Cassava peel (Manihot esculenta Crantz.) has the potential to be used as an adsorbent in the form of carbon used in the adsorption process to remove lead (II) ions because of its cellulose content. This study aims to determine the ability of charcoal of cassava peel in absorbing lead (II) ions. charcoal of cassava peel made by carbonization at 300°C for 120 minutes. The result showed that the …