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Groundwater Geochemistry
Fundamentals and Applications to Contamination



ISBN 9780873713085
Published July 9, 1997 by CRC Press
232 Pages

 
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Book Description

Groundwater Geochemistry: Fundamentals and Applications to Contamination examines the integral role geochemistry play s in groundwater monitoring and remediation programs, and presents it at a level understandable to a wide audience. Readers of all backgrounds can gain a better understanding of geochemical processes and how they apply to groundwater systems.

The text begins with an explanation of fundamental geochemical processes, followed by a description of the methods and tools used to understand and simulate them. The book then explains how geochemistry applies to contaminant mobility, discusses remediation system design, sampling program development, and the modeling of geochemical interactions. This clearly written guide concludes with specific applications of geochemistry to contaminated sites.

This is an ideal choice for readers who do not have an extensive technical background in aqueous chemistry, geochemistry, or geochemical modeling. The only prerequisite is a desire to better understand natural processes through groundwater geochemistry.

Table of Contents

GROUNDWATER GEOCHEMISTRY FUNDAMENTALS
The Aquifer Geochemical System
Groundwater Solution
Chemical Reactions and the Equilibrium Constant
Soil/Rock Composition
Water/Rock Processes Controlling Solution Composition
Solution, Redox, and Gas Exchange Processes
Aqueous Complexation
Oxidation/Reduction Processes
Solution/Gas Interactions
Water/Rock Interactions
Adsorption/Desorption
Mineral Precipitation/Dissolution
Reaction Rates
Development of Conceptual Geochemical Models
Modeling Data Requirements
Elements of a Conceptual Model
Geochemical Modeling Methods
Computer Codes for Geochemical Modeling
Mass Balance Modeling Codes
Equilibrium Speciation/Solubility Modeling Codes
Equilibrium Mass Transfer Modeling Codes
Mass Transport
Geochemical Modeling Limitations
GENERAL GEOCHEMICAL APPLICATIONS
Geochemical Models
Mobility of Iron in the Natural Environment
Modeling Calcite Mineral Precipitation in Response to Groundwater Heating
Modeling the Aeration of Groundwater
Geochemistry of Contaminant Mobility
Contaminant-Induced Disequilibrium
Solubility Limits on Contaminant Concentration in Groundwater
Mineral Equilibria of Contaminants
Adsorption/Desorption Impact on Contaminant Migration
Contaminant Migration Summary
Geochemistry of Restoration
Natural Restoration
Geochemical Principles of Aquifer Restoration
Applied Restoration Techniques
Geochemical Enhancements to Pump-and-Treat Restoration
Simulating the Geochemistry of Restoration
Geochemistry and the Design of Sampling Programs
Temperature
Hydrogen Ion Activity (pH)
Redox Potential (Eh)
Dissolved Gases
Alkalinity
Major Cation and Anions
Minor and Trace Dissolved Constituents
Reactive Solid Phases
APPLICATIONS OF GEOCHEMISTRY TO SPECIFIC TYPES OF CONTAMINANTS AND CONTAMINATED ENVIRONMENTS
Practical Applications: Landfills
Geochemical Environment
Sampling Considerations
Geochemical Reaction Modeling
Contaminant Mobility
Remediation
Practical Applications: Metals Contamination
Geochemical Environment
Sampling Considerations
Geochemical Reaction Modeling
Contaminant Mobility
Remediation
Geochemistry of Acid Mine Waste
Acid-Generating and -Neutralizing Processes
Acidic Environments
Sampling Considerations
Geochemical Modeling
Contaminant Transport
Remediation
Geochemistry of Organic Compound Contamination
Representative Types of Organic Contamination
Sampling Considerations
Geochemical Modeling
Contaminant Transport
Remediation
Appendix A: Solid Phases that Limit Groundwater Concentrations
Index

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