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Title: Description of processes for the immobilization of selected transuranic wastes

Processed sludge and incinerator-ash wastes contaminated with transuranic (TRU) elements may require immobilization to prevent the release of these elements to the environment. As part of the TRU Waste Immobilization Program sponsored by the Department of Energy (DOE), the Pacific Northwest Laboratory is developing applicable waste-form and processing technology that may meet this need. This report defines and describes processes that are capable of immobilizing a selected TRU waste-stream consisting of a blend of three parts process sludge and one part incinerator ash. These selected waste streams are based on the compositions and generation rates of the waste processing and incineration facility at the Rocky Flats Plant. The specific waste forms that could be produced by the described processes include: in-can melted borosilicate-glass monolith; joule-heated melter borosilicate-glass monolith or marble; joule-heated melter aluminosilicate-glass monolith or marble; joule-heated melter basaltic-glass monolith or marble; joule-heated melter glass-ceramic monolith; cast-cement monolith; pressed-cement pellet; and cold-pressed sintered-ceramic pellet.
Authors:
Publication Date:
OSTI Identifier:
6812372
Report Number(s):
PNL-3479
TRN: 81-001686
DOE Contract Number:
AC06-76RL01830
Resource Type:
Technical Report
Research Org:
Battelle Pacific Northwest Labs., Richland, WA (USA)
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; RADIOACTIVE WASTE PROCESSING; SOLIDIFICATION; ALPHA-BEARING WASTES; BOROSILICATE GLASS; CEMENTS; CERAMIC MELTERS; CERAMICS; EVALUATION; GLASS; HIGH-LEVEL RADIOACTIVE WASTES; LIQUID WASTES; VITRIFICATION; BUILDING MATERIALS; EQUIPMENT; LOW-LEVEL RADIOACTIVE WASTES; MANAGEMENT; MATERIALS; PHASE TRANSFORMATIONS; PROCESSING; RADIOACTIVE MATERIALS; RADIOACTIVE WASTES; WASTE MANAGEMENT; WASTE PROCESSING; WASTES 052001* -- Nuclear Fuels-- Waste Processing