The Role of Ion Exchange Membranes in Membrane Capacitive Deionisation

Hassanvand, Armineh; Wei, Kajia; Talebi, Sahar; Chen, George Q.; Kentish, Sandra E.

doi:10.3390/membranes7030054

Cited by 92 publications

(56 citation statements)

References 129 publications

(190 reference statements)

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“…They were dried in an oven at 80°C and then weighed again. Finally, the percentage of water uptake was measured by calculating the weight difference between the wet and dry membranes using the following equation [19][20][21]: were dried in oven at 80°C to attain their dry weight (W dry ) . The IEC was determined using the following formula:…”

Section: Water Swellingmentioning

confidence: 99%

Development of thermoplastic polyurethane/polyaniline-doped membranes for the separation of glycine through electrodialysis

et al. 2020

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Recently, membrane-based separation processes, particularly electrodialysis, have attracted attention for the separation and purification of organic and amino acids from animal feedstock waste. In this study, cation exchange membranes were synthesized by making a composite of thermoplastic polyurethane and polyaniline (PANI) via the doping of various aromatic sulfonic acids, such as β-naphthol sulfonic acid and phenol sulfonic acid. The PANI was prepared using a standard method, which was further used in the composite blending at varying concentrations of 10%-20%. The impact of the concentration of PANI and the nature of the dopant on the membrane characteristics were comparatively studied. The membranes were analyzed by electric conductivity, water swelling, morphological studies (SEM), and thermogravimetric analysis. The membranes were used for the separation of glycine hydrochloride via electrodialysis.

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Section: Water Swellingmentioning

confidence: 99%

Development of thermoplastic polyurethane/polyaniline-doped membranes for the separation of glycine through electrodialysis

et al. 2020

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“…Regenerationsphase erfolgt in der MCDI der Einsatz von Ionenaustauschmembranen. Verglichen zur kapazitiven Deionisation können so höhere Entsalzungsleistungen erzielt werden – .…”

Section: Kühlwässerunclassified

Kühl‐ und Prozesswasserbehandlung in der Stahlindustrie

Wolters

Hubrich

Kozariszczuk

et al. 2019

Chemie Ingenieur Technik

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Zur Behandlung (säurehaltiger) Prozesswässer in der Stahlindustrie bietet die Membrantechnologie vielversprechendes Potenzial. Innovative Rohrmembranen wurden untersucht, bei der maßgeschneidert Polyelektrolyte mittels Layer‐by‐layer‐Beschichtung auf einer keramischen Supportmembran aufgetragen werden. Als weiteres Verfahren wird die membranunterstützte kapazitive Deionsiation für die Aufbereitung von Kühlwasser betrachtet, die nach dem Prinzip der elektrostatischen Sorption Ionen bei geringer Spannung abtrennt. Über die positiven Erfahrungen aus zwei industriellen Anwendungen wird berichtet.

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“…Ion exchange membranes (IEMs) are used in water/wastewater treatment, food manufacturing/processing, chemical synthesis and energy harvest and storage [7][8][9][10]. These plastic films are classified into cation exchange membranes (CEMs) and anion exchange membranes (AEMs).…”

Section: Introductionmentioning

confidence: 99%

Ion Exchange Dialysis for Aluminium Transport through a Face-Centred Central Composite Design Approach

et al. 2020

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An ion exchange dialysis (IED) is used in the recovery of aluminium from residue. In this paper, the face-centred central composite design (FC-CCD) of the response surface methodology (RSM) and desirability approach is used for experimental design, modelling and process optimization of a counter flow IED system. The feed concentration, feed flowrate, sweep flowrate and sweep concentration were selected as the process variables, with the Al transport across a Nafion 117 membrane as the target response. A total of 30 experimental runs were conducted with six centre points. The response obtained was analysed by analysis of variance (ANOVA) and fitted to a second-order polynomial model using multiple regression analysis. The actual R2 and standard deviation of the model are 0.9548 and 0.2932, respectively. Depending on the time zone of reference (24 h or 32 h), the highest enrichment of >1.50 was achieved. The designed variables were numerically optimized by applying the desirability function to achieve the maximum Al transport. The optimised condition values were found to be a feed concentration of 1600 ppm, feed flowrate of 61.76%, sweep flowrate of 37.50% and sweep concentration of 0.75 N for the 80% target response at 32 h. Overall, the model can be used to effectively predict Al recovery using the designed system.

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The Role of Ion Exchange Membranes in Membrane Capacitive Deionisation

Cited by 92 publications

References 129 publications

Development of thermoplastic polyurethane/polyaniline-doped membranes for the separation of glycine through electrodialysis

Development of thermoplastic polyurethane/polyaniline-doped membranes for the separation of glycine through electrodialysis

Kühl‐ und Prozesswasserbehandlung in der Stahlindustrie

Ion Exchange Dialysis for Aluminium Transport through a Face-Centred Central Composite Design Approach

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