to ensure that the electrodes are outside the laminar flow layer [202,203], and a distance of 0.5 mm has been used to avoid contact between the electrode and the membrane [204]; however, even a distance as small as 0.2 mm has been shown to be possible [205].…”

Section: Voltammetry and Chronopotentiometrymentioning

confidence: 99%

A review of in situ real-time monitoring techniques for membrane fouling in the biotechnology, biorefinery and food sectors

Rudolph

Virtanen

Ferrando

et al. 2019

Journal of Membrane Science

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Pressure-driven membrane processes are often used for the separation and purification of organic compounds originating from biomass. However, membrane fouling remains a challenge as these biobased streams have a very complex composition and comprise a high fouling tendency. Conventional, the fouling is monitored based on either a decrease in flux or an increase in pressure over time. Those conventional techniques provide no information on the location, composition or amount of fouling. As fouling is often cumulative, it will be detected as a loss of performance. Once fouling becomes irreversible, it is often not possible to clean the membrane without chemicals and the filtration/separation process has to be stopped eventually. In situ real-time monitoring of membrane fouling could provide dynamic information on the development of fouling, allowing optimization of the process. This paper reviews the state of the art in in situ monitoring techniques that could be applied to membrane processes in the biotechnology, biorefinery and food sectors and briefly reflects on the current awareness of in situ monitoring techniques among experienced industrial users of membrane processes. The physical principles as well as the strengths and weaknesses are addressed, and potentially, promising techniques are identified.

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The influence of current density on the electrochemical properties of anion-exchange membranes in electrodialysis of phenylalanine solution

Cited by 30 publications

References 30 publications

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

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

The cleaner production of monosodium l -glutamate by resin-filled electro-membrane reactor

A review of in situ real-time monitoring techniques for membrane fouling in the biotechnology, biorefinery and food sectors

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