GMS:Chemical Reaction Package: Difference between revisions

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{{MT3DMS Links}}
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The ''Chemical Reaction Package'' dialog is used to solve the concentration change due to chemical reactions. Chemical reactions can be defined for the MT3DMS, MT3D-USGS, PHT3D, and SEAM3D models. The dialog is reached through the model menu using the [[GMS:MT3DMS Commands|'''Chemical Reaction Package''']] command which is only available once the package has been activated in the [[GMS:Basic_Transport_Package_Dialog#Packages|''Packages'']] dialog and species have been defined. The chemical reactions include linear or nonlinear sorption isotherms and first-order irreversible rate reactions (radioactive decay or biodegradation).
The ''Chemical Reaction Package'' dialog is used to solve the concentration change due to chemical reactions. Chemical reactions can be defined for the MT3DMS, MT3D-USGS, PHT3D, and SEAM3D models. The dialog is reached through the model menu using the [[GMS:MT3DMS Commands|'''Chemical Reaction Package''']] command which is only available once the package has been activated in the [[GMS:Basic_Transport_Package_Dialog#Packages|''Packages'']] dialog and species have been defined. The chemical reactions include linear or nonlinear sorption isotherms and first-order irreversible rate reactions (radioactive decay or biodegradation).
 
{|
[[File:MT3D-ChemicalReaction.png|thumb|center|350 px|The ''Chemical Reaction Package'' dialog]]
|-
The dialog has the following options:
|[[File:MT3D-ChemicalReaction.png|thumb|left|350 px|The ''Chemical Reaction Package'' dialog]]
|The dialog has the following options:
*''Sorption'' – Select one of the following methods:
*''Sorption'' – Select one of the following methods:
**"(none)"
**"(none)"
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*''Bulk density''
*''Bulk density''
*''Immobile porosity''
*''Immobile porosity''
 
|}


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Latest revision as of 20:47, 21 August 2018

MT3DMS
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Chemical Reaction Package
Transport Observation Package
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The Chemical Reaction Package dialog is used to solve the concentration change due to chemical reactions. Chemical reactions can be defined for the MT3DMS, MT3D-USGS, PHT3D, and SEAM3D models. The dialog is reached through the model menu using the Chemical Reaction Package command which is only available once the package has been activated in the Packages dialog and species have been defined. The chemical reactions include linear or nonlinear sorption isotherms and first-order irreversible rate reactions (radioactive decay or biodegradation).

The Chemical Reaction Package dialog
 The dialog has the following options:
  • Sorption – Select one of the following methods:
    • "(none)"
    • "Linear isotherm"
    • "Freundich isotherm"
    • "Langmuir isotherm"
    • "First-order kinetic sorption (non-equilibrium)"
    • "Dual-domain mass transfer (without sorption)
    • "Dual-domain mass transfer (with sorption)"
  • Kinetic rate reaction – Has the following options:
    • "(none)"
    • "First-order irreversible kinetic reaction"
    • "Zero-order reaction (decay or production)"
  • Variable input
    • Layer by layer
    • Cell by cell
  • Specify IC of sorbed phase
  • Layer – Specifies layer to apply chemical reaction.
  • Bulk density
  • Immobile porosity
v • e
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