Fenton, Photo-Fenton, and Electro-Fenton Systems for Micropollutant Treatment Processes

The existence of micropollutants in ground and surface water indicates the limitation of conventional wastewater treatment processes. The advanced oxidation process (AOP), particularly the Fenton process, could be a promising solution to eliminate these emerging contaminants. Fenton chemistry and related technologies, such as electro-Fenton and the photo-Fenton process, have demonstrated enormous potential for the future. In this chapter, we attempted to describe the complex mechanisms behind the Fenton and modified Fenton processes, as well as the critical parameters affecting their efficacy in removing organic micropollutants from wastewater. A considerable effort has been made to enlighten the reader on current state-of-the-art technology, the breadth of possible applications, and the remaining barriers to commercializing these processes to eliminate emerging contaminants from water.