ABSTRACT:
The aim of this study on the electro coagulation process, is to obtain the optimum values, for retention time, space between the electrodes and the electric current intensity, that can be used to yield the best result when treating sea water by this method. this was done by constructing a pilot -scale EC reactor and applying a set of electric currents (under a temperature of 20 degrees) through the electrodes and changing the retention time and the distance between them.
The removal percentages of the parameters that the study aimed to reduce were as the following: total hardness= 17.73%, Calcium hardness= 30.94%, total alkalinity= 90.78%, bicarbonate = 90.78%, calcium= 30.77%, sulfates = 49.75%; these results show that the treated seawater with the optimum electrocoagulation setup obtained from this study will cause less calcification when passing through the R.O filters making it easier to obtain potable water from the seawater.