Geological Fate and Impact of Isosaccharinic acid (Geo-FISA)

点击翻译按钮获取中文摘要

The nuclear fuel cycle has generated higher-level radioactive wastes that will be disposed of in a deep geological facility (GDF) that will provide multiple barriers to the migration of radionuclides to the surface over prolonged timescales (tens of thousands of years). Isosaccharinic acid (ISA) is an organic ligand that is produced from the abiotic hydrolysis of cellulosic material found in Low Heat Generating (Intermediate Level Radioactive) Wastes (LHGW). Our studies showed that microbes can degrade ISA under GDF-relevant conditions and this process can lead to the precipitation of priority radionuclides.