the use of biosorbents for removal of actinides elements from phosphates el-sibaiya west and east

Three freshwater microalgae; scinaria turgid member in radophyta; cystoseira myrica of phaeophyta, and chlorodesmus casonus of chlorophyta, were tested for tolerance and biosorption of actinides elements from the phosphates of el- sibaiya west and east. the obtained results revealed that the metal biosorption process by cystoseira myrica gives a great variety for the complete biosorption of uranium in the phosphate west sample 100 % and 71.6 % in the east sample, chlorodesmus casinos give the same biosorption 63% in the east and west phosphate sample while scinaria turgid give almost the same biosorption (56.8% - 60%) in the west and east phosphate. on the other side thorium was completely absorbed by the three types of algae, the adsorption process could be efficient and economically cheap by cystoseira myrica for the removal of u and th from el-sibaiya phosphates to be used in agriculture as compost.