Removal of arsenic from wastewater has been crucial in recent days because of its high persistence and bioaccumulation causing serious health and environmental issues, listed in highly toxic pollutants. The review will cover broad perspectives of the electrodeionization (EDI) technique as a sustainable approach towards the wastewater detoxification by eliminating toxic arsenic. The electrodeionization employs hybrid electrodialysis/ion exchange method to eliminate arsenic ions from water before reusing processed water. The process utilizes anion/cation exchange resins that are persistently regenerated by an electric current, which significantly reduces the ions in water. Here, we will discuss module configuration, performance optimization and an overview of the EDI process and discuss the mechanism of ion separation. The applications and recent advances with respect to the removal/recovery of toxic arsenic using EDI to produce pure water are discussed. The future perspectives and sustainability aspects of EDI process for arsenic and other hazardous pollutant removal are critically evaluated with its potential applications. According to findings of this study, electrodeionization has the highest ion removal capacity of around 99 % when performed under low voltage range. © 2023 Elsevier B.V.
