Visual MINTEQ

Visual Minteq origin Jon Petter Gustafsson Land and Water Resources Engineering Brinellvagen 28 100 44 Stockholm Royal Institute of Technology, KTH Sweden... 

These programs are able to model the geological systems soil/rock-aqueous solution systems that is the concentration and distribution of the thermodynamically stable species can be determined based on the total concentrations of the components and the parameters just mentioned. In addition, the programs can also be used to estimate thermodynamic equilibrium constants and/or surface parameters from the concentrations of the species determined through experiments. Thermodynamic equilibrium constants can be found in tables (Pourbaix 1966) or databases (e.g., Common Thermodynamic Database Project, CHESS, MINTEQ, Visual MINTEQ, NEA Thermodynamical Data Base Project (TDB), JESS, Thermo-Calc Databases). Some programs (e.g., NETPATH, PHREEQC) also consider the flowing parameters. 

From the results it appears that most of the Cd in the filtrate is labile and there was a good agreement between the three variants of sampler (DGT OP, DGT RP, and Chemcatcher ) and the spot samples. The estimates of concentrations of labile Cu and Ni were similar for all three samplers, and these were consistent with the output from the Visual MINTEQ model. Whilst these results for Cu and Ni are consistent with... 

Gustafsson, J.P. (2005) Visual MINTEQ Version 2.40. Department of Land and Water Resources Engineering, Royal Institute of Technology, Stockholm. 

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