Electrodeionization

Electrical conductivity of flexible strongly acidic resin loaded with Cr (III) was investigated with an impedance spectroscopy method. The purpose of the work was to estimate the influence of hydrostatic pressure drop on the conductivity of the ion-exchanger bed, which had been compacted previously.

Three types of electrodialysis (ED) and electrodeionization (EDI) stacks are studied when treating NaCl solutions in the range of concentrations from 10−5 to 3 × 10−2 M: (1) with a non-conducting network spacer, (2) with a mixed ion-exchange monolayer bed, (3) with profiled membranes. The Sherwood n

Performances of electromembrane systems were investigated for removal of the hardness materials in a tap water. Six cells of ED, EDR, and EDIR systems with an electrode area of 12.5 cm ´ 8.0 cm were operated. The results showed scaling formation due to water dissociation on the surface of cation exc

In this study an experimental method for purification of a system containing a 30% caprolactam aqueous solution was attempted at room temperature. The impurities in the system were removed by using the continuous electrodeionization (EDI) device, which is an ion-exchange membrane stack with 40 dilut