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Adsorption of Pb2+ from Simulated Solution using Raw Kola nut Pod Adsorbent

Adeleke A.E, Onifade A.P, Jabar J.M, Sangoremi A.A


This study investigated the removal of the Pb (II) ion from an aqueous solution using kola nut pod as a natural adsorbent. The batch adsorption experiment was carried out, and the parametric effect on removal of heavy metals was also investigated. kinetic data such as pseudo-first, second, and intraparticle diffusion models during the adsorption process were also evaluated. The optimum dose of adsorbent for Pb (II) removal was 2.5 g with a removal efficiency of 99.11% at an equilibrium contact time of 30 minutes. It was discovered that the adsorption kinetic of Pb (II) on kola nut pods followed the pseudo-second order reaction.

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