Hanford tank

The liquid waste is stored for at least 6 y prior to solidification to reduce the decay heat (Fig. 16.8) by a factor of 10 or more. The first U.S. military fuel reprocessing wastes were stored as neutralized waste in mild steel tanks at the Hanford reservation in eastern Washington. These steel-lined, reinforced-concrete tanks were 500,000-1,000,000 gal in capacity with provisions for removal of waste heat and radiolysis products. Corrosion of several tanks occurred with the release of waste. Fortunately, the soil around these tanks retarded nuclide transport. A better (and more expensive) design for storage tanks was implemented at the Savannah River site in South Carolina consisting of a second steel tank inside of a Hanford-style tank. The storage of acid waste in these tanks has not encountered the corrosion problems seen with the Hanford tanks. 

The method was demonstrated in the analysis of samples of processed Hanford tank waste, with good agreement between automated SI method results and results obtained using a conventional multistep manual procedure. 

The stabihzation of a range of contaminants, including Cr , in Ceramicrete was demonstrated by Wagh et al. [60] with two liquid waste streams that simulated radioactive supernatant and sludge from Hanford tanks within the DOE complex. These waste streams... 

Contaminant Concentrations in Simulated Supemate Waste from Hanford Tank, their Waste Forms, and the TCLP Results. 

A. Wagh, M. Maloney, G. Thomson, and A. Antink, Investigations in ceramic stabilization of Hanford tank wastes. Proceedings of the Waste Management Conference 2003, eds. R. Post and M. Wacks, Tucson, AZ, February 2003. 

Leaching of matrix components Simulated salt waste streams (both supernatant and sludge) from Hanford tanks... 

N. Schroeder, S. Radinski, J. Ball, K. Ashley, S. Cobb, B. Cutrell, J. Adams, C. Johnson, and G. Whitner, Technetium partitioning for the Hanford tank waste remediation system anion exchange studies for partitioning technetium from synthetic DSSF and DSS simulants and actual Hanford wastes (101-SY and 103-SY) using Reillex -HPQ resin. Annual Report, LA-UR-95-4440 (Los Alamos National Laboratory, 1995). 

Two synthetic waste solutions were used. The compositions of these solutions, along with that of an actual waste solution (from Hanford Tank 103-BY), are given in Table II. 

Catalano JG, Warner JA, Chen C-C, Yamakawa I, Newville M, Sutton SR, Ainsworth CC, Zachara JM, Traina SJ, Brown GE Jr (2001) Speciation of chromium in Hanford Tank Farm SX-108 and 41-09-39 core samples determined by X-ray absorption spectroscopy. In Groundwatcr/Vadosc Zone Integration Project Report, S-SX FIR Appendix E, Digest of S T Evaluations, p E-145-E-162 Cazaux J (2001) Electron- and X-ray-induced electron emissions from insulators. Polymer International 50 748-755... 

B. Removal of TCO4 from Hanford Tank Wastes... 

Three simulated Hanford tank wastes, SY-101, NCAW, and SST (defined in Refs. 51 and 95), were prepared and contacted with aqueous solu-... 

Figure 26 Pertechnetate distribution ratios versus the weight percent PEG-2000 in the stock solution contacted with three Hanford tank waste simulants to form an ABS. The simulated waste formulations are given in Ref. 51.

Figure 28 Dws for pertechnetate uptake from three Hanford tank waste simulants versus the molecular weight of the grafted polymer for four ABEC resins.

R. E. Gephart and R. E. Lundgren, Hanford Tank Clean up A Guide to... 

This paper describes the approach taken to reduce the number of chemical systems to a subset, the Na-Ca-Sr-OH-COs-NOs-EDTA-HEDTA-H2O system, which incorporates all of the strongest conq>lexation/ion-inteiactions for Sr in the more complex actual Hanford tank wastes. A compilation of the previously developed thermodynamic data is presented along with previously uiqiublished experimental data for certain chemical systems used to define the key systems needing detailed research. It is hoped fliat combining all of these results into one manuscript will bodi facilitate the use of the data and provide additional essential detail on the choice of the chemical systems and the validity of the overall model to the conq>lex tank wastes. 

Fountain, M.S., Kurath, D.E., Sevigny, G.J. et al. 2008. Caustie reeyele from Hanford tank waste using NaSICON ceramie membranes. Sep. Sci. Technol. 43 2321-2342. 

Mr. Crumbly has set six goals for the Department of Energy. The first deal with truly urgent risks. Some are easy, such as the Hanford tanks which have the potential but did they really have the probability of duplicating the Kyshtym accident An objective study showed that such an explosion at Hanford was highly unlikely. The temperatures were too low and there was too much water in the system to create explosive conditions though the same chemical constiments were present. This is a case where the technical community mislead itself and the public. 

Delegard, C.H. (2011) Ostwald Ripening and Its Effect on PUO2 Particle Size in Hanford Tank Waste. PNNL-20747, Pacific Northwest National Laboratory. 

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