The biosorption is öne of the most important methods in the removal of heavy metals from the wastewaters. The potential of copper ions removal by biosorption frow low concentration level was examined using immobilised and free dead Rhizopus arrhizus. . The saturation uptake capacity of immobilised dead cells was found to be 65-93.8 mg Cu +2/g dry weight for synthetic solution compared to 23.4 mg Cu +2/g dry weight for a real effluent. The saturation uptake capacity of freely suspended dead cells was also found to be 100-172 mg Cu +2/g dry weight for a real effluent. The results have shown that immobilised dead biomass can successfully remove copper from aqueous solution.