Abstract:
In this work, the hardness removal efficiency was studied from groundwater taken Jaffna peninsula which was used to drinking. Electrochemical cell was constructed using six-iron electrodes. The electrodes were connected to a power supply that provides direct electrical current to the cell. Results showed that removal efficiency of 85% can be obtained at alkaline medium and electrical voltage of 20 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.
