Table 4.3
Contaminations and treatments applied to the columns
Remediation method
Reagent
Contaminant
Agent concentration
Injected volume (PV)
Frequency
Oxidation
Activated persulfate
Decane/menthol
[Na
2 S
2 O
8 ]
¼ 550 g L
À1
8
1/week
[FeSO
4 ]
¼ 27.8 g L
À1
4
1/month
Oxidation
Fenton long slots
Decane/menthol
[H
2 O
2 ]
¼ 63 g L
À1
14
2 PV/day
Fenton short slots
Decane/menthol
[FeSO
4 ]
¼ 3.15 g L
À1
Oxidation
Ozone
Decane/menthol
10.5 g
130
Continuous
BTX
Surfactant
flushing
Tween
®
80
Decane/menthol
10 CMC
40
2 PV/day
Decane/toluene
Sparging
Air
Decane/menthol
14
2 PV/day
BTX
Thermal treatment
Sand
Decane/menthol
Sand
BTX
Sand + 10% clay
BTX
Sand + 20% clay
BTX
218
F. Jousse et al.