Nuclide transport behavior in the fracture around a conceptual german HLW repository

According to a draft national radioactive waste disposal program proposed by environment ministry and adopted by the German cabinet in 2015, for the final disposal of radioactive waste, the former iron ore mine, Konrad is proposed exclusively for LILW waste, and for HLW another site which will be determined in 2022 around when the last NPP is shut down. In 2016, another report that provides a recommended method for the disposal of waste in a geologic repository was prepared. According to the report, the safest site is to be sought in a three-phase process and defined by federal law. The site selection should be accompanied by extensive nationwide public participation. The research project, ENTRIA is disposal options currently being considered in Germany in cooperation with 11 institutes at German universities and research facilities as well as one Suisse partner for radioactive residues which requires interdisciplinary analyses and development of evaluation principles. Along the fracture zone in the crystalline rock medium with a higher hydraulic conductivity than the near-field area and through which nuclides that are released from artificial barriers, a fast nuclide transport is anticipated with advection dominated as well as the dispersion and rock matrix diffusion. Two separate results, one of which is from probabilistic assessment for sensitivity of the travel length variation, and the rest of which is from a deterministic comparative evaluation to see the effect of the matrix diffusion are shown in turn.