As the need for the hour is to promote healthy environment for the betterment of mankind to survive, this research progressed in removing the heavy metals from the wastewater through a simple technique known as adsorption. The elimination of chromium ions from wastewater by exhausting two types of activated carbon made from waste material de-oiled soya and Manilkara zapota tree wood was explored. The effect of adsorption variables namely pH, adsorbent dose, initial concentration of hexavalent chromium, and contact time were analyzed. High initial concentration showed better results in metal adsorption. The adsorption isotherm models Langmuir and Freundlich agreed well with the adsorption studies of both activated carbons, with correlation co-efficient approaching. The kinetic analysis found that pseudo-second order kinetics accurately predicted experimental data with a correlation value of 0.998. Among the two activated carbons, the activated carbon of M. zapota showed slightly better performance than in removing the hexavalent chromium with a maximum uptake of 27.778 mg/L. The findings indicate that activated carbons may be employed as a worthwhile adsorbent for removing hexavalent chromium ion to convert more harmful wastewater to less harmful wastewater.

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