Hardness removal from drinking water using electrochemical cell

الملخص EN

In this work, the removal of hardness was studied from tap water taken from Aljadriya municipal water network-Baghdad.

A parallel plate electrochemical cell was constructed using two graphite electrodes as anode, and three aluminum electrodes as cathodes.

The electrodes were connected to a power supply that provides direct electrical current to the cell.

Results showed that a removal efficiency of 85% can be obtained at pH of 7.

5and electrical voltage of 28.

5 volt with retention time of 60 minutes.

The high efficiency for hardness removal suggested that the electrochemical technique might be used as an alternative technique for hardness removal.