Givens
Model Parameters
General Soil Properties
porosity
(n)
fraction of organic carbon (f
OC
)
water content
control volume (V
C
)
L
bulk densitiy (rho
bulk
)
kg/L
Relation to Water Table
Vadose Zone
Saturated Zone
Environment
Temperature (T)
C
Non-Aqueous Phase Liquid (NAPL) Properties
molecular weight of NAPL (MW
NAPL
)
g/mol
residual loading (V
NAPL
/V
C)
L/L
NAPL density (rho
NAPL
)
kg/L
Properties of NAPL Constituents
Constituent name
molecular weight
g/mol
intrinsic solubility
mol/L
log (K
ow
)
log(L/Kg)
mole fraction in NAPL
mol/mol
Henry's Constant
L-atm/mol
Solution
Calculations
Volume of water in control volume (V
W
)
L
Mass of soil in control volume (X
S
)
kg
Mass of NAPL in control volume (X
NAPL
)
mol
Volume of air in control volume (V
V
)
mol
Log(K
OC
)
log(L/kg)
K
OC
L/kg
K
d
L/kg
M
i,t
0
mol
Coefficients
C
W
mol/L
C
S
mol/kg
x
i
mol/mol
C
V
mol/L
Equations
M
i,t
mol
Error
Mass of i in each phase (in mols)
M
i,W
mol
M
i,S
mol
M
i,N
mol
M
i,V
mol
Sum
i
mol
% Mole fraction in each phase
F
i,W
F
i,S
F
i,N
F
i,V
Sum
i
Mass of i in each phase (in grams)
M
i,W
grams
M
i,S
grams
M
i,N
grams
M
i,V
grams
Sum
i
grams
Concentrations (mass based)
Concentration
i,W
mg/L
Concentration
i,S
mg/Kg
Concentration
i,N
mg/L
NAPL
Concentrations (mol based)
Concentration
i,W
mol/L
Concentration
i,S
mol/Kg
Concentration
i,N
mol/L
NAPL