CHELANGAT IVY KITIYO2026-08-302026-08-302026-08-30CHELANGAT IVY KITIYOhttps://bdears.busitema.ac.ug/handle/123456789/9200The widespread discharge of synthetic dyes, particularly crystal violet, into industrial effluents possesses significant ecological and health risks due to their toxic, carcinogenic, and non-biodegradable nature. This study investigates the feasibility of utilizing activated carbon synthesized from agricultural waste, specifically groundnut shells, as a low-cost, Eco-friendly adsorbent for the removal of crystal violet dye from aqueous solution. Activated Groundnut shells were prepared via chemical activation and characterized using FTIR to analyze functional groups and porosity, and by the iodine test. Batch adsorption experiments were conducted to evaluate the effects of key parameters, including contact time, initial dye concentration, adsorbent dosage, pH, and temperature, on the adsorption efficiency. The equilibrium data were fitted to the Langmuir and the Fréndlich isotherm models to understand the adsorption mechanism, while kinetic studies were performed to determine the rate-controlling step. Preliminary results indicate that the GSAC exhibits a high surface area and significant adsorption capacity for CV dye, thereby enabling rapid and efficient removal. This research highlights the potential of groundnut shells as a sustainable precursor for producing effective activated carbon, offering a dual benefit of waste valorization and wastewater treatment. The findings contribute to the development of affordable, scalable solutions for remediating dye-polluted water, addressing both environmental and economic concerns.en-USBook