A new study considers the suitability of Estonia’s geology for a deep horizontal borehole repository for nuclear waste. The study was commissioned by Estonian advanced reactor deployment company Fermi Energia. This preliminary study by nuclear waste storage solutions provider Deep Isolation found no fundamental geologic limitations to disposing of nuclear waste in deep horizontal boreholes. In addition, a wide range of locations could be demonstrated to comply with International Atomic Energy Agency (IAEA) safety regulations for geologic disposal. The study is a qualitative geological assessment of Estonia’s crystalline basement rock that evaluates geological conditions and potential risk factors for Estonia’s 15 counties, screening their potential for hosting a deep borehole repository. Such a repository would isolate radioactive elements from the Earth’s surface for 1.3 million years. At that point, any elements that might reach the surface would be three orders of magnitude below levels deemed safe and allowable by international safety standards.
Ground Engineering 10th Feb 2021 read more »