| The LLNL thermo database. This is the default dataset of thermodynamic data for the GWB applications, including log Ks for hundreds of reactions involving aqueous species, minerals, and gases; also coefficients for evaluating activity coefficients by the B-dot equation. | thermo.tdat [or GWB12 format] |
| An expanded variant of the LLNL database containing many organic species and radionuclides. Some people feel this database is less internally consistent than thermo.tdat, especially with respect to aluminum and sulfur species. | thermo.com.V8.R6+.tdat [or GWB12 format] |
| The thermodynamic dataset from Release 2.8 of the USGS's PhreeqC program, formatted for the GWB applications. (You can use TEdit to convert more recent PhreeqC databases to GWB format.) | thermo_phreeqc.tdat [or GWB12 format] |
| Visual Minteq's thermodynamic database, formatted for the GWB courtesy of Jon Petter Gustafsson. Updated versions may be available from his website. | thermo_minteq.tdat [or GWB12 format] |
| Thermo data from the USGS's Wateq4F software. | thermo_wateq4f.tdat [or GWB12 format] |
| Log Ks and virial coefficients for evaluating the Harvie-Møller-Weare activity model (a formalism of the “Pitzer equations”) at 25°C | thermo_hmw.tdat [or GWB12 format] |
| The Harvie-Møller-Weare activity model, as implemented in the USGS program PHRQPITZ. The dataset includes borate species and limited provision for temperature dependence. | thermo_phrqpitz.tdat [or GWB12 format] |
| The Yucca Mountain Project dataset, invoking the Harvie-Møller-Weare activity formalism of the “Pitzer equations” | thermo_ymp.R2.tdat [or GWB12 format] |
| The THEREDA project's database incorporating high-temperature “Pitzer” activity coefficients | thereda_2020_gwb_jan19.tdat [Release Notes] |
| The Thermochimie project's database invoking the SIT activity model | thermo_sit.tdat |
| The Nuclear Energy Agency’s thermochemical database using the SIT method | thermo_nea.tdat |
| The FREZCHEM “Pitzer” database valid to very low (sub-zero C) temperature, as set out by Toner and Sletten | thermo_frezchem.tdat |
| COLDCHEM low-temperature (sub-zero C) “Pitzer” database, from Toner and Catling | thermo_coldchem.tdat |
| The Cemdata18 thermodynamic database for hydrated Portland cements and alkali-activated materials, from Lothenbach et al. | thermo_cemdata.tdat |
Visual Minteq Manual Pdf
Visual Minteq Database
One way to look at solving problems in Visual Minteq is to use the “Calc. From mass & charge balance” option, Option 2, all the time. This is likely more intuitive and in keeping with the overall theme in many text books. The key to remember in using this option is that in Visual Minteq using the pH “Calc. From mass & charge balance”. Thank you for downloading Visual MINTEQ from our software library. The download version of Visual MINTEQ is 3.18. The download was scanned for viruses by our system. We also recommend you to check the files before installation. The download is provided as. ACRONYMS & ABBREVIATIONS MEP MERL MES MESOPAC MESOPLUME MESOPUFF MESS METL METL MEXAMS MFBI MFC MFD MGD MH MHD MIBK MIC MIC MICAD MICE MICROMORT MIDSD MINTEQ MIPS MIS MISTT MTTS ML ML MLAP MLSS MLVSS MMD MMS MMT MOA MOBILE Multiple Extraction Procedure Municipal Environmental Research Laboratory Modal Emission Model Mesoscale. PHREEQC and Minteq are among publicly available water chemistry programs that provide a variety of parameters including activity coefficients. PHREEQC has a coupling feature that allows developers to easily integrate it into their models. Although accessibility to thermodynamic models gives tremendous benefits, discrepancies may occur as. Visual MINTEQ ver. 3.0Visual MINTEQ is a freeware chemical equilibrium model for the calculation of metal speciation, solubility equilibria, sorption etc.
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