Abstract

Chemical coagulation is commonly used in raw water and wastewater treatment plants for the destabilization of pollutants so that they can be removed in the subsequent separation processes. The most commonly used coagulation chemicals are aluminum and iron metal salts. Electrocoagulation (EC) technology has also been proposed for the treatment of raw waters and wastewaters. With this technology, metal cations are produced on the electrodes via electrolysis, and these cations form various hydroxides in the water depending on the water pH. In addition to this main reaction, several side reactions, such as hydrogen bubble formation and the reduction of metals on cathodes, also take place in the cell. In this research, the applications of EC were investigated in raw water treatment and wastewater applications.

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