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Downstream Impacts of Tank 48H In-tank and Out-of-tank Processing Alternatives.

DE2004820576

Publication Date	2003
Personal Author	Lambert, D. P.; Fink, S. D.
Page Count	22
Abstract	This document discusses a number of possible impacts that an in-tank or out-of-tank process may have on downstream processing facilities. The analysis is part of a task to develop processes to destroy tetraphenylborate using Fenton Chemistry (metal catalyst plus hydrogen peroxide). Two processes being evaluated are funded by a grant from DOE's National Energy Technology Center. The first is an in-tank process, where the tetraphenylborate is destroyed by decreasing the pH, increasing the temperature and adding a catalyst and hydrogen peroxide as required. After the TPB is destroyed, sodium hydroxide and sodium nitrite are added to the tank to return the tank to conditions that minimize corrosion. The resulting slurry is stored in a HLW tank, likely concentrated in the HLW evaporators, and later will be fed to the Salt Waste Processing Facility. The second process is an out-of-tank Fenton process. This process produces two streams, a high cesium stream that feeds to DWPF and a low cesium feed that returns to a HLW tank with the DWPF recycle. The recycle stream may be evaporated in the HLW evaporators, and will later be fed to the Saltstone Facility or the Actinide Removal Process.
Keywords	Downstream impacts Waste processing Tanks Storage facilities Sodium hydroxide Nitrites Hydrolysis Hydrogen peroxide Evaporators Corrosion Cesium Tank 48H processing alternatives Processing facilities
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Westinghouse Savannah River Co., Aiken, SC. Savannah River Site.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200412

Downstream Impacts of Tank 48H In-tank and Out-of-tank Processing Alternatives.

Downstream Impacts of Tank 48H In-tank and Out-of-tank Processing Alternatives.
DE2004820576

Publication Date	2003
Personal Author	Lambert, D. P.; Fink, S. D.
Page Count	22
Abstract	This document discusses a number of possible impacts that an in-tank or out-of-tank process may have on downstream processing facilities. The analysis is part of a task to develop processes to destroy tetraphenylborate using Fenton Chemistry (metal catalyst plus hydrogen peroxide). Two processes being evaluated are funded by a grant from DOE's National Energy Technology Center. The first is an in-tank process, where the tetraphenylborate is destroyed by decreasing the pH, increasing the temperature and adding a catalyst and hydrogen peroxide as required. After the TPB is destroyed, sodium hydroxide and sodium nitrite are added to the tank to return the tank to conditions that minimize corrosion. The resulting slurry is stored in a HLW tank, likely concentrated in the HLW evaporators, and later will be fed to the Salt Waste Processing Facility. The second process is an out-of-tank Fenton process. This process produces two streams, a high cesium stream that feeds to DWPF and a low cesium feed that returns to a HLW tank with the DWPF recycle. The recycle stream may be evaporated in the HLW evaporators, and will later be fed to the Saltstone Facility or the Actinide Removal Process.
Keywords	Downstream impacts Waste processing Tanks Storage facilities Sodium hydroxide Nitrites Hydrolysis Hydrogen peroxide Evaporators Corrosion Cesium Tank 48H processing alternatives Processing facilities
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Westinghouse Savannah River Co., Aiken, SC. Savannah River Site.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200412