Adsorption of metals by geomedia II : variables, mechanisms, and model applications / edited by Mark O. Barnett, Douglas B. Kent.

Format:

Book

Contributor:

Barnett, Mark.

Kent, Douglas (Biographer)

Series:

Developments in earth & environmental sciences 1571-9197 ; v. 7.

Developments in earth & environmental sciences, 1571-9197 ; v. 7

Language:

English

Subjects (All):

Metals--Absorption and adsorption--Congresses.

Metals.

Geochemistry--Congresses.

Geochemistry.

Soil absorption and adsorption--Congresses.

Soil absorption and adsorption.

Metals--Absorption and adsorption.

Genre:

Conference papers and proceedings.

Physical Description:

xv, 478 pages : illustrations ; 25 cm.

Edition:

First edition.

Place of Publication:

Amsterdam ; Boston : Elsevier, 2008.

Summary:

Coming 10 years after publication of a highly informative symposium volume edited by Everett A. Jenne in 1996, this is a compilation of 16 peer reviewed papers selected from over 60 presentations given at the symposium "Adsorption of Metals to Geomedia II" at the American Chemical Society (ACS) Meeting, March 27-29, 2006 in Atlanta, Georgia, USA. These papers illustrate the rapid pace of advancement in understanding of mineral-water interfacial reactions on natural materials (geomedia) spurred by innovative research conducted over a wide range of spatial scales, from spectroscopic techniques and computational studies at the molecular level to new approaches to modeling mineral-water interfacial reactions at the field scale.

Contents:

Chapter 1 Surface Structure and Reactivity of Iron Oxide-Water Interfaces / S. K. Ghose, S. C. Petitto, K. S. Tanwar, C. S. Lo, P. J. Eng, A. M. Chaka, T. P. Trainor 1

1.2 Surface X-ray Diffraction Method: Crystal Truncation Rod (CTR) Technique 4

1.3 Examples of Structural Models of Different Iron Oxide Interfaces 9

1.4 Perspectives and Applications to Surface Reactivity 21

Chapter 2 Anion Sorption Topology on Hematite: Comparison of Arsenate and Silicate / G. A. Waychunas, Y.-S. Jun, P. J. Eng, S. K. Ghose, T. P. Trainor 31

2.2 Arsenate Crystal Chemistry in Minerals and on Surfaces 33

2.3 Silicate Crystal Chemistry as a Monomer and Small Polymer in Structures and on Surfaces 38

2.4 Structure of the Hematite Surface 44

2.5 Results 46

2.7 Prospects for Further Studies 59

Chapter 3 Molecular Structure of Lead(II) Coprecipitated with Iron(III) Oxyhydroxide / S. D. Kelly, P. Lu, T. Bolin, S. Chattopadhyay, M. G. Newville, T. Shibata, C. Zhu 67

3.2 Experimental 70

3.3 Experimental Results 72

3.4 X-ray Absorption Modeling 75

Chapter 4 Tracking the Interaction of Transition Metal Ions with Environmental Interfaces using Second Harmonic Generation / C. T. Konek, M. J. Musorrafiti, A. B. Voges, F. M. Geiger 95

4.2 Experimental 97

4.3 Surface Characterization 99

4.4 Results 105

4.5 Ion Binding 111

4.6 Environmental Implications and Summary 118

Chapter 5 Prions, Metals, and Soils / L. Charlet, Y. Chapron, G. Roman-Ross, C. Hureau, D. P. Hawkins, K. V. Ragnarsdottir 125

5.2 Geochemistry of Hotspots 130

5.3 The Double Nature of the Prion Protein 136

5.4 Prion Sorption and Transformation on Clays 139

5.5 Horizontal Infectivity 145

Chapter 6 Associations between Iron Oxyhydroxide Nanoparticle Growth and Metal Adsorption/Structural Incorporation / C. S. Kim, C. J. Lentini, G. A. Waychunas 153

6.2 Experimental 156

6.3 Results 161

Chapter 7 Temperature and Aging Effects on the Surface Speciation of Cd(II) at the Goethite-Water Interface / M. Grafe, G. Mustafa, B. Singh, R. S. Kookana 187

7.2 Experimental 192

7.3 Results 194

Chapter 8 Cadmium and Lead Desorption from Kaolinite / P. Srivastava, M. Grafe, B. Singh, M. Balasubramanian 205

8.2 Experimental 208

8.3 Results 213

Chapter 9 Mechanism of Molybdenum Adsorption on Soils and Soil Minerals Evaluated Using Vibrational Spectroscopy and Surface Complexation Modeling / S. Goldberg, C. T. Johnston, D. L. Suarez, S. M. Lesch 235

9.2 Experimental 239

9.3 Results and Discussion 244

Chapter 10 Blind Prediction and Parameter Uncertainty - A Sorption Test Case / A. Richter, V. Brendler 267

10.2 Methodology 271

10.3 Modeling 274

10.4 Results and Discussion 282

Chapter 11 Biogeochemical Uranium Redox Transformations: Potential Oxidants of Uraninite / M. Ginder-Vogel, S. Fendorf 293

11.2 Uranium Oxidation-Reduction Reactions 294

11.3 Experimental 298

11.4 Results 303

11.6 Implications for Biogeochemical Uranium Cycling 310

Chapter 12 Phosphate Interactions with Iron (Hydr)oxides: Mineralization Pathways and Phosphorus Retention upon Bioreduction / T. Borch, S. Fendorf 321

12.2 Experimental 325

12.3 Results 328

12.5 Conclusion and Implications 341

Chapter 13 Influence of Phosphate on Adsorption and Surface Precipitation of Lead on Iron Oxide Surfaces / L. Xie, D. E. Giammar 349

13.2 Experimental 352

13.3 Results and Discussion 361

Chapter 14 Uranium(VI) Release from Contaminated Vadose Zone Sediments: Estimation of Potential Contributions from Dissolution and Desorption / D. L. Bond, J. A. Davis, J. M. Zachara 375

14.2 Experimental 379

14.3 Results 388

Chapter 15 Arsenic Speciation in Solid Phases of Geothermal Fields / M. A. Alsina, I. Saratovsky, J.-F. Gaillard, P. A. Pasten 417

15.2 Arsenic in Geothermal Systems 419

15.3 Qualitative and Quantitative Characterization of Hot Spring Deposits 423

15.4 XAS Analysis of Arsenic Solid-Phase Speciation in Hot Springs 427

Chapter 16 Reactive Transport and Residence Times in Unsaturated Fractured Rocks from Field-Scale Experiments / E. Pili, S. Bureau, F. Perrier, D. Patriarche, L. Charlet, P. M. Adler, P. Richon 441

16.2 Setting 443

16.3 Experimental Setup, Tracer Introduction and Recovery 446

16.4 Reactive Transport 455

16.5 Tracer Transport 461

16.6 Fracture Networks and Flow Simulations 464.

Notes:

Selected conference papers.

Includes bibliographical references and index.

ISBN:

9780444532121

0444532129

OCLC:

191241559