New outlook on hazardous pollutants in the wastewater environment: Occurrence, risk assessment and elimination by electrodeionization technologies

Over the decades, water contamination has increased substantially and has become a severe global issue. Degradation of natural resources is taking place at an alarming rate as a result of the use of chemicals like dyes, heavy metals, fertilizers, pesticides, and many more, necessitating the development of long-term pollution remediation methods/technologies. As a new development in the field of environmental engineering, electro-deionization incorporates both traditional ion exchange and electrodialysis. This communication provides an overview of hazardous contaminants such as dyes, heavy metals, fertilizers, and pesticides, as well as their converted forms, which are present in water. It highlights the risks of water pollutants to public health and the environment. Various electrochemical methods with a focus on electrodeionization for the treatment of waste-water and removal of hazardous contaminants are outlined in this review. Additionally, this review discusses the challenges and the future outlook for the development in this field of research.

Automated summary

Over the decades, water contamination has become a severe global issue due to the use of chemicals. Electro-deionization, as a new development in environmental engineering, combines traditional ion exchange and electrodialysis to address this problem. This review provides an overview of hazardous contaminants in water, their converted forms, and their risks to public health and the environment. It also outlines various electrochemical methods, particularly electrodeionization, for wastewater treatment and removal of hazardous contaminants, and discusses the challenges and future outlook for this field of research.