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Adsorption of Metals by Geomedia II, 7 : Variables, Mechanisms, and Model Applications - Mark Barnett

Adsorption of Metals by Geomedia II, 7

Variables, Mechanisms, and Model Applications

Hardcover Published: 1st February 2008
ISBN: 9780444532121
Number Of Pages: 430

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Adsorption of Metals by Geomedia II serves as a needed resource for this topic which has received much attention during the past 25 years. The book provides an in-depth review of the field, followed by numerous chapters that document the current status of adsorption research for a variety of metals by geomedia ranging from individual minerals to sediments and soils. Adsorption mechanisms are detailed and precipitation is presented as a distinct sorption process. Virtually all factors affecting the extent of metal adsorption are examined, including the effects of selected anions, competition among metals, pH, metal concentration, loading, variable metal adsorption capacity, ionic strength, hydrogen exchange and stoichiometry, and solids concentration. A variety of adsorption models are briefly presented and some are used to extend laboratory studies to field sites.
This is a compilation of 25 peer reviewed papers from among the 60+ platform and poster presentations of the symposium "Adsorption of Metals to Geomedia II" at the American Chemical Society (ACS) Meeting, March 27-29, 2006 in Atlanta, Georgia, USA. This symposium is a follow-up to the original held in 1996.
* Learn the tools and techniques from leading academics and industry experts
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Forewordp. xi
Surface Structure and Reactivity of Iron Oxide-Water Interfacesp. 1
Introductionp. 2
Surface X-ray Diffraction Method: Crystal Truncation Rod (CTR) Techniquep. 4
Examples of Structural Models of Different Iron Oxide Interfacesp. 9
Perspectives and Applications to Surface Reactivityp. 21
Summaryp. 23
Referencesp. 24
Anion Sorption Topology on Hematite: Comparison of Arsenate and Silicatep. 31
Introductionp. 32
Arsenate Crystal Chemistry in Minerals and on Surfacesp. 33
Silicate Crystal Chemistry as a Monomer and Small Polymer in Structures and on Surfacesp. 38
Structure of the Hematite Surfacep. 44
Resultsp. 46
Discussionp. 56
Prospects for Further Studiesp. 59
Conclusionsp. 61
Referencesp. 62
Molecular Structure of Lead(II) Coprecipitated with Iron(III) Oxyhydroxidep. 67
Introductionp. 68
Experimentalp. 70
Experimental Resultsp. 72
X-ray Absorption Modelingp. 75
Discussion and Conclusionsp. 84
Referencesp. 91
Tracking the Interaction of Transition Metal Ions with Environmental Interfaces using Second Harmonic Generationp. 95
Introductionp. 95
Experimentalp. 97
Surface Characterizationp. 99
Resultsp. 105
Ion Bindingp. 111
Environmental Implications and Summaryp. 118
Referencesp. 120
Prions, Metals, and Soilsp. 125
Introductionp. 126
Geochemistry of Hotspotsp. 130
The Double Nature of the Prion Proteinp. 136
Prion Sorption and Transformation on Claysp. 139
Horizontal Infectivityp. 145
Conclusionsp. 146
Referencesp. 146
Associations between Iron Oxyhydroxide Nanoparticle Growth and Metal Adsorption/Structural Incorporationp. 153
Introductionp. 154
Experimentalp. 156
Resultsp. 161
Discussionp. 175
Conclusionsp. 179
Referencesp. 181
Temperature and Aging Effects on the Surface Speciation of Cd(II) at the Goethite-Water Interfacep. 187
Introductionp. 188
Experimentalp. 192
Resultsp. 194
Discussionp. 197
Conclusionsp. 200
Referencesp. 201
Cadmium and Lead Desorption from Kaolinitep. 205
Introductionp. 205
Experimentalp. 208
Resultsp. 213
Discussionp. 225
Conclusionsp. 228
Referencesp. 229
Mechanism of Molybdenum Adsorption on Soils and Soil Minerals Evaluated Using Vibrational Spectroscopy and Surface Complexation Modelingp. 235
Introductionp. 236
Experimentalp. 239
Results and Discussionp. 244
Conclusionsp. 261
Referencesp. 262
Blind Prediction and Parameter Uncertainty - A Sorption Test Casep. 267
Introductionp. 267
Methodologyp. 271
Modelingp. 274
Results and Discussionp. 282
Summary and Conclusionsp. 287
Referencesp. 288
Biogeochemical Uranium Redox Transformations: Potential Oxidants of Uraninitep. 293
Introductionp. 294
Uranium Oxidation-Reduction Reactionsp. 294
Experimentalp. 298
Resultsp. 303
Discussionp. 307
Implications for Biogeochemical Uranium Cyclingp. 310
Referencesp. 313
Phosphate Interactions with Iron (Hydr)oxides: Mineralization Pathways and Phosphorus Retention upon Bioreductionp. 321
Introductionp. 322
Experimentalp. 325
Resultsp. 328
Discussionp. 336
Conclusion and Implicationsp. 341
Referencesp. 342
Influence of Phosphate on Adsorption and Surface Precipitation of Lead on Iron Oxide Surfacesp. 349
Introductionp. 350
Experimentalp. 352
Results and Discussionp. 361
Summaryp. 370
Referencesp. 371
Uranium(VI) Release from Contaminated Vadose Zone Sediments: Estimation of Potential Contributions from Dissolution and Desorptionp. 375
Introductionp. 376
Experimentalp. 379
Resultsp. 388
Discussionp. 409
Concluding Remarksp. 412
Referencesp. 413
Arsenic Speciation in Solid Phases of Geothermal Fieldsp. 417
Introductionp. 418
Arsenic in Geothermal Systemsp. 419
Qualitative and Quantitative Characterization of Hot Spring Depositsp. 423
XAS Analysis of Arsenic Solid-Phase Speciation in Hot Springsp. 427
Concluding Remarksp. 434
Referencesp. 435
Reactive Transport and Residence Times in Unsaturated Fractured Rocks from Field-Scale Experimentsp. 441
Introductionp. 442
Settingp. 443
Experimental Setup, Tracer Introduction and Recoveryp. 446
Reactive Transportp. 455
Tracer Transportp. 461
Fracture Networks and Flow Simulationsp. 464
Conclusionsp. 465
Referencesp. 467
Subject Indexp. 469
Table of Contents provided by Ingram. All Rights Reserved.

ISBN: 9780444532121
ISBN-10: 0444532129
Series: Developments in Earth and Environmental Sciences : Book 2
Audience: Professional
Format: Hardcover
Language: English
Number Of Pages: 430
Published: 1st February 2008
Publisher: Elsevier Science & Technology
Country of Publication: GB
Dimensions (cm): 24.0 x 16.5  x 2.64
Weight (kg): 1.07
Edition Number: 1