Optimization of electrochemical process for removing sulphate from drinking water by taguchi model

Consumption of drinking water with high concentration of sulphatewas resulted in osmotic diarrhoea, especially in infants. The aim of this applied-analytical study was to investigate sulphate removal from urban drinking water using batch reactor electrochemical. I examined sulphate removal efficiency in different operating cases of the variables current density (1 to 8 mA/cm2), electrodes material (aluminium, copper, iron, steel, and zinc), pH (6 to 8), and time (5 to 40 min). I determined sulphate according to procedure detailed in standard methods. Batch experiments showed that the maximum sulphate removal obtained using zinc-copper as the anode-cathode electrode arrangement. The increase in current density from 1 to 8 mA / cm2 in at optimum electrode and pH increased sulphate removal from 71 to 100%. The increase in time from 5 to 40 min at optimum electrode and pH increased sulphate removal from 67 to 100%.