Interim Report - Hanford Site

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PNNL-16683 <strong>Interim</strong> <strong>Report</strong>: Uranium Stabilization Through Polyphosphate Injection 300 Area Uranium Plume Treatability Demonstration Project D. M. Wellman E. M. Pierce E. L. Richards B. C. Butler K. E. Parker J. N. Glovack S. D. Burton S. R. Baum E. T. Clayton E. A. Rodriguez July 2007 Prepared for the U.S. Department of Energy under Contract DE-AC05-76RL01830 Pacific Northwest National Laboratory Richland, Washington 99352
Page 1: PNNL-16683 Interim Report: Uranium
Page 6: Acknowledgments Funding for this pr
Page 9 and 10: TRIS UV XRD tris hydroxymethyl amin
Page 11 and 12: 3.3.4 Column Transport Experiments.
Page 13 and 14: 33 Predicted Calcium Mineral Satura
Page 15 and 16: production, which included some res
Page 17 and 18: Figure 2. 300 Area Detail Map Showi
Page 19 and 20: contaminated groundwater is ~350,00
Page 21 and 22: Fuller et al. (2002a and 2003) demo
Page 23 and 24: Homogeneous hydrolysis experiments
Page 25 and 26: Table 1. Proposed Phosphate Sources
Page 27 and 28: naturally with an aqueous matrix. T
Page 29 and 30: were centrifuged, the supernatant w
Page 31 and 32: computed at each test temperature u
Page 33 and 34: 2.5.1 Starting Materials Synthetic
Page 35 and 36: (Absorbance × 10 5 ) 50 40 30 20 A
Page 37 and 38: Table 6. Experimental Batch Conditi
Page 39 and 40: Table 7. Down-Selected Experimental
Page 41 and 42: Table 7. (contd) Phosphate Source S
Page 43 and 44: Table 8. Experimental Parameters fo
Page 45 and 46: Precipitation of apatite from homog
Page 47 and 48: a Ca:P molar ratio of 1.67 (columns
Page 49 and 50: performance of columns 15 through 1
Page 51 and 52: ortho-, pyro-, and tripolyphosphate
Page 53 and 54:
uranium concentration, occurred via
Page 55 and 56:
Table 11. Uranium Speciation in Sor
Page 57 and 58:
% U Desorbed 20 15 10 5 pH 6 A 0.6
Page 59 and 60:
1.2 1.0 10 -6 M U (VI) aq Through C
Page 61 and 62:
degradation of an apatite barrier s
Page 63 and 64:
Rate of Release (mol m -2 s -1 ) lo
Page 65 and 66:
Scanning electron microscopy conduc
Page 67 and 68:
even in minor concentrations (10 -8
Page 69 and 70:
log 10 Uranium Rate (g m -2 d -1 )
Page 71 and 72:
deuterated ammonium hydroxide (ND 4
Page 73 and 74:
Table 14 presents the final polypho
Page 75 and 76:
4.0 Conclusions In this report a la
Page 77 and 78:
Brown JL. 1980. “Calcium Phosphat
Page 79 and 80:
Feenstra TP and PL de Bruyn. 1979.
Page 81 and 82:
Kalmykov SN and GR Choppin. 2000.
Page 84 and 85:
Park H-S, I-T Kim, H-Y Kim, K-S Lee
Page 86 and 87:
Valsami-Jones E, KV Ragnarsdottir,
Page 88 and 89:
Appendix A
Page 90 and 91:
Aqueous Species Solid Species Auxil
Page 92 and 93:
Aqueous Species Solid Species Auxil
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Interim Report - Hanford Site

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