EXPERIMENTAL ANALYSIS OF ELECTRODEIONIZATION A D.O.E APPROACH
Electro deionization is an ionic separation process that originally debuted 50 years ago. Initially, it was employed to separate metallic species from radioactive wastes. Electro deionization has been proved to be an environmentally beneficial method of purification, separation, and concentration. The EDI method is especially effective in terms of environmental protection, the production of ultra-pure water, and the recovery of some rare species. Weakly ionised ions, such as carbon dioxide and boron, are typically difficult to extract using membrane procedures such as reverse osmosis and electro dialysis reversal (EDR) The EDI has the benefit of continuously eliminating these germs in a highly efficient manner. The experimental investigation and mathematical modelling of an electro deionization process used for brackish water desalination in a four-compartment laboratory EDI cell, as well as the effect of varying concentrations (0.01 and 0.05 M) and cell voltage, are described in this paper (7, 14 V). The developed model includes anion exchange in the resin bed, which is controlled by the mass transport rate; ion transport in resin-free compartment solutions, membranes, and resin, which is based on the Nernst-Planck equation; and enhanced water dissociation at the anion membrane/solution interface. To compute the values, a pre-existing Simulation Model for Electro Deionization from COMSOL Multiphysics is utilised, which is then used in Design Expert 13 to perform statistical analysis of the system in order to achieve the best value and decrease the number of experiment runs.
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