Nuke Waste

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operations to be carried out with the
same equipment: evaporation of the waste solution mixed with
the
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1) borosilicate: any of several salts derived from both
boric acid and silicic acid and found in certain minerals
such as tourmaline.

additives necesary for the production of borosilicate glass,
calcination and elaboration of the glass. These operations
are
carried out in a metallic pot that is heated in an induction
furnace. The vitrification of one load of wastes comprises
of the following stages. The first step is 'Feeding'. In
this step the vitrification receives a constant flow of
mixture of wastes and of additives until it is 80% full of
calcine. The feeding rate and heating power are adjusted so
that an aqueous phase of several litres is permanently
maintained at the surface of the pot. The second step is the
'Calcination and glass evaporation'. In this step when the
pot is practically ...

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This pit has been
designed so that the number of containers that may be stored
is equivalent to nine years of production. Powerful
ventilators provide air circulation to cool down glass.
The glass produced has the advantage of being stored as
solid rather than liquid. The advantages of the solids are
that they have almost complete insolubility, chemical
inertias, absence of volatile products and good radiation
resistance. The ruthenium that escapes is absorbed by a
filter. The amount of ruthenium likely to be released into
the environment is minimal.
Another method that is being used today to get rid of
radioactive waste is the 'placement and self processing
...

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