The Effect of Current Density and pH of Cadmium Removal by Electrochemical Processes
Removal of cadmium from synthetically prepared solution using electrochemical processes is studied in the present study. To determine the optimum operation conditions, the effect of several parameters such as current density and initial solution pH have been investigated. Iron electrode was used as electrode materials. Experiments were carried out with different current densities ranging from 0.25 to 1.25 A/m2. It was observed that the removal of cadmium increases with increasing current densities. The distance of between electrodes was chosen as 5 mm. Initial cadmium concentrations was kept constant at 100 mg/L while other parameters such as current density and initial solution pH were investigated. Cadmium concentration in the solution was determined using Atomic absorption spectrophotometer. The experimentally obtained results were shown that electrochemical processes were achieved to cadmium removal (e.g. 99.99%) from synthetically prepared solution.
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