Equilibrium, kinetic and thermodynamic analysis of tartrazine adsorption onto raw wood sawdust as a low-cost lignocellulosic biosorbent

Key Points

• Tartrazine adsorption is significantly influenced by temperature and contact time.
• The adsorption capacity of raw wood sawdust reaches 80 mg/g under optimal conditions.
• Equilibrium and kinetic models show strong correlation, validating the effectiveness of this process.
• Cost-effective biosorption method encourages sustainable practices for dye removal in wastewater.