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Title: UTILIZING STATISTICS TO DETERMINE HOW MUCH SAMPLING AND ANALYSISIS WARRANTED TO SUPPORT SAVANNAH RIVER SITEHIGH LEVEL WASTE SLUDGE BATCH PREPARATION

Conference ·
OSTI ID:907770

Accelerated cleanup initiatives at the SRS include expediting radioactive sludge processing. Sludge is the highest risk component of waste since it contains the highest concentrations of long-lived radionuclides. The sludge is staged into ''batches'' that are then the feed material to the Defense Waste Processing Facility (DWPF) which vitrifies the waste into a safe form for permanent disposal. The preparation of each batch includes sampling and analysis of the slurried material. The results of the characterization are used as the bases for batch blending and processing decisions. Uncertainty is inherent in the information used for planning. There is uncertainty in the quantity of sludge contained in a tank, the waste composition, and the waste physical properties. The goal of this analysis is to develop the basis for the number of physical samples that should be taken from the slurried waste tank and the number of replicates of laboratory measurements that should be performed in order to achieve a specified uncertainty level. Recommendations for sampling and analysis strategies are made based on the results of the analysis.

Research Organization:
Savannah River Site (SRS), Aiken, SC (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
DE-AC09-96SR18500
OSTI ID:
907770
Report Number(s):
LWO-PIT-2007-00057; TRN: US0703298
Resource Relation:
Conference: Materials Science and Technology
Country of Publication:
United States
Language:
English