Removal of Congo Red Dye from Aqueous Solutions by Activated Carbon Prepared from Olive Stones

In this study the prepared activated carbon made from olive stones (AC) was used as an alternative, available, low cost, and friendly material in removal of a congo red dye (CR) from wastewater. Obtained results indicate nice fitting to Langmuir and Freundlich isotherms and represented an efficient removal of CR by AC in a short time at normal conditions, also the reaction process clearly follows a pseudo-second order model.