Dye adsorption using biomass wastes and natural adsorbents: overview and future prospects

The increase in number of modern industry in the twenty-first century that uses dye and ends up disposing it into the environment and water bodies causing diseases and other environmental risks to both aquatic life and human being is alarming. In response to the increasingly stringent discharge standards and discharge fee, textile industries must upgrade the performance of their wastewater treatment facilities with primary effort on reducing chemical oxygen demand and color. This paper presents a review of dye adsorption using activated carbon prepared from different sources and environmental implications. Also, its major challenges together with future prospects are summarized and discussed. Conclusively, the production of activated carbon from waste biomass for adsorption of these dyes is of great importance in pollution control and environmental conservation.