Skip to Main Content

For the sake of simplicity, the number concentration in the bulk solution is calculated by assuming a 1:1 electrolyte solution concentration ratio obtained based on the ionic strength of equilibrium concentration with respect to Kunipia F (Na-montmorillonite; solid-to-liquid ratio: 250 g/l (Oda & Shibata 1999)), a refined bentonite commercially available from Kunimine Industries Co. Ltd, Japan, using PHREEQC (Parkhurst & Appelo 2013). Table 2 shows the parameters used for solving Equations (26)–(28).

Table 2

Parameters for the calculation of hydraulic conductivity

Density of water (ρw997 (kg/m3
Gravitational acceleration (g9.81 (m/s2
Viscosity of bulk solution (μ8.94 × 10−4 (Pa·s) 
Vacuum permittivity (ε08.85 × 10−12 (C/V/m) 
Relative permittivity of solution (εw78.5 
Elementary charge (e1.60 × 10−19 (C) 
Boltzmann constant (kB1.38 × 10−23 (J/K) 
Viscoelectric constant (fve1.02 × 10−15 (m2/V2) (Lyklema & Overbeek 1961) 
CEC of montmorillonite (CEC1.11 × 102 (meq/100 g) (Suzuki et al. 2012) 
Ionic strength of solution 0.03 (mol/l) 
Density of water (ρw997 (kg/m3
Gravitational acceleration (g9.81 (m/s2
Viscosity of bulk solution (μ8.94 × 10−4 (Pa·s) 
Vacuum permittivity (ε08.85 × 10−12 (C/V/m) 
Relative permittivity of solution (εw78.5 
Elementary charge (e1.60 × 10−19 (C) 
Boltzmann constant (kB1.38 × 10−23 (J/K) 
Viscoelectric constant (fve1.02 × 10−15 (m2/V2) (Lyklema & Overbeek 1961) 
CEC of montmorillonite (CEC1.11 × 102 (meq/100 g) (Suzuki et al. 2012) 
Ionic strength of solution 0.03 (mol/l) 

Close Modal

or Create an Account

Close Modal
Close Modal