DOI: https://doi.org/10.55373/mjchem.v24i3.113

Keywords: Dye; wastewater; advanced oxidative process, ozonation; hybrid ozonation process

Abstract

Remediation of dye wastewater is necessary to prevent further pollution of the world’s waterways. Dye effluents pose a threat not only to human health but also to aquatic life. Various chemical processes have been used to address this issue, and advanced oxidative processes (AOPs) have shown tremendous promise in recent years. Ozonation has been used to successfully treat and decolourise various types of wastewaters including dye wastewater. This process requires few prerequisite chemicals, minimises sludge generation and consolidates the removal of both colour and organic matter into a single step. This review aims to discuss current trends in the utilisation of ozonation treatment for the remediation of dye wastewater, as well as economic aspects and cost efficiency in the hope of eliciting further interest in potential new avenues within this field.