TMP
Transmembrane pressure (Pa)
TOC
Total organic carbon (mg kg
À1 or %)
TPH
C 10–40 total petroleum hydrocarbon index (mg kg
À1 )
UF
Ultrafiltration
USZ
Unsaturated zone
VC
Volatile compound
VOC
Volatile organic compound
List of Symbols: Capital Letters
C
Concentration (mol l
À1 or mol m
À3 )
C S
Surfactant concentration (mol l
À1 or mol m
À3 )
D
Dispersion coefficient (m s
À2 )
D w
Diffusion coefficient of a pollutant in water (m s
À2 )
H
HENRY constant (Pa m
3 mol
À1 )
K
Equilibrium constant or hydraulic conductivity (m s
À1 )
K p
Partition coefficient of a solute between two nonmiscible phases
K oc Soil organic carbon–water partitioning coefficient
K ow Octanol/water partition coefficient
K m,i Partition coefficient of a contaminant i between the micellar phase and water
M w Molecular weight (Da i.e. g.mol
À1 )
N ca
Capillary number
P
Pressure (Pa)
P c
Capillary pressure (Pa)
R
Retention factor or curvature radius (m)
S
Surface (m
2 )
S i
Solubility of a compound (mol l
À1 ) or local saturation of a mobile phase
S sp
Surface area (m
2 m
À3 )
Sh
0
Dimensionless Sherwood number
T
Temperature (
C or K) or transmission (%)
V
Volume (m
3
)
V V
Porous volume (m
3 )
W
Energy (J)
Γ i
Excess concentration of a surfactant i at a o/w interface (mol m
À2 )
Χ i
Mole fraction of a component i
List of Symbols: Small Letters
a
Activity coefficient (mol l
À1 or mol m
À3 )
d p Characteristic length of pores (m)
eq Value at the equilibrium
g
Gravity constant (9.8 m s
À2 )
1 Contaminant Mobilization from Polluted Soils: Behavior and Reuse of Leaching. . .
3
Transmembrane pressure (Pa)
TOC
Total organic carbon (mg kg
À1 or %)
TPH
C 10–40 total petroleum hydrocarbon index (mg kg
À1 )
UF
Ultrafiltration
USZ
Unsaturated zone
VC
Volatile compound
VOC
Volatile organic compound
List of Symbols: Capital Letters
C
Concentration (mol l
À1 or mol m
À3 )
C S
Surfactant concentration (mol l
À1 or mol m
À3 )
D
Dispersion coefficient (m s
À2 )
D w
Diffusion coefficient of a pollutant in water (m s
À2 )
H
HENRY constant (Pa m
3 mol
À1 )
K
Equilibrium constant or hydraulic conductivity (m s
À1 )
K p
Partition coefficient of a solute between two nonmiscible phases
K oc Soil organic carbon–water partitioning coefficient
K ow Octanol/water partition coefficient
K m,i Partition coefficient of a contaminant i between the micellar phase and water
M w Molecular weight (Da i.e. g.mol
À1 )
N ca
Capillary number
P
Pressure (Pa)
P c
Capillary pressure (Pa)
R
Retention factor or curvature radius (m)
S
Surface (m
2 )
S i
Solubility of a compound (mol l
À1 ) or local saturation of a mobile phase
S sp
Surface area (m
2 m
À3 )
Sh
0
Dimensionless Sherwood number
T
Temperature (
C or K) or transmission (%)
V
Volume (m
3
)
V V
Porous volume (m
3 )
W
Energy (J)
Γ i
Excess concentration of a surfactant i at a o/w interface (mol m
À2 )
Χ i
Mole fraction of a component i
List of Symbols: Small Letters
a
Activity coefficient (mol l
À1 or mol m
À3 )
d p Characteristic length of pores (m)
eq Value at the equilibrium
g
Gravity constant (9.8 m s
À2 )
1 Contaminant Mobilization from Polluted Soils: Behavior and Reuse of Leaching. . .
3