In this research thin film heterogeneous cation exchange membrane was prepared by interfacial polymerization of polyacrylic acid-co-iron nickel oxide nanoparticle son PVC based substrate. Spectra analysis confirmed graft polymerization conclusively. The SEM images showed that polymerized layer covers the membranes by simple gel network entanglement. Results exhibited that membrane water content...

This paper shows the possibility of using a microheterogeneous model to describe properties ion-exchange membranes and calculate characteristics reverse electrodialyzer from data obtained. We studied eight samples heterogeneous cation exchange (two each type membrane). The differed in year issue storage conditions. It is shown that for MK-40 MA-41, samples' can differ significantly. counterions...

The neutral exchange between Na+ or K+ ions and protons across the mitochondrial membrane was studied by means of passive swelling in isotonic acetate salts. The selectivity for Na+ over K+ was approximately 50: 1. The rate of Na+-dependent swelling mediated by the natural exchange system was sensitive to pH and inhibited 70% or more by 20 rnM Mgr+. Physiological Mg 2+ levels, however, inhibite...

Salinity gradient energy is a prominent alternative and maintainable source, which has considerable potential. Reverse electrodialysis (RED) one of the most widely studied methods to extract this energy. Despite progress in research, optimization RED process still ongoing. In study, effects number membrane pairs, ratio salinity feed velocity on power generation via reverse system were investiga...

Heterogeneous proton exchange membranes (PEM) are synthesized using the dry phase inversion technique. The casting solutions are prepared by dispersing a finely ground cation exchange resin particle in N,N-dimethylacetamide (DMAc) solution of polyvinyl-chloride (PVC). Results show that ion exchange capacity is increased with the addition of 1 %-wt nanosilica (from 0.14 to 0.27 meq/g) while it i...

a single column cation exchanger resin was used to eliminate cations from renet cheese whey, with particular reference to the improvement of taste and flavor. ten panelists were convened to assess the contribution of the mineral components to the salty taste of whey, judging on the basis of taste, flavor and color. the organoleptic characteristics of untreated whey were arbitrarily assigned...

Electrode potential measurements have been applied to study electrical characteristics like transport numbers, permselectivity & fixed charged density of zirconium phosphoborate ion exchange membranes. The potential measurements were made across the cation exchange membrane maintained at 27±0.1 °C, using halide and nitrate salts of alkali and alkaline earth metals as electrolytes. The membrane ...

Electrodiffusion of ions in both cation (CEM) and anion exchange membranes (AEM) has been studied with theoretical calculations experimental studies. Calculations are based on the Finite Element Method (FEM) using COMSOL Multiphysics® software. Nernst-Planck equations solved multi-ionic systems where no closed form solutions available. Simulations compared laboratory-scale experiments terms cur...