A systematic diagnosis of state of the art in the use of electrocoagulation as a sustainable technology for pollutant treatment: An updated review

• A review of electrocoagulation for a range pollutants. Electrode processes depend upon the electrode material. pollutant removal mechanisms can occur. Emerging challenges are system design and modeling. Electrocoagulation (EC) electrocoagulation-flotation (ECF) widespread interest owing to their effectiveness simultaneous abatement broad pollutants in drinking waste waters, but capability vary significantly depending on operating conditions. The effect conditions performance EC has been subject much debate over last few decades. This aims focus application EC/ECF under different conditions, emphasizing principal issues that compose foundation EC/ECF. It found current density (typically 1–20 mA/cm 2 ), type (Al or Fe), electrolysis time key process parameters influence performance. Although some have identified, recent studies begun reveal how underlying using nature pollutant. Key include charge neutralization, reduction–oxidation, precipitation/co-precipitation. development improved innovative cell designs, as well systematic modeling reactors, needed. Future research focused hybrid technologies with cost-effective energy supply may lead treatment options wastewater treatment.