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Concentration of aqueous radioactive waste with wiped-film evaporators

Description: Tests at the Savannah River Laboratory with two small wiped-film evaporators show that synthetic alkaline (Purex) waste can be converted to a free- flowing slurry that solidifies on cooling to ambient temperature. The desired concentration can be obtained in one pass rather than the several passes required with the bent-tube evaporators presently used at the Savannah River Plant. (auth)
Date: January 1, 1975
Creator: Goodlett, C.B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Performance of a wiped film evaporator with simulated high level waste slurries

Description: The horizontal, reverse taper, wiped film evaporator that was evaluated demonstrated a number of positive characteristics with respect to its applicability in the solidification of nuclear fuel recovery process wastes. Foremost among these is its ability to remove the bulk (80 to 90 percent) of the liquid associated with any of the purex-type high level, intermediate level, or mixed waste slurries. The major disadvantage of the evaporator is its current inability to discharge a product that is … more
Date: January 1, 1975
Creator: Dierks, R.D. & Bonner, W.F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Processing of radioactive waste solutions in a vacuum evaporator- crystallizer

Description: Results of the first 18 months' operation of Hanford's vacuum evaporator- crystallizer are reported. This process reduces the volume of radioactive waste solutions and simultaneously converts the waste to a less mobile salt cake. The evaporator-crystallizer is operating at better than design production rates and has reduced the volume of radioactive wastes by more than 15 million gallons. A process description, plant performance data, mechanical difficulties, and future operating plans are disc… more
Date: September 26, 1975
Creator: Petrie, J.C.; Donovan, R.I.; Van der Cook, R.E. & Christensen, W.R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Solidification and Storage of Savannah River Plant Radioactive Waste

Description: A conceptual process for solidification of SRP aqueous waste into high- integrity, low-leachable forms was developed. The process separates about 99.9 percent of the biological hazard from approximately 97 percent of the waste. The major biological hazard remaining in the residual salt is $sup 106$Ru, which has a 369-day half-life. Sludge and zeolite can be solidified into concrete or glass. Cost-risk analyses are being made to determine which of these forms is preferred for SRP waste. Also, st… more
Date: January 1, 1975
Creator: Kelley, J. A.; Hale, W. H.; Stone, J. A. & Wiley, J. R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Evaluation of Glass as a Matrix for Solidification of Savannah River Plant Waste

Description: Laboratory tests using actual sludges collected from Savannah River Plant (SRP) waste tanks were performed to evaluate glass as a waste solidification matrix. Sludge was collected from three SRP waste tanks, washed to remove soluble salts, and then ground to a fine powder. From 25 to 40 wt percent of these sludges was vitrified into a borosilicate glass by melting at 1150$sup 0$C. Substitution of 4 wt percent Li$sub 2$O for 4 wt percent Na$sub 2$O in the glass mix allowed higher loading of a hi… more
Date: October 1, 1975
Creator: Kelley, J. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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