Abstract
Apeanut shell was used as a low-cost agricultural waste to eliminateacid blue 25 dye from an aqueous solution. Contact time, sorbate concentration, particle size, and sorbent mass were all investigated in batch sorption tests. The sorption process was investigated in terms of equilibrium and kinetics models. The sorption process is better in agreement with the pseudo-second-order model, with a greater regression coefficient value of 1 under all experimental conditions, according to adsorption kinetic results. The models of Freundlich, Langmuir and Temkin were used to describe the isotherms of adsorption, and equilibrium data was consistent with Freundlich isotherm with a higher regression coefficient value, R2. Based on the findings, the peanut shell is much more economical, cheap, viable, and very effective for the removal of acid blue 25 dye from aqueous solution.
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