Adsorption Sample Clauses
Adsorption. Surfactant
Adsorption. As an alternative to cation exchange, the retention of chromium has also been modeled as a "Langmuir- type" isotherm in UTCHEM. Cˆ 14 = a14 C14,1 1 + b14 C14,1 (6.6)
Adsorption. The tracer adsorption for any type of tracer is assumed to be linear and can be modeled using an input retardation factor parameter (Ds) as Ds = CT CTA = (1 − φ)ρraT φρACTA A = 1 or 4 (4.11) where aT is the mass of adsorbed tracer divided by the mass of rock. ρr and ρA are the rock and water ( A = 1) or gas phase (A = 4) densities. CT is the adsorbed tracer concentration. The adsorption is applied to total tracer flux (convective and dispersive ) and modeled as (Vt )ret . = u 1 (4.12) φSA 1 + Ds where u is the ▇▇▇▇▇ flux in ft/d and φ is the porosity.