Department of Earth Sciences, University of Bristol
Environmental Geochemistry
Prof. D.M. Sherman

Lecture 9: Chemistry of Groundwater


Much of our water supply comes from groundwater. The residence time of groundwater is long enough to allow chemical equilibrium with the more soluble minerals (e.g., carbonates, sulfates) in aquifer rocks.. At the low ionic strengths of groundwater, ion exchange reactions release Na and take up Ca. Pollution of groundwater results from inorganic contaminants (esp. arsenic and nitrate) and organics such as chlorinated hydrocarbons.


You should be able to outline:

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