Treatment of wastewater from heavy metal pollutants still remains a serious challenge for some developing countries without centralized waste water systems. The study examines the potentials of raw and nano composite from Spondias mombin seed as an adsorbent for removal of lead (II) ions from contaminated water. Instrumental techniques such as scanning electron microscopy (SEM), Fourier Transform Infrared Spectrophotometer (FTIR), and Atomic absorption Spectrophotometer (AAS) were used to characterize the absorbents. The study analyzed the effect of various factors including absorbent dosage (0.2 – 1.0g), lead concentration (100-300 mg), contact time (30-180 min), pH (2-10) and temperature (30-50°C) respectively, on the absorption of pb2+ ions. The experimental findings revealed that the adsorbents have high absorption capacity and high percentage removal for the removal of pb2+ ions from aqueous solutions. Absorption isotherm kinetic models and thermodynamic studies were applied to access the absorption mechanism of lead (II) ion removal. The Langmuir absorption isotherm and pseudo-second-order model were found to fit the equilibrium data for nano composite while Freundlich isotherm and pseudo-first-order fitted the equilibrium data for raw fruit. According to the results obtained, a linear model was generated which indicated good predictability and the results agreed with the experimental data. The contact time and absorbent dosage were predicted to have a positive effect on the absorption process. However, after the investigation on the efficiency of raw and nano composite of Spondias mombin fruit on the removal of lead (II) ion from aqueous solutions as the impact of different variables were investigated. The study showed that the raw and modified adsorbents can be considered effective adsorbent for the removal of lead metal ions from wastewater by varying some basic parameters. The physiochemical properties of the absorbent were analyzed and the results obtained confirmed the adsorption potentials of the raw and nano composite. The removal efficiencies of both adsorbents on the Pb2+ ion were strongly dependent on their contact time, initial metal ion concentration, absorbent dosage, pH and temperature. The Langmuir isotherm model was well fitted to the experimental data, indicating that the two absorbents were effective in removing Pb2+ ions from aqueous solutions with low absorption energy. The experimental data of Pb2+ ions adsorption by raw and nano composit adsorbents studied were fitted with the pseudo-first-order and pseudo-second-order kinetic model respectively, revealing that adsorption occurs by physiosorptions and chemisorptions technique. The thermodynamic data showed that the adsorption process was exothermic, spontaneous and feasible in nature. Therefore, this work exposed the possible removal of lead (II) ions by raw and nano composite from agro waste of Spondias mombin from wastewater, which is generally a low cost agro waste.