“…In many cases, industrial wastewater inhibit the degradation ability of the biological treatments probably due to its effluent character that commonly contains several organic and inorganic pollutants such as phenols, solvents, aromatics, organic matter, metals, dyes, nitrate, nitrite, chloride and salts [6,7,[21][22][23][24]. In order to solve this problem and increase the efficiency, some authors coupled them with ozono, photocatalysis [4] filtrations [22], Fenton reactions [25,26], chemical coagulants [27,28] and lastly Fe and Al electrocoagulantion [25,29,30]. Electrocoagulations consists in the formation of metallic hydroxide such as Fe(OH) 2 and Al(OH) 3 within wastewater by electrodissolution of a soluble anode, this method frequently uses electrodes made of iron (Fe) or aluminum (Al); four phases can be observed: firstly an electrolytic reaction at electrode surfaces, secondly the formation of coagulants in the aqueous phase, then the adsorption of soluble or colloidal pollutants on metallic coagulants, and finally the removal by sedimentation or flotation [25,31,32].…”