IMOBILIZATION OF THE RADIOACTIVE WASTES
IN VITREOUS SYSTEMS ON THE BASED OF LEAD
Immobilization of radioactive wastes by the vitrification method is a
well-established process that was selected because glass is highly stable, very
durable and has the ability to incorporate a wide variety of chemical
contaminants. In this work, we propose a study of the structural and behaviour
properties of lead glasses with xGd2O3∙(100-x)[4PbO2∙Pb] composition where
x=0-50%mol Gd2O3 in view of the possible applications as alternative of
immobilization of the radioactive wastes.
One of the most important requirements for the technology used in the
immobilization of nuclear wastes is to include as much as possible waste per
unit mass of the host vitreous matrix. We were synthesized the gadolinium-lead
glasses up to 50% mole Gd2O3. EPR data suggest that the gadolinium ions at
high contents have a behaviour of network former and not network modifier.
Keywords: bottles, Gadolinium-based lead, IR spectroscopy and RES,
waste
Cuvinte cheie: sticle pe bază de gadoliniu-plumb, spectroscopie IR şi
RES, deşeuri
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