Description and capabilities of the large-scale in situ vitrification process

In situ vitrification large-scale operational acceptance test analysis

“…All three settings of the LSOAT adequately represented the characteristics predicted by the model. Therefore, it is prudent to assume that the model's prediction of achieving melt depths between 13 m and 25 m (Buelt and Carter 1986) is accurate. The model can also be used with confidence to predict run time and energy requirements and select the appropriate and most cost-effective electrode separation for a particular site geometry.…”

“…The off-gas hood and off-gas line, which are installed on the site for collection of gaseous effluents, are partially dismantled and placed on a flatbed trailer for transport. The large-scale process equipment and its process capability requirements are described in detail by Buelt and Carter (1986).…”

Disposal of Hazardous Wastes by in Situ Vitrification

“…Calculations indicate that a 40-minute release of a 55-gallon drum of antifreeze solution {50% ethylene glycol) in the large-scale system would increase the hood temperature to about 290°C . Four drums processed simultaneously at an off-gas flow of 100m3/min would raise the hood temperature to 765°C, slightly above the 750°C criteria for the off-gas system established in the Functional Design Criteria (Buelt and Carter 1986a). The air required for combustion of four drums of ethylene glycol is 50 m 3 /min, much less than the design capacity of 100 m 3 /min .…”

Support for the in situ vitrification treatability study at the Idaho National Engineering Laboratory: FY 1988 summary

“…Since that time, numerous experimental tests under a variety of conditions and with a variety of waste types have been conducted (Buelt et al . 1987, Timmerman and Oma 1984, Timmerman et al 1983, Buelt and Carter 1986. Table 1 describes the different scales of testing units that PNL used in developing and adapting ISV technology.…”