Electrochemical Activation of Persulfate for Organic Pollution Control in Water

Abstract

Among various persulfate-activated processes, the electrochemical persulfate activation (E-PS) process has gained increasing interest in recent years. In this chapter, synergistic effects between electrolysis and persulfate are introduced. The operational factors (electrode type, current intensity, pH, water matrices, etc.), which could affect the removal efficiency of organic contaminants in the E-PS process, are discussed. Moreover, the organic contaminants’ degradation mechanisms as well as the generation paths of reactive oxygen species (ROS) in the E-PS process are summarized. At the end, future study trends on the E-PS process are proposed to give references for follow-up studies.