The biosorption capacity of different cortex fruit wastes including banana (Musa paradisiaca), lemon (Citrus limonum) and orange (Citrus sinensis) peel were evaluated. In order to perform these experiments, grinded dried cortexes were used as package in 100mm high, 10mm i.d. columns. The grinded material was powdered in a mortar and passed through a screen in order to get two different particle sizes, 2 and 1mm, for all powders. To estimate the biosorption capabilities of the tested materials, different heavy metals were passed through the columns and the elution filtrate reloaded different times to increase the retention of metals. The heavy metals used were prepared as synthetic samples at 10mg/L of Pb(NO 3 ) 2 , Cd(NO 3 ) 2 , and Cu(NO 3 ) 2 ·6H 2 O using primary standards. In preliminary experiments using banana cortex, it was found that material with 1mm of particle size showed higher retention capability (up to12%) than the material with 2mm of particle size. Considering these results, 1mm particle size material was used in further experiments with the other waste materials. It was found that for Pb and Cu removal, lemon and orange cortex showed better biosorption capability when compared with banana cortex (up to 15% less for Pb and 48% less for Cu). For Cd, banana cortex showed better biosorption capability 57% (67.2mg/g of cortex) more than orange (28.8mg/g of cortex), and 82% more than lemon (12mg/g of cortex). Reload of the columns with the filtrate after passing through the column improved the removal capability of all the materials tested from 10% to 50% depending on the cortex and metal tested.