Electrolytic Removal of Zinc Using A Flow-Through Cell With Amalgamated Copper Screen Cathode


The aim of this work was to establish an electrolytic method for the removal ofzinc from waste water using a flow-through cell with amalgamated copper screencathode .The performance of the electrolytic reactor were investigated by using differentof electrolyte flow rates (60, 120, 180, 240, 320L/h) and different initial concentration ofzinc solutions(48, 96, 150mg/L).A synthetic solution was processed using boric acid(0.1M) plus potassium chloride (0.1M) as the supporting electrolyte .The electrolytic cellemployed a constant potential of -1.4V vs. SCE in the controlled potential mode.Dimensionless Sherwood and Reynolds numbers were correlated to characterizethe mass transport properties of the reactor, and they where fitted to the equation:Sh = 0.6835Re0.3895 Sc1/ 3 For 1< Re < 6.5, 700 < Sc < 1390