A critical review on the treatment of reactive dye wastewater

• Published in: Desalination and Water Treatment
• Main Author: Fadzli J.; Hamid K.H.K.; Him N.R.N.; Puasa S.W.
• Format: Article
• Language: English
• Published: Desalination Publications 2022
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85134571039&doi=10.5004%2fdwt.2022.28028&partnerID=40&md5=6c9c9ed06dbe03fdf5f1426273b49c68

Through generations, reactive dyes are known to be one of the most used dyes in the textile industry and are the main source of coloured wastewater. Inarguably, the use of reactive dyes in textile industries has a high probability of bringing potential risk to human health and the environment due to their characteristics being noxious, carcinogenic, and mutagenic. Growing concern about the impact on human life and the environment has led to much research on the treatment of textile wastewater. Throughout the years, research on wastewater treatment has continuously been developed from physico-chemical to biological, electrochemical, conventional, and advanced oxidation methods in which each method offers several advantages and disadvantages in the removal of dyes. However, the existing methods alone are insufficient as textile wastewater may contain a high concentration of chemical oxygen demand and may be difficult to degrade. Due to this, research on further improving the treatment of textile wastewater has constantly been developed. Recently, the use of hybrid or combined treatment processes has raised interest among researchers in the treatment of textile wastewater. It is expected that this technology will be significant in the future, given the latest findings on the removal of reactive dyes from wastewater. This paper presents brief research on reactive dyes and reviews the advantages, disadvantages, and potentials of the current methods employed in the treatment of reactive dye wastewater. © 2022 Desalination Publications. All rights reserved.