Book contents
- Frontmatter
- Dedication
- Contents
- Preface
- Preface to Second Edition
- Preface to First Edition
- A Note About Software
- 1 Introduction
- 2 Modeling Overview
- PART I EQUILIBRIUM IN NATURAL WATERS
- PART II REACTION PROCESSES
- 14 Mass Transfer
- 15 Polythermal, Fixed, and Sliding Paths
- 16 Geochemical Buffers
- 17 Kinetics of Dissolution and Precipitation
- 18 Redox Kinetics
- 19 Microbial Kinetics
- 20 Association and Dissociation Kinetics
- 21 Kinetics of Gas Transfer
- 22 Stable Isotopes
- 23 Transport in Flowing Groundwater
- 24 Reactive Transport
- 25 Stagnant Zones
- PART III APPLIED REACTION MODELING
- Appendix A Sources of Modeling Software
- Appendix B Evaluating the HMW Activity Model
- Appendix C Minerals in the LLNL Database
- Appendix D Nonlinear Rate Laws
- References
- Index
24 - Reactive Transport
from PART II - REACTION PROCESSES
Published online by Cambridge University Press: 09 December 2021
Book contents
- Frontmatter
- Dedication
- Contents
- Preface
- Preface to Second Edition
- Preface to First Edition
- A Note About Software
- 1 Introduction
- 2 Modeling Overview
- PART I EQUILIBRIUM IN NATURAL WATERS
- PART II REACTION PROCESSES
- 14 Mass Transfer
- 15 Polythermal, Fixed, and Sliding Paths
- 16 Geochemical Buffers
- 17 Kinetics of Dissolution and Precipitation
- 18 Redox Kinetics
- 19 Microbial Kinetics
- 20 Association and Dissociation Kinetics
- 21 Kinetics of Gas Transfer
- 22 Stable Isotopes
- 23 Transport in Flowing Groundwater
- 24 Reactive Transport
- 25 Stagnant Zones
- PART III APPLIED REACTION MODELING
- Appendix A Sources of Modeling Software
- Appendix B Evaluating the HMW Activity Model
- Appendix C Minerals in the LLNL Database
- Appendix D Nonlinear Rate Laws
- References
- Index
Summary
A reactive transport model is a simulation of the movement of chemical species in a flow regime, in which the species are allowed to react chemically. In this chapter, we derive a finite difference model of reactive transport in flowing groundwater, introduce the concept of a Damköhler number in the context of our model, show how the model can be evaluated numerically, and provide example calculations showing how such a model behaves.
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- Geochemical and Biogeochemical Reaction Modeling , pp. 289 - 302Publisher: Cambridge University PressPrint publication year: 2022