Cationic Dyes Removal From Textile Effluents Using Plant-Based Bioadsorbents

Abstract

Synthetic dyes, especially cationic dyes, are poisonous, persistent, and nonbiodegradable, the discharge of dye-laden wastewater from textile businesses has become a significant environmental concern. Because these colors reduce light penetration and introduce harmful substances into water bodies, they pose substantia dangers to human health and aquatic ecosystems. Despite their effectiveness, conventional treatment techniques are frequently costly and produce secondary contaminants. In this regard, plant-based bioadsorbents have become a viable and affordable color removal option. Because they contain lignocellulosic components and functional groups like hydroxyl and carboxyl, plant-derived materials including banana peels, rice husk, tea trash, and sugarcane bagasse have a substantial adsorption potential. A number of factors, including pH, contact time, adsorbent dosage, and initial dye concentration, affect the adsorption process. High removal efficiencies, frequently over 90%, have been reported in numerous experiments, and adsorption behavior generally follows pseudosecond-order kinetics and Langmuir and Freundlich isotherms. The efficiency of plant-based bioadsorbents in eliminating cationic dyes from textile effluents is demonstrated in this work, which also underlines the benefits of these bioadsorbents, such as their affordability, availability, and environmental friendliness. These materials have a lot of potential for large-scale wastewater treatment applications, despite some drawbacks like performance fluctuation and regeneration ifficulties. To increase their effectiveness and usefulness, future studies should concentrate on modification strategies and industrial use.