UNDERSTANDING VARIATION IN PARTITION COEFFICIENT, Kd ...

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Sr K d (ml/g) Clay Content (%) pH CEC (meq/ 100 g) Surface Area (m 2 /g) [Ca] ppm [Sr] Background Solution 7.63 5 0.26 Groundwater 2 11.4 5 0.41 Groundwater 2 20.1 5 0.44 Groundwater 2 13 5 0.25 Groundwater 2 9.8 5 0.29 Groundwater 2 11 5 0.22 Groundwater 2 13 5 0.39 Groundwater 2 7.8 5 0.2 Groundwater 2 3.8 5 0.1 Groundwater 2 3 5 0.1 Groundwater 2 2.5 5 0.13 Groundwater 2 4 10 4 5.5 0 1x10 -8 M 0.01M NaCl Puye soil-Na 15 10 5 5.5 0 1x10 -8 M 0.01M NaCl Puye soil-Na 21 10 6 5.5 0 1x10 -8 M 0.01M NaCl Puye soil-Na 24 10 7.4 5.5 0 1x10 -8 M 0.01M NaCl Puye soil-Na 3 10 3.6 5.5 400 1x10 -8 M 0.01M CaCl Puye soil-Ca 4.5 10 5.2 5.5 400 1x10 -8 M 0.01M CaCl Puye soil-Ca 5.2 10 6.8 5.5 400 1x10 -8 M 0.01M CaCl Puye soil-Ca 5.7 10 7.9 5.5 400 1x10 -8 M 0.01M CaCl Puye soil-Ca 3.5 5.2 2 0 1x10 -10 M NaOH/HCl Hanford soil 4.6 5.6 2 0 1x10 -10 M NaOH/HCl Hanford soil 5.8 5.8 2 0 1x10 -10 M NaOH/HCl Hanford soil 6.1 5.9 2 0 1x10 -10 M NaOH/HCl Hanford soil H.13 Soil ID Reference 1 , Comments 3 3, Noncalcareous soils 3 3 3 3 3 3 4 4, Carbonate system 4 4
Sr K d (ml/g) Clay Content (%) pH CEC (meq/ 100 g) Surface Area (m 2 /g) [Ca] ppm [Sr] Background Solution 8.3 6 2 0 1x10 -10 M NaOH/HCl Hanford soil 17 7.4 2 0 1x10 -10 M NaOH/HCl Hanford soil 21 7.6 2 0 1x10 -10 M NaOH/HCl Hanford soil 27 7.8 2 0 1x10 -10 M NaOH/HCl Hanford soil 47 8.4 2 0 1x10 -10 M NaOH/HCl Hanford soil 81 9.1 2 0 1x10 -10 M NaOH/HCl Hanford soil 19.1 4 7.66 10.4 129 100 µCi/l 21.5 6 7.87 5.9 58.5 100 µCi/l 23.2 5 8.17 4.57 35.1 100 µCi/l 48.5 8.24 3 3.8x10 - 10,200 8.17 54 3.8x10 - 2,500 8.13 21 3.8x10 - 3,790 8.24 27 3.8x10 - 3,820 8.24 27 3.8x10 - H.14 8 M 8 M 8 M 8 M 8 M Hanford Groundwater Hanford Groundwater Hanford Groundwater Yucca Groundwater Yucca Groundwater Yucca Groundwater Yucca Groundwater Yucca Groundwater Soil ID Reference 1 , Comments 4 4 4 4 4 4 cgs-1 5 1.6 0.5 6.2 0.05 10x10 -6 M Groundwater Sediments 7 trench-8 5, Groundwater pH = 8.3 tbs-1 5, Hanford, Richland, Washington surface and subsurface sediments YM-22 6, Los Alamos, New Mexico YM-38 6, Yucca Mountain tuff sediments YM48 6, Approximate initial pH, final pH are presented YM-49 6, Final pH 8.1- 8.5 YM-50 6, Sediments = 106-500 µm fractions 2.6 3 6.2 0.3 10x10 -6 M Groundwater Sediments 7, Added kaolinite to sand 3.4 5 6.2 0.5 10x10 -6 M Groundwater Sediments 7, CEC estimated based on kaolinite = 10 meq/100 g 4.6 8 6.2 0.8 10x10 -6 M Groundwater Sediments 7 6.7 13 6.2 1.3 10x10 -6 M Groundwater Sediments 7 400 42.4 7.2 34 0 Water Ringhold Soil 8, soil from Richland, Washington
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United States Office of Air and Rad
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NOTICE The following two-volume rep
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This publication is the result of a
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TO COMMENT ON THIS GUIDE OR PROVIDE
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CONTENTS NOTICE ...................
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Concentrations Extractable Iron Con
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Appendix A - Acronyms and Abbreviat
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Figure E.1. Variation of K d for Cr
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Table 5.16. Uranium(VI) aqueous spe
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Table H.3. Simple and multiple regr
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1.0 Introduction The objective of t
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discussed. The geochemical modeling
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2.0 The K d Model The simplest and
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track many more parameters and some
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of interest. The retardation factor
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(e.g., soil). An increasing body of
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complexation constants for the cont
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the soil column. Additionally, the
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Element Table 5.2. Concentrations o
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5.2.3 Aqueous Speciation Cadmium fo
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5.2.4 Dissolution/Precipitation/Cop
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cadmium, indicating that cadmium an
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5.2.6.2.2 Limits of K d Values with
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organic chelates (e.g., EDTA). Init
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(tarapacaite) in chromium sludge fr
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K d). Soils containing Mn oxides ox
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Table 5.7. Estimated range of Kd va
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most common valence state of lead e
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Table 5.8. Lead aqueous species inc
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Under reducing conditions, galena (
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C Adsorption of lead increases with
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(Choppin, 1983). Plutonium hydrolyt
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Table 5.10. Plutonium aqueous speci
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5.6.5 Sorption/Desorption Plutonium
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content in the system. Additionally
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much greater concentrations. Thus,
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exchanged which they attributed to
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up tables was based in part on thei
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organic complexes likely predominat
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Thorium undergoes hydrolysis in aqu
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The distribution of thorium aqueous
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from about 10 -8.5 mol/l (0.0007 mg
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Based on the assumptions and limita
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5.10 Tritium Geochemistry And K d V
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uranium. Uranium(VI) species domina
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gives 0.1 to 10 µg/l as the range
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mineral in reducing ore zones (Fron
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Percent Distribution 100 80 60 40 2
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5.11.6 Partition Coefficient, K d ,
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No attempt was made to statisticall
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Table 5.18. Selected chemical and t
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Another objective of this report is
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6.0 REFERENCES Adriano, D. C. 1992.
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Bensen, D. W. 1960. Review of Soil
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Metals by Geomedia. Variables, Mech
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EPA (U.S. Environmental Protection
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Griffin, R. A., A. K. Au, and R. R.
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+ Keeney-Kennicutt, W. L., and J. W
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Mattigod, S. V., A. L. Page, and I.
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Oscarson, D. W., and H. B. Hume. 19
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Relyea, J. F. and D. A. Brown. 1978
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Schultz, R. K., R. Overstreet, and
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Szalay, A. 1964. “Cation Exchange
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Yariv, S., and H. Cross. 1979. Geoc
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APPENDIX A Acronyms, Abbreviations,
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PC Personal computers operating und
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A.3.0 List of Symbols and Notation
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APPENDIX B Definitions
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Clay Content - particle size fracti
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Polynuclear Species - an aqueous sp
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C.1.0 Background Appendix C Partiti
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Cadmium K d Table C.2. Correlation
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C.3.0 Data Set for Soils Table C.4
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Cd K d (ml/g) Clay Cont. (wt%) pH C
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D.1.0 Background Appendix D Partiti
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A second data set (see Section D.4)
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Table D.3. Correlation coefficients
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By transposing the CEC and cesium K
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Table D.6. Cesium K d values measur
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eported in Table D.8 are described
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a 1 b 1 Range of Solution Cs Concen
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Figure D.4. Generalized cesium Freu
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Table D.10. Estimated range of K d
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D.3.0 K d Data Set for Soils and Pu
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Cesium Kd (ml/g) Clay (wt.% ) Mica
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Cesium K d (ml/g) Clay (wt%) Mica (
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Bruggenwert, M. G. M., and A. Kamph
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Shiao, S. Y., P. Rafferty, R. E. Me
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E.1.0 Background Appendix E Partiti
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Page 204 and 205: E.2.0 Approach The approach used to
Page 206 and 207: Table E.3. Estimated range of K d v
Page 208 and 209: Table E.4. Data from Rai et al. (19
Page 210 and 211: E.4.0 References Davis, J. A. and J
Page 212 and 213: APPENDIX F Partition Coefficients F
Page 214 and 215: (CEC) of the soils. Such an anomaly
Page 216 and 217: Table F.1. Summary of K d values fo
Page 218 and 219: Figure F.2. Variation of K d as a f
Page 220 and 221: F.4.0 References Abd-Elfattah, A.,
Page 222 and 223: APPENDIX G Partition Coefficients F
Page 224 and 225: A number of investigators have exam
Page 226 and 227: pH value, which is typical of the m
Page 228 and 229: These significant reductions in ads
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Page 234 and 235: Table G.2. Regression models for pl
Page 236 and 237: G.4.0 References Barney, G. S. 1984
Page 238 and 239: Nelson, D. M., R. P. Larson, and W.
Page 240 and 241: APPENDIX H Partition Coefficients F
Page 242 and 243: 1.6 ml/g for a measurement made on
Page 244 and 245: Figure H.1. Relation between stront
Page 246 and 247: Figure H.2. Relation between stront
Page 248 and 249: H.2.4 Approach Figure H.4. Relation
Page 250 and 251: A second look-up table (Table H.5)
Page 254 and 255: Sr K d (ml/g) Clay Content (%) pH C
Page 256 and 257: Sr K d (ml/g) Clay Conten t (%) pH
Page 264 and 265: Konishi, M., K. Yamamoto, T. Yanagi
Page 266 and 267: APPENDIX I Partition Coefficients F
Page 268 and 269: descriptive statistics of the thori
Page 270 and 271: Figure I.1. Linear regression betwe
Page 272 and 273: The look-up table (Table I.5) for t
Page 274 and 275: Thorium K d (ml/g) pH Clay (wt.%) C
Page 276 and 277: Rai, D., A. R. Felmy, D. A. Moore,
Page 278 and 279: J.1.0 Background Appendix J Partiti
Page 280 and 281: J.2.2 Uranium K d Studies on Soils
Page 282 and 283: Washington. The studies included an
Page 284 and 285: and then decreases with increasing
Page 286 and 287: Kd (ml/g) 100,000 10,000 1,000 100
Page 288 and 289: papers. Warnecke et al. (1984) indi
Page 290 and 291: Anderson et al. (1982) summarize an
Page 292 and 293: McKinley and Scholtis (1993) compar
Page 294 and 295: In a similar comparison of sorption
Page 296 and 297: J.3.1 K d Values as a Function ff p
Page 298 and 299: discussed, and one would have to ma
Page 300 and 301: al., 1992; and others). These refer
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· Manskaya et al. (1956) studied a
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concentrations of humic acid, there
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pH U Kd (ml/g) Clay Cont. (wt.%) CE
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J.6.0 References Ames, L. L., J. E.
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Erikson, R. L., C. J. Hostetler, R.
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R. C. Ewing. Materials Research Soc
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Sheppard, M. I., and D. H. Thibault
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Yamamoto, T., E. Yunoki, M. Yamakaw
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UNDERSTANDING VARIATION IN PARTITION COEFFICIENT, Kd ...

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