Mineral Water Interfacial Reactions

Author : Donald L. Sparks
Publisher :
ISBN 13 :
Total Pages : 460 pages
Book Rating : 4.37/5 ( download)

DOWNLOAD NOW!

Download or read book Mineral-water Interfacial Reactions written by Donald L. Sparks and published by . This book was released on 1998 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clearly explains how to more effectively decipher and predict contaminant fate in the environment by combining kinetic methods and molecular-scale spectroscopic and microscopic techniques to analyze mineral/water interfacial reactions in situ. The book begins with a broad overview, then continues with three sections written by internationally known expert. The first deals specifically with spectroscopic/microscopic techniques that can be used in combination with macroscopic approaches to glean mechanistic information on mineral/water reactions and processes. The second section emphasizes computer models that are used to elucidate surface mediated reaction mechanisms. The remainder of the volume is organized around reaction type, including sorption/desorption of inorganic species, sorption/desorption of organic species, precipitation/dissolution processes, heterogeneous electron transfer reactions, photochemically driven reactions, and microbially mediated reactions. Mineral-Water Interfacial Reactions will be a valuable resource for environmental scientists, geochemists, soil chemists, microbiologists, and marine engineers who need to be familiar with the most current and effective methods for testing and controlling the mobility, speciation, and bioavailability of contaminants in the environment.

Author : Michael F. Hochella
Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 1501509136
Total Pages : 620 pages
Book Rating : 4.31/5 ( download)

DOWNLOAD NOW!

Download or read book Mineral-Water Interface Geochemistry written by Michael F. Hochella and published by Walter de Gruyter GmbH & Co KG. This book was released on 2018-12-17 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 23 of Reviews in Mineralogy and accompanying MSA short course covers chemical reactions that take place at mineral-water interfaces. We believe that this book describes most of the important concepts and contributions that have driven mineral-water interface geochemistry to its present state. We begin in Chapter 1 with examples of the global importance of mineral-water interface reactions and a brief review of the contents of the entire book. Thereafter, we have divided the book into four sections, including atomistic approaches (Chapters 2- 3), adsorption (Chapters 4-8), precipitation and dissolution (Chapters 9-11), and oxidation-reduction reactions (Chapters 11-14).

Author : Liyun Xie
Publisher :
ISBN 13 : 9780549071136
Total Pages : 158 pages
Book Rating : 4.3X/5 ( download)

DOWNLOAD NOW!

Download or read book Reactions at the Mineral-water Interface Affecting Lead Mobility in Soil and Sediments written by Liyun Xie and published by . This book was released on 2007 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phosphate addition to lead contaminated soil can be a cost-effective method for in situ remediation. This project focused on the effects of phosphate on lead reactions at the mineral-water interface. First, the pH dependence of the equilibrium solubility and dissolution rates of chloropyromorphite (CPY, Pb5(PO4)3Cl) were determined. Synthetic CPY was more soluble than predicted for pure CPY, which may be due to the low crystallinity of the synthetic material and the presence of a trace amount of lead hydroxide. A general rate law was developed that can predict the CPY dissolution rate as a function of pH and solution saturation. Second, lead and phosphate co-sorption on goethite-coated and uncoated quartz sand was investigated and interpreted with a surface complexation model. Lead immobilization on goethite-coated sand was enhanced by phosphate, and the enhancement was predicted by the combination of single sorbate surface complexation models. Although the model predicted that adsorption was the dominant uptake mechanism, uptake may be controlled by the relative rates of precipitation and adsorption reactions. Slow sorption was observed during co-sorption of lead and phosphate on goethite-coated sand from 1 day to 1 month; slow sorption indicates slow chemical reactions, including ternary surface complexation or surface precipitation. Finally, phosphate-induced lead immobilization was evaluated using the biogenic nanocrystalline apatite (Ca5(PO4)3OH (s)) in fish bone. Dissolved lead concentrations dropped significantly upon reaction with fish bones. The mechanism of lead immobilization (precipitation vs. adsorption) was affected by the ratio of the total lead concentration to the surface area of the solid phosphate phase.

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.61/5 ( download)

DOWNLOAD NOW!

Download or read book Iron Oxide Mineral-water Interface Reactions Studied by AFM. written by and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Nikhil Rampal
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.46/5 ( download)

DOWNLOAD NOW!

Download or read book Exploring Reactivity in Aqueous Solutions and at Mineral-Water Interfaces Through the Lens of Rare Event Theory Atomic Scale Simulations written by Nikhil Rampal and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results show increasing barriers at higher concentrations, indicating hindered reaction dynamics with ions assuming locally favored molecular entities with no evidence of extended networks of ions (or DOLLOPs: Dynamically ordered liquid-like oxyanion polymers). This, in turn, controls the solution structure and alters the reaction kinetics in highly concentrated solutions, thereby frustrating nucleation. To explore the formation of these precursors in low-solubility minerals, this approach is expanded from a fundamental model of solution-phase precursor formation to the nucleation and formation of solid-phases using constant chemical potential MD simulations along with well-tempered metadynamics. Transitioning to heterogeneous nucleation, it becomes imperative to decipher the interfacial structure, dynamics, and thermodynamics of impurity incorporation on mineral-water surfaces to understand the underlying chemical reactions responsible for ion exchange, mechanism of adsorption, and mineral dissolution and growth.

Author :
Publisher :
ISBN 13 :
Total Pages : 5 pages
Book Rating : 4.95/5 ( download)

DOWNLOAD NOW!

Download or read book Geochemical Rate Processes at Mineral-water Interfaces written by and published by . This book was released on 2013 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The project emphasis at WSU is on the understanding of the principal influences on surface chemistry, morphology, and kinetics of reactions of minerals in aqueous solutions. This emphasis, in the last project period has guided our efforts to the study of morphological relaxation in response to solution perturbations as well as to develop a methodology for creating on-demand etch pits for the purposes of generating specific step orientations on calcite surfaces. In the response of any mineral-water interface to changes in environmental conditions, dissolution and mineralization rates undergo rapid changes because the reaction rates at step edges are governed directly by these conditions. Our previous investigations of mineral dissolution have revealed that the topographic relaxation time under near equilibrium conditions can be much longer than the characteristic times of experimental investigations. The investigations described below are directed towards evaluating the effects of sample history, miscut and pretreatment on the observed dissolution behavior of our target mineral-water interface systems. In addition, we have developed a simple method for generating on-demand etch pits for the purposes of studying kinetically unstable step orientations.

Author : Susan Brantley
Publisher : Springer Science & Business Media
ISBN 13 : 0387735631
Total Pages : 843 pages
Book Rating : 4.34/5 ( download)

DOWNLOAD NOW!

Download or read book Kinetics of Water-Rock Interaction written by Susan Brantley and published by Springer Science & Business Media. This book was released on 2007-12-29 with total page 843 pages. Available in PDF, EPUB and Kindle. Book excerpt: Geochemical kinetics as a topic is now of importance to a wide range of geochemists in academia, industry, and government, and all geochemists need a rudimentary knowledge of the field. This book summarizes the fundamentals of geochemical kinetics with examples drawn especially from mineral dissolution and precipitation. It also encompasses discussion of high temperature processes and global geochemical cycle modeling. Analysis of textures of rocks, sediments, and mineral surfaces are incorporated throughout and provide a sub-theme of the book.

Author : Sweta Bose
Publisher :
ISBN 13 :
Total Pages : 272 pages
Book Rating : 4.48/5 ( download)

DOWNLOAD NOW!

Download or read book Dissolution Kinetics of Sulfate Minerals written by Sweta Bose and published by . This book was released on 2008 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Werner Stumm
Publisher : Wiley-Interscience
ISBN 13 : 9780471576723
Total Pages : 0 pages
Book Rating : 4.27/5 ( download)

DOWNLOAD NOW!

Download or read book Chemistry of the Solid-Water Interface written by Werner Stumm and published by Wiley-Interscience. This book was released on 1992-08-04 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides an introduction to the chemistry of the solid-water interface, progressing from the simple to more complex and applied. Discusses the important interfaces in natural systems, especially geochemistry, in natural waters, soils and sediments. The processes occurring at mineral-water, particle-water and organism-water interfaces play critical roles in regulating the composition and ecology of oceans and fresh waters, the development of soils and plant nutrient's supply, preserving the integrity of water repositories and in such applications as water technology and corrosion science.

Author : Eric H. Oelkers
Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 1501508466
Total Pages : 588 pages
Book Rating : 4.62/5 ( download)

DOWNLOAD NOW!

Download or read book Thermodynamics and Kinetics of Water-Rock Interaction written by Eric H. Oelkers and published by Walter de Gruyter GmbH & Co KG. This book was released on 2018-12-17 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 70 of Reviews in Mineralogy and Geochemistry represents an extensive review of the material presented by the invited speakers at a short course on Thermodynamics and Kinetics of Water-Rock Interaction held prior to the 19th annual V. M. Goldschmidt Conference in Davos, Switzerland (June 19-21, 2009). Contents: Thermodynamic Databases for Water-Rock Interaction Thermodynamics of Solid Solution-Aqueous Solution Systems Mineral Replacement Reactions Thermodynamic Concepts in Modeling Sorption at the Mineral-Water Interface Surface Complexation Modeling: Mineral Fluid Equilbria at the Molecular Scale The Link Between Mineral Dissolution/Precipitation Kinetics and Solution Chemistry Organics in Water-Rock Interactions Mineral Precipitation Kinetics Towards an Integrated Model of Weathering, Climate, and Biospheric Processes Approaches to Modeling Weathered Regolith Fluid-Rock Interaction: A Reactive Transport Approach Geochemical Modeling of Reaction Paths and Geochemical Reaction Networks