Among the wide range of water pollutants are heavy metals and metals such as aluminum, which, although not classified as heavy metals interfere significantly in the aquatic environment when in excess. The main source of aluminum in the water is due to residual found after treatment with aluminum salts such as aluminum sulfate. This work aimed to study the removal of Al3+ ions from a liquid system that had been treated with aluminum sulfate and having a residual concentration of aluminum ions. Removal efficiency of this ion using a continuous system of activated charcoal adsorption in a fixed bed column was investigated. The results were satisfactory and showed a good option for the treatment of effluents contaminated with aluminum having efficiency higher than 90% removal.