Environmental Soil Chemistry: An Overview:
Evolution of Soil Chemistry.
The Modern Environmental Movement.
Contaminants in Waters and Soils.
Case Study of Pollution of Soils and Waters.
Soil Decontamination.
Inorganic Soil Components:
Pauling's Rules.
Primary Soil Minerals.
Secondary Soil Minerals.
Specific Surface of Soil Minerals.
Surface Charge of Soil Minerals.
Identification of Minerals by X-Ray Diffraction Analyses.
Use of Clay Minerals to Retain Organic Contaminants.
Chemistry of Soil Organic Matter:
Effects of Soil Formation Factors on SOM Contents.
Composition of SOM. Fractionation of SOM.
SOM Structure.
Functional Groups and Charge Characteristics.
Humic Substance-Metal Interactions.
SOM-Clay Complexes.
Retention of Pesticides and Other Organic Substances by Humic Substances.
Soil Solution-Solid Phase Equilibria:
Measurement of the Soil Solution. Speciation of the Soil Solution.
Ion Activity and Activity Coefficients.
Dissolution and Solubility Processes.
Sorption Phenomena on Soils:
Introduction and Terminology.
Surface Functional Groups.
Surface Complexes.
Adsorption Isotherms.
Equilibrium-Based Adsorption Models.
Surface Precipitation.
Sorption of Metal Cations.
Sorption of Anions.
Points of Zero Charge.
Desorption.
Use of Spectroscopic and Microscopic Methods in Determining Mechanisms for Sorption-Desorption Phenomena.
Ion Exchange Processes:
Characteristics of Ion Exchange.
Cation Exchange Equilibrium Constants and Selectivity Coefficients.
Thermodynamics of Ion Exchange.
Relationship between Thermodynamics and Kinetics of Ion Exchange.
Kinetics of Soil Chemical Processes:
Rate-Limiting Steps and Time Scales of Soil Chemical Reactions.
Rate Laws. Determination of Reaction Order and Rate Constants.
Kinetic Models.
Kinetic Methodologies.
Effect of Temperature on Reaction Rates.
Kinetics of Important Soil Chemical Processes.
Redox Chemistry of Soils:
Oxidation-Reduction Reactions and Potentials.
Eh vs pH and pe vs pH Diagrams.
Measurement and Use of Redox Potentials.
Submerged Soils. Redox Reactions Involving Inorganic and Organic Pollutants.
The Chemistry of Soil Acidity:
Historical Perspective of Soil Activity.
Solution Chemistry of Aluminum.
Exchangeable and Nonexchangeable Aluminum.
Soil Acidity.
Liming Soils.
The Chemistry of Saline and Sodic Soils:
Causes of Soil Salinity.
Sources of Soluble Salts.
Important Salinity and Sodicity Parameters.
Classification and Reclamation of Saline and Sodic Soils.
Effects of Soil Salinity and Sodicity on Soil Structural Properties.
Effects of Soil Salinity on Plant Growth.
Appendix A.
Appendix B.
Bibliography.
Chapter References.
Subject Index.