Preparation of Extra-Barrier Operates as Sorbent Material for Low and Intermediate-Level of Radioactive Disposal Site

The safety of the repository, during and after institutional control period, can be improved by a liner acts as an extra-barrier. The liner will be built at known distance from the site and in lower depth than the repository. This liner has the capability to decrease the quantity of migrating radionuclides from the site. This work presents a simple and in-expansive method for reduce the mobility of cerium, strontium and cesium radionuclides. The material used as a liner is a mixture of charcoal, cellulose acetate and sand soil. A series of tests will perform to evaluate the physical and chemical properties of the liner material. The physical properties of greatest interest were the dry density, the porosity and the permeability. On the other hand, the particle size, ph, and the liner thickness. Based on the results of these tests optimum liner specifications will be select.