The extraction rates were 280 m
3
Áh
À1 . At that flow rate, the radius of influence
was 5.65 m (the negative pressure observed was À0.05 mbar at this distance from the
extraction well).
The final pollutant concentrations are shown in Table 3.10.
The extracted pollutants presented in three different states:
• As pure product: 821 kg
• As pollutant adsorbed on activated carbon filter (air): 300 kg
• As pollutant adsorbed on activated carbon filter (water): 2.15 kg
The total mass of pollutants extracted is estimated to be 1124 kg for an initial
estimated pollutant amount of 1200 kg. TCB makes up 98% of the pollutants. The
mass of lindane extracted is estimated at 330 g.
Fig. 3.23 Detailed view of
extracted gas treatment
process (Broquaire et al.
2014). 1: hot gas input; 2:
heat exchanger; 3: mist
eliminator; 4: activated
carbon filter
Fig. 3.24 Detailed view of
the activated carbon filters
(Broquaire et al. 2014)
3 In Situ Thermal Treatments and Enhancements: Theory and Case Study
197
3
Áh
À1 . At that flow rate, the radius of influence
was 5.65 m (the negative pressure observed was À0.05 mbar at this distance from the
extraction well).
The final pollutant concentrations are shown in Table 3.10.
The extracted pollutants presented in three different states:
• As pure product: 821 kg
• As pollutant adsorbed on activated carbon filter (air): 300 kg
• As pollutant adsorbed on activated carbon filter (water): 2.15 kg
The total mass of pollutants extracted is estimated to be 1124 kg for an initial
estimated pollutant amount of 1200 kg. TCB makes up 98% of the pollutants. The
mass of lindane extracted is estimated at 330 g.
Fig. 3.23 Detailed view of
extracted gas treatment
process (Broquaire et al.
2014). 1: hot gas input; 2:
heat exchanger; 3: mist
eliminator; 4: activated
carbon filter
Fig. 3.24 Detailed view of
the activated carbon filters
(Broquaire et al. 2014)
3 In Situ Thermal Treatments and Enhancements: Theory and Case Study
197