Engineered raw, carbonaceous, and modified biomass-based adsorbents for Rhodamine B dye removal from water and wastewater

• Published in: Bioresource technology reports Vol. 18; p. 101082
• Main Authors: Adegoke, Kayode Adesina, Adegoke, Oyeladun Rhoda, Araoye, Abimbola Oluyomi, Ogunmodede, John, Agboola, Oluwatobi Samuel, Bello, Olugbenga Solomon
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.06.2022
• Subjects: Adsorption; Lignocellulosic adsorbents; Natural adsorbents; Rhodamine B dye; Synthetic adsorbents; Wastewater; Lignocellulosic adsorbents; Synthetic adsorbents; Rhodamine B dye; Adsorption; Wastewater; Natural adsorbents
• ISSN: 2589-014X; 2589-014X
• DOI: 10.1016/j.biteb.2022.101082

Due to the availability of biomass waste at low/zero cost and the need to protect the environment from pollution caused by the accumulation of these wastes, numerous attentions have been garnered for their utilization in water/wastewater treatment. The discharge of Rhodamine B (RB) dye from industrial applications into the water/wastewater, even at 1.0 mg/L, makes it unsuitable for aquatic and human consumption. This study presents the advancement in the engineered biomass adsorbents covering raw, carbonaceous, and modified adsorbents for RB dye removal from water/wastewater. Fabrication and functionalization processes for effective biomass-based adsorbents were discussed. Various operational parameters to describe the adsorbent performances suggested a maximum adsorption capacity ranging from 1.1889 to 1666.67 mg/g and pH from 1 to 11. Mechanism and thermodynamic studies for RB dye removal were discussed. Conclusively, we highlighted some challenges and expected future studies for a better RB dye adsorption and to ensure a sustainable/safer environment. [Display omitted] •The study presents advances in engineered biomass adsorbents for RB dye removal.•Fabrication and functionalization techniques/parameters for sorbents were discussed.•Thermodynamic and plausible adsorption mechanisms for RB dye removal are discussed.•The study described the cost analysis of biomass-based sorbents for RB dye removal.•It highlighted challenges/knowledge gaps to ensure sustainable/safer environment.