Mini-Review on Electro-coagulation for Wastewater Treatment

The electro-coagulation (EC) system has been investigated as a promising solution for wastewater treatment. Due to its excellent benefits such as environmentally friendly effects and cost-effective operation, it has garnered significant interest recently, resulting in the publication of hundreds of research articles. These articles delve not only into fundamental studies based on mathematical modeling and experiments but also into its applications. This study reviews the EC system for its fundamental working principles and key features, recent advancements, and its status towards industrial applications. Additionally, it explores how EC treatment can be applied to various types of pollutants, both organic and inorganic. System integration of EC with other treatment subsystems is a promising method to complement EC function, leading to a much more efficient method for industrial application. This mini-review will provide key information on the EC system and the status of research, development, and application of EC systems.