Introduction to groundwater geochemistry and fundamentals of hydrogeochemical modeling

Bundschuh, Jochen and Sracek, Ondra (2012) Introduction to groundwater geochemistry and fundamentals of hydrogeochemical modeling. In: Geochemical modeling of groundwater, vadose and geothermal systems. Multiphysics Modeling (5). Taylor & Francis (CRC Press), Leiden, Netherlands, pp. 3-26. ISBN 978-0-415-66810-1

Abstract

A wide diversity of physical and chemical processes control the distribution of species in waters in the vadose zone above the water table, and in the saturated zone below. The mineralogical composition of rocks or sediments, chemical reactions between solid, aqueous and gas phases, and oxidation/reduction (redox) processes are principal factors that influence the chemical composition of vadose-zone, ground- and surface waters, and the concentrations
and mobilities of individual species.

This chapter discusses the sampling of water, solids and gases, key steps in the investigation of groundwater systems, and then provides a brief summary of the thermodynamic fundamentals relevant for understanding geochemical processes in the vadose zone and in
the aquifers and aquitards below it. This is followed by a short overview of important hydrogeochemical processes such as dissolution, precipitation, exsolution and redox processes, as well as sorption and ion exchange processes. These last two sections will help the reader understand the subsequent chapters on geochemical modeling. For more information on the fundamentals of aqueous and groundwater geochemistry, the reader is referred to standard textbooks such as Stumm and Morgan (1996) and Appelo and Postma (2005).


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Item Type: Book Chapter (Commonwealth Reporting Category B)
Refereed: Yes
Item Status: Live Archive
Additional Information: Copyright 2012 Taylor & Francis Group. Permanent restricted access to published version due to publisher copyright policy.
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Agricultural, Civil and Environmental Engineering
Date Deposited: 24 Oct 2014 06:09
Last Modified: 24 Apr 2017 04:47
Uncontrolled Keywords: geochemical modeling; hydrogeochemistry
Fields of Research : 04 Earth Sciences > 0406 Physical Geography and Environmental Geoscience > 040603 Hydrogeology
04 Earth Sciences > 0402 Geochemistry > 040204 Organic Geochemistry
05 Environmental Sciences > 0502 Environmental Science and Management > 050206 Environmental Monitoring
Socio-Economic Objective: D Environment > 96 Environment > 9611 Physical and Chemical Conditions of Water > 961199 Physical and Chemical Conditions of Water not elsewhere classified
URI: http://eprints.usq.edu.au/id/eprint/26250

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