The removal of copper ions from aqueous solution by ricebran as biosorbent was examined. Batch equilibration experiments conducted with alkali-treated ricebran showed 90.5% sorption within 1 h shaking at pH 7.2 with 100 ml of 50 ppm solution of Cu(II) ions and 1 g of ricebran. The Freudlich adsorption isotherm equation showed the measure of sorption capacity (K) to be 0.257.