ANALYSIS OF TANK 28F SALTCAKE CORE SAMPLES FTF-456 - 467

Martino, C ; Daniel McCabe, D ; Tommy Edwards, T ; Ralph Nichols, R

Savannah River Site (S.C.)

关键词: Chemical Composition;    Mixtures;    Liquid Wastes;    Radioactive Wastes;    Phase Studies;   

DOI  :  10.2172/907768
RP-ID  :  WSRC-STI-2006-00151
RP-ID  :  DE-AC09-96SR18500
RP-ID  :  907768

美国|英语

来源: UNT Digital Library

【 摘 要 】

Twelve LM-75 core samplers from Tank 28F sampling were received by SRNL for saltcake characterization. Of these, nine samplers contained mixtures of free liquid and saltcake, two contained only liquid, and one was empty. The saltcake contents generally appeared wet. A summary of the major tasks performed in this work are as follows: (1) Individual saltcake segments were extruded from the samplers and separated into saltcake and free liquid portions. (2) Free liquids were analyzed to estimate the amount of traced drill-string fluid contained in the samples. (3) The saltcake from each individual segment was homogenized, followed by analysis in duplicate. The analysis used more cost-effective and bounding radiochemical analyses rather than using the full Saltstone WAC suite. (4) A composite was created using an approximately equal percentage of each segment's saltcake contents. Supernatant liquid formed upon creation of the composite was decanted prior to use of the composite, but the composite was not drained. (5) A dissolution test was performed on the sample by contacting the composite with water at a 4:1 mass ratio of water to salt. The resulting soluble and insoluble fractions were analyzed. Analysis focused on a large subset of the Saltstone WAC constituents.