The adsorption according to Langmuir is calculated via:

with

c_s = concentration of the substances adsorbed in the matrix [kg/kg

𝜒₁ = 1st Langmuir isotherm [m³(fluid)/kg(matrix)]

𝜒₂ = 2nd Langmuir isotherm [-]

ρ₀ = fluid density [kg/m³],

c = concentration of substances dissolved in the fluid [kg/kg]

Parameter variation for adsorption according to Langmuir

The adsorption type is defined with the associated isotherms 𝜒₁ and, if applicable, 𝜒₂ during the input dialogue of the mass transport calculation. The default setting is a transport calculation without adsorption.

Degradation and production