Tank waste remediation system operation and utilization plan,vol. I {ampersand} II

Low-Activity Waste and High-Level Waste Feed Processing Data Quality Objectives

“…(Gate 1) -This DQO will be applied to source tank waste that is part of Phase I privatization operations only. If the source tank is listed as a Phase I tank in the Tank Waste Remediation System Operations and Utilization Plan (TWRSOUP) operational and utilization plan (Kirkbride et al 1997) or DOE M&I planning guidance, the waste in that tank is a. candidate for this DQO. However, if fiture transfers or other tank operations are planned prior to feed staging, this DQO is applied only if it is determined that immediate characterization data are needed based on timing or for other technical reasons..…”

“…q Determine if the tank is a Phase I tank by consulting the TWRSOUP operational and utilization plan (Kirkbride et al 1997) and DOE M&I planning guidance.…”

“…A description of the candidate waste feed selection process is updated and published each year in the TWRSOUP (Kirkbride et al 1997). Additionally, guidance for Phase I may be provided by DOE.…”

241-AY Double Shell Tanks (DST) Integrity Assessment Report

“…Waste descriptions, past and future, are described below by tank in Table 1. Based on forecasts by Kirkbride et a1 (Kirkbride 1999), the AY tanks are proposed to be source tanks for the vitrification process beginning around 2007 to 2020. According to Strode and Boyles (Strode 1998).…”

Experimental Investigation and Mathematical Modeling of Cold Cap Behavior in High‐Level‐Waste Glass Melter

“…For example, it reduces volatilization of radioactive components, such as Cs, Tc, or I. The temperature span across the cold cap, within which batch reactions are completed and melter feed is almost fully converted to molten glass, is up to 1000 K. Whereas batches for commercial glasses are fully controlled with respect to their chemical and physical makeup, feeds for nuclear waste glasses contain 20 to 50% waste, the composition of which is given by the past treatments of spent fuel, 1 and the rest consists of additives that supply glass-forming and -modifying components needed for the glass to achieve desirable properties; hence, only the additives are available for cold cap optimization. However, the chemical and physical form of the additives, which are supplied as a mixture of chemicals and minerals or as a premelted frit, is flexible enough to have a substantial impact on cold cap behavior and the rate of melting.…”