shows maximum adsorption at high pH (7-9), indicating minimal effect of hydroxide ions at these values. observed that at neutral pH, EB achieves maximum adsorption, revealing that the amount of dye adsorbed at pH 7 and 9 is nearly the same. The impact of contact time on the adsorption of methylene blue dye from aqueous solutions using sugarcane bagasse is detailed in Table and Figure above. The results indicate that at 30 minutes, optimal adsorption of methylene blue dye was achieved using sugarcane bagasse at a concentration of 10 ppm, 0.2g of adsorbent, and a pH value of 6. Beyond this equilibrium point, further increases in contact time resulted in minimal changes in the percentage of dye removal. This initial rapid phase is attributed to the abundance of vacant adsorption sites at the beginning, which creates a high concentration gradient between the dye in solution and the dye adsorbed on the surface.