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6.4 ENVIROSTONE TM GYPSUM CEMENT IN

RADIOACTIVE WASTE STABILIZATION

Gerald W. Veazey and Earl W. McDaniel

6.4.1 I NTRODUCTION

In the early 1980s Los Alamos National Laboratory (LANL) faced a number of
challenges with respect to management of a variety of waste streams generated from
the processing of plutonium for the Department of Energy's (DOE's) Nuclear
Defense Program. At the end of the Cold War, these challenges became more acute
as many process streams that were previously recycled were now designated as
wastes for treatment and disposal. To meet these challenges, LANL staff reviewed
a number of options available for addressing waste treatment and solidification. Most
of these processes, however, addressed gamma radiation-based fission product waste
or nuclear utilities waste. LANL, on the other hand, was involved with considerable