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WHC-SD-W100-TI-003 Rev. 0
Westinghouse
Hanford Company LITERATURE SEARCH RESULTS
From: Chemical Process Engineering
Phone: 6-9616 L5-31
Date: May 27, 1992
Subject: WRAP 2A LITERATURE SEARCH
To: J. L. Westcott H2-58
cc: J. W. Biglin L5-31
D. A. Burbank H1-60
J. A. Hunter L5-31
J, G. Riddelle H2-58
C. A. Petersen H1-60
WOG/F ile-LB
Internal
Memo
CPE-WOG-001
A detailed literature search of waste solidification methods has been
completed and several packets of information generated by the search are
provided. The typically used materials such as portland cement and
variations of it are still the primary referenced solidification material.
However, a couple of new or newer materials are available. These include
sulfur polymer cement, a thermosetting inorganic binder, Aquaset® and
Petroset® inorganic binders used for aqueous and organic liquids
respectively, and Syncrete® a synthetic concrete. These materials will be
considered, evaluated, or tested along with the more familiar materials;
information and test samples of all three have been requested.
To minimize cost and make processing as simple as possible, thermal
processing was limited to s500°F for WRAP 2A. This eliminates
vitrification, synthetic rocks, metal matrices, calcines and ceramic waste
forms from consideration. Also, absorbent materials were not considered
viable candidates since they could be used as solidification matrices for
low-level waste, but not mixed waste since they are not expected to retain
hazardous components and would not normally pass the TCLP test. Some
searches were done for all solidification methods including vitrification so
as not to exclude any references that are potentially useful. A summary of
waste solidification agents is given in Table 1. Table 2 lists the
-sol-itiifirati-on methods ±hat--are--expected to-be--consi-dered-for application at
the WRAP 2A Module.
The use of portland cement and similar materials continues to be the most
referenced of solidification materials. Slag cement references, however,
seem to z^ inmr^ro ' nca J`--`- rna ::^t it might retain radionuclide and hazardous elements
more completelyethan cement. Pozzolan and latex cement might offer
additional advantages over portland cement for certain chemicals or
matrfieere iii^ewise ^rwirosioRee and Rlaster-of paris are gypsum cements
that set well with neutral and acidic wastes. Other cementitious materials
to consider include grout mixes, polymer modified cement, and SyncreteA. In
contrast, organic binders offer solidification agents that are expected to
form waste products exhibiting lower leach characteristics and higher waste
loadings than cement products. Thus, they will be considered, but they will
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