CHARACTERIZATION OF SAMPLES FROM TANK 16H ANNULUS

Hay, M

关键词: AR FACILITIES;    STORAGE FACILITIES;    DECOMMISSIONING;    ANNULAR SPACE;    SAMPLING;    CHEMICAL COMPOSITION;    RADIOACTIVE WASTES;    SOLUBILITY;   

DOI  :  10.2172/932780
RP-ID  :  WSRC-STI-2008-00203
PID  :  OSTI ID: 932780
Others  :  TRN: US0803938

学科分类：核能源与工程

美国|英语

来源: SciTech Connect

【 摘 要 】

In support of the closure of Tank 16H, the remaining waste material in the tank annulus must be removed. Samples of the waste material from Tank 16H annulus were obtained and sent to Savannah River National Laboratory (SRNL) to determine the chemical and radiochemical composition prior to further waste removal. The three samples obtained from the Tank 16H annulus show some similarity as to the types of mineral phases present in the materials but differ in the relative amounts of each phase present. The samples from outside the dehumidification duct at two locations in the annulus show very different compositions and estimated solubility in water. This indicates the waste material in Tank 16H annulus may have a wide range of compositions at different locations. The table below provides a simplified description of the composition of each sample. The limited characterization techniques conducted and the complex mixture of materials in each sample makes assigning a definitive composition for each sample difficult. Given the variability in composition with just the three small samples characterized, a more detailed description of any single sample may be of limited value.