2016
DOI: 10.1016/j.desal.2015.09.011
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How physico-chemical and surface properties of cation-exchange membrane affect membrane scaling and electroconvective vortices: Influence on performance of electrodialysis with pulsed electric field

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Cited by 68 publications
(50 citation statements)
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“…Membrane electrical conductance (G) was measured with a specially designed cell (Laboratoire des Matériaux Échangeurs d’Ions, Créteil, France) following the procedure described by Mikhaylin et al [ 27 ]. The NaCl reference solution was 0.5 M. The membrane conductivity was calculated according to Lteif et al [ 28 ] and Lebrun et al [ 29 ] (Equation (1)): R m = R m+s − R s where R m is the electrical resistance of the membrane (in Ω), R m+s the electrical resistance of the membrane and the reference solution measured together (in Ω) and R s the electrical resistance of the reference solution (in Ω).…”
Section: Methodsmentioning
confidence: 99%
“…Membrane electrical conductance (G) was measured with a specially designed cell (Laboratoire des Matériaux Échangeurs d’Ions, Créteil, France) following the procedure described by Mikhaylin et al [ 27 ]. The NaCl reference solution was 0.5 M. The membrane conductivity was calculated according to Lteif et al [ 28 ] and Lebrun et al [ 29 ] (Equation (1)): R m = R m+s − R s where R m is the electrical resistance of the membrane (in Ω), R m+s the electrical resistance of the membrane and the reference solution measured together (in Ω) and R s the electrical resistance of the reference solution (in Ω).…”
Section: Methodsmentioning
confidence: 99%
“…One of the main mechanisms of overlimiting mass transfer is electroconvection, which not only increases the effective transport of salt ions [8] but also partially suppresses the water splitting at the interface [9], which impedes the process of precipitation in the electrodialyzer chambers [10].…”
Section: Introductionmentioning
confidence: 99%
“…However, the effect of the surface properties of ion-exchange membranes on the process efficiency has not been studied enough. It was shown in [10] that the hydrophobicity and heterogeneity of the ion-exchange membrane surface lead to the development of electroconvection. This results in an increase in the rate of demineralization at PEF modes.…”
Section: Introductionmentioning
confidence: 99%
“…Firstly, PEF technique was experimented to reduce the concentration polarization (CP) which is created when the ionic concentration at one side of the membrane is very low while the ionic concentration is very high on the other side of the same membrane, and increase the ED power efficiency [65]. The reducing of CP leaded also to the decrease of scaling and fouling tendencies especially in the case of ions, charged molecules and colloidal particles and important applications of pulsed current mode emerged as means to mitigate the formation of organic gel or inorganic crystalline films on membrane surface or modulate the mineral membrane fouling growth [66][67][68][69][70][71][72][73][74][75]. In particular, it was found that the use of pulsation with a frequency of the order of 0.1 Hz and an extended relaxation time allows the mitigation of organic fouling in the systems containing humate, lactate, bovine serum albumin (BSA) or whey protein [68,[76][77][78][79].…”
Section: Pulsed Electric Field (Pef)mentioning
confidence: 99%