Electrochemical technologies have regained their importance worldwide during the past two decades. There are many companies supplying electrochemical method treatment facilities for metal recoveries, treating drink water and various wastewaters. Now days, Electrochemical technologies are compared with other process by means of cost, efficient and compact. The development, design and application of electrochemical technologies for waste treatment have been investigated and some well known processes. Electrochemical processes are promising and alternative methods for treatment of organic wastes and waste water. Mediated electrochemical oxidation (MEO) is one of the sustainable process for waste treatment and has been employed for organic mineralization reactions. In the MEO, a metal ion capable of exhibiting redox behavior is oxidized from lower oxidation state to higher oxidation state by means of electrochemical cell and subsequently used as an oxidant for mineralizing the toxic organic waste into CO2 and water. Many redox mediators such as cerium, silver, cobalt, manganese etc are used in the various electrolyte mediums for this application.