Reactions of Aqueous Aluminum Species at Mineral Surfaces

Reactions of Aqueous Aluminum Species at Mineral Surfaces PDF Author: David Wayne Brown
Publisher:
ISBN:
Category : Aluminum salts
Languages : en
Pages : 56

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Reactions of Aqueous Aluminum Species at Mineral Surfaces

Reactions of Aqueous Aluminum Species at Mineral Surfaces PDF Author: David Wayne Brown
Publisher:
ISBN:
Category : Surface chemistry
Languages : en
Pages : 48

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Reactions of Aqueous Aluminum Species at Mineral Surfaces - Chemistry of Aluminum in Natural Water

Reactions of Aqueous Aluminum Species at Mineral Surfaces - Chemistry of Aluminum in Natural Water PDF Author: Geological Survey (U.S.)
Publisher:
ISBN:
Category :
Languages : en
Pages : 75

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Geological Survey Water-supply Paper

Geological Survey Water-supply Paper PDF Author:
Publisher:
ISBN:
Category : Floods
Languages : en
Pages : 498

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The Environmental Chemistry of Aluminum

The Environmental Chemistry of Aluminum PDF Author: Garrison Sposito
Publisher: CRC Press
ISBN: 0429612486
Category : Science
Languages : en
Pages : 477

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The Environmental Chemistry of Aluminum provides a comprehensive, fundamental account of the aqueous chemistry of aluminum within an environmental context. An excellent reference for environmental chemists and scientific administrators of environmental programs, this book contains material reflecting the many recent changes in this rapidly developing discipline. The first three chapters discuss the most fundamental aspects of aluminum chemistry: its quantitation in soils and natural waters, including speciation measurements, and its stable chemical forms, both as a dissolved solute and in a solid phase. These chapters emphasize both critical assessments of and definitive recommendations for laboratory methodologies and measured thermodynamic properties relating to aluminum chemistry. The next four chapters in The Environmental Chemistry of Aluminum build on this foundation to provide details of the polymeric chemistry of aluminum: its polynuclear and colloidal hydrolytic species in aqueous solution, its complexes with natural organic ligands, including humic substances, and its role as an adsorptive and adsorbent in surface reactions. These chapters are grounded in experimental results rather than conceptual modeling. The final three chapters describe the chemistry of aluminum in soils, waters, and watersheds. These chapters illustrate the problems of spatial and temporal variability, metastability, and scale that continue to make aluminum geochemistry one of the great challenges in modern environmental science.

Selected Water Resources Abstracts

Selected Water Resources Abstracts PDF Author:
Publisher:
ISBN:
Category : Hydrology
Languages : en
Pages : 878

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Silica

Silica PDF Author: Peter J. Heaney
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 1501509691
Category : Science
Languages : en
Pages : 624

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Volume 29 of Reviews in Mineralogy provides an updated silica review which focuses on the most recent developments. This book describes the crystal structures and phase transitions of silica and its stuffed derivatives; bridges the relationship between the microstructural character of real silica minerals and the behavior of silica in the geological environment; covers Quantum mechanical considerations of the Si-O bond; shows how calculations based upon first-principles theory can explain and predict silica transitions at high temperatures and pressures; covers spectroscopic analyses of silica and how they reveal vibrational behaviors in response to variations in temperature, pressure, and composition and finally details the uses of silica for industrial purposes.

Handbook of Soil Acidity

Handbook of Soil Acidity PDF Author: Zdenko Rengel
Publisher: CRC Press
ISBN: 1135546150
Category : Science
Languages : en
Pages : 507

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Book Description
This handbook offers effective strategies to modify and adjust crop production processes to decrease the toxicity of soil contaminants, balance soil pH, improve root growth and nutrient uptake, and increase agricultural yield. The Handbook of Soil Acidity provides methods to, measure soil acidity, determine the major causes of soil acidification, c

Surface Complexation Modeling

Surface Complexation Modeling PDF Author: Athanasios K. Karamalidis
Publisher: John Wiley & Sons
ISBN: 1118063104
Category : Science
Languages : en
Pages : 268

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Book Description
This book provides a description of the generalized two layer surface complexation model, data treatment procedures, and thermodynamic constants for sorption of metal cations and anions on gibbsite, the most common form of aluminum oxide found in nature and one of the most abundant minerals in soils, sediments, and natural waters. The book provides a synopsis of aluminum oxide forms and a clearly defined nomenclature. Compilations of available data for sorption of metal cations and anions on gibbsite are presented, and the results of surface complexation model fitting of these data are given. The consistency of the thermodynamic surface complexation constants extracted from the data is examined through development of linear free energy relationships which are also used to predict thermodynamic constants for ions for which insufficient data are available to extract constants. The book concludes with a comparison of constants extracted from data for sorption on gibbsite with those determined previously for hydrous ferric oxide (HFO), hydrous manganese oxide (HMO), and goethite. The overall objective of this book is the development and presentation of an internally consistent thermodynamic database for sorption of inorganic cations and anions on gibbsite, an abundant and reactive mineral in soils, sediments, and aquatic systems. Its surface has a high affinity for sorption of metal cations and anions, including radionuclides. The gibbsite database will enable simulation and prediction of the influence of sorption on the fate of these chemical species in natural systems and treatment processes in which aluminum oxides are abundant. It thus will help to advance the practical application of surface complexation modeling.

Chemical Weathering Rates of Silicate Minerals

Chemical Weathering Rates of Silicate Minerals PDF Author: Arthur F. White
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 1501509659
Category : Science
Languages : en
Pages : 600

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Volume 31 of Reviews in Mineralogy reviews current thinking on the fundamental processes that control chemical weathering of silicates, including the physical chemistry of reactions at mineral surfaces, the role of experimental design in isolating and quantifying these reactions, and the complex roles that water chemistry, hydrology, biology, and climate play in weathering of natural systems. The chapters in this volume are arranged to parallel this order of development from theoretical considerations to experimental studies to characterization of natural systems. Secondly, the book is meant to serve as a reference from which researchers can readily retrieve quantitative weathering rate data for specific minerals under detailed experimental controls or for natural weathering conditions. Toward this objective, the authors were encouraged to tabulate available weathering rate data for their specific topics. Finally this volume serves as a forum in which suggestions and speculations concerning the direction of future weathering research are discussed.