Open AccessTechnical Status Report: Preliminary Glass Formulation Report for INEEL HAW. Revision 1
Author(s) -
DK Peeler,
Irene A. Reamer,
J.D. Vienna,
J. A. Crum
Publication year - 1998
Language(s) - English
Resource type - Reports
DOI - 10.2172/656443
Subject(s) - vitrification , borosilicate glass , waste stream , national laboratory , savannah river site , waste management , environmental science , high level waste , radioactive waste , materials science , work (physics) , chemical engineering , metallurgy , engineering , engineering physics , mechanical engineering , medicine , andrology
Preliminary glass formulation work has been initiated at Pacific Northwest National Laboratory (PNNL) and the Savannah River Technology Center (SRTC) to support immobilization efforts of Idaho National Engineering and Environmental Laboratory (INEEL) high activity waste (HAW). Based on current pretreatment flow sheet assumptions, several glasses were fabricated and tested using an average `All Blend` waste stream composition which is dominated by the presence of ZrO{sub 2} (i.e., approximately 80 wt percent). The results of this initial work show that immobilization via vitrification is a viable option for a specific INEEL HAW waste stream. Waste loadings of at least 19 wt percent can be achieved for the `All Blend` stream while maintaining targeted processing and product performance criteria. This waste loading translates into a ZrO{sub 2} content in excess of 15 wt percent in the final glass waste form. Frits developed for this work are based in the alkali borosilicate system. Although the results indicate that vitrification can be used to immobilize the `All Blend` waste stream, the glass compositions are by no means optimized