Introduction to Geochemical Modelling - University of Bristol
Introduction to Geochemical Modelling - University of Bristol
Introduction to Geochemical Modelling - University of Bristol
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Physical Chemistry <strong>of</strong> Minerals and SolutionsDM Sherman, <strong>University</strong> <strong>of</strong> Bris<strong>to</strong>l2008/2009Example: Solubility <strong>of</strong> ZnSWe have 8 unknowns and 8 equations. However, theequations are non-linear!Moreover, we are ignoring the activity coefficientswhich cannot be determined until we know theconcentrations <strong>of</strong> all the charged species.But these cannot be determined until we know theactivity coefficients..!Popular Computer Programs•PHREEQC (U.S. Geological Survey)•MINTEQ (US EPA)•Geochemist’s Workbench (<strong>University</strong> <strong>of</strong> Illinois)•EQ3 (Lawrence Livermore National Lab)Page ‹#›
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