However, the antifoam is added each shift because of the loss of effectiveness of the antifoam during chemical processing. The total irradiation time was 37 minutes and the irradiation was completed on August 21, 2000. Each of the runs consisted of a prototypic DWPF SRAT and SME cycle. The experimental setup was designed to volumetrically scale the DWPF vessels, flows, and feed-rates. Key data includes hydrogen and nitrous oxide generation rates, nitrite destruction, and foaming likelihood.
Key data includes hydrogen generation rate, glass quality, glass redox, and foaming likelihood.
The irradiated antifoam solution could potentially fragment due to the radiation field or from the thermal and chemical attack during typical SRAT and SME processing. The amount of fragmentation due to the irradiation was determined by measuring the molecular weight distribution of nonirradiated and irradiated antifoam agents. This technique was designed by polymer chemists to allow separation by molecular weight. Appendix B. A broad peak appeared at 5.7 min. There were no distinguishable differences between the irradiated and non-irradiated chromatograms.