Evaluation for biosorption of rare earth elements from gebel serbal granite using different types of algae

The Serbal granites are located in the southern Sinai Peninsula, Egypt .they are characterized by the high content of Rare earth elements (REEs), in this study different types of algae like Phaeophyta represented by C. osmundacea and Rhadophyta represented by Palmaria elegans and Chondrus Crispus have been chosen for their higher capacity of biosorption. Infrared analysis data indicate that biosorption depends especially on the components of the cell wall of the three algae, the metal biosorption process by Palmaria elegans give a great variety for complete biosorption for Samarium (Sm) in all samples except one while Europium (Eu) was absorbed totally by Chondrus Crispus and Palmaria elegans in one sample than the five samples. On the other hand, C. osmundacea and Palmaria elegans give complete biosorption for Europium in the six samples. From these data, we can conclude that the adsorption process could be efficient and economical by using Palmaria elegans for the removal of Sm and Eu from Serbal granites.