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WHC-SD-W100-TI-003 Rev. 0
EXECUTIVE SUMMARY
A testing program has been conducted by the Westinghouse Hanford Company
(WHC) to confirm the baseline waste form selection for use in WRAP (Waste
Receiving and Processing) Module 2A. The WRAP Module 2A will provide
treatment required to properly dispose of contact handled mixed low-level
waste accumulating at the U.S. Department of Energy (DOE) Hanford Site in
Richland, Washington. Solidification/stabilization has been selected as the
appropriate treatment for this waste to reduce its toxicity and mobility in
the disposal site. This work is intended to test various solidification media
and confirm the baseline technologies selected for WRAP 2A.
The testing used a phased approach, consisting of first screening the
compatibility of surrogate wastes with the immobilization media, then
performing detailed physical and chemical tests on laboratory-prepared
=`} surrogate waste forms. This will be followed by performance testing of
surrogate waste form specimens prepared by full-scale mixing equipment.
Further testing will be performed during startup of the plant and introduction
-cf-new--waste--streams:--it-fis-conceived that-similar-testing as described above
will be required throughout the life of the plant as new wastes and variations
to the process are encountered. This report details the efforts and results
obtained from the initial phase of testing (waste form compatibility screening
and surrogate performance testing).
The current focus of this test work is to verify the ability of the
immobilization media identified in the conceptual design report to adequately
solidify certain waste types (UE&C 1992). As such, the first efforts of this
testing focus on using two matrices for waste solidification; cement-based
materials and thermosetting polymer resins. Project background, feedstream
overview, and the conceptual design baseline approach are discussed in this
rep^rt to further clarify the focus of the test work.
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