Environmental Engineering Reference
In-Depth Information
Table 6.5
PCB Profile and Contamination Level in Rome, GA, Soil
Sample A
Concentration
(μg/g)
Sample B
Concentration
(μg/g)
Sample C
Concentration
(μg/g)
Sample
ID
Depth
(ft)
Borehole
a
GT-1
GT-2
GT-3
GT-4
GT-5
GT-6
GT-7
GT-8
GT-9
1
1
1
1
1
2
2
2
1
1
1-1.5
1-1.5
1.5-2
1-1.5
2
1.5
1.5
2
590.5
940.6
254.7
798.5
577.3
294.4
13.6
214.4
201.8
2412.9
653.1
505.3
852.2
807.6
155.2
1.6
158.7
353.9
765.6
597.7
526.6
687.9
435.9
154.0
114.0
208.1
100.9
a
Borehole 1 located approximately 0.5 ft from SB9B-5. Borehole 2 located approximately 1.5
ft from SB9B-5. The PCB contamination is predominantly Aroclor 1242.
Low Solids Reactor
(8.3% solids, w/w)
M
soil
= 98 kg
M
water
= 1087 kg
Medium Solids Reactor
(53.9% solids, w/w)
M
soil
= 240 kg
M
water
= 205 kg
High Solids Reactor
(72.6% solids, w/w)
M
soil
= 215 kg
M
water
= 82 kg
Water
FeSO
4
(20 mM)
Ethanol (0.1% wt)
Tween 80 (5 g/L)
Anaerobic
Inoculum
Hudson River, NY
(1.0% wt)
Anaerobic Phase
6-8 Months
Tween + FeSO
4
+ EtOH
FeSO
4
+ EtOH
Control
Aerobic Phase
2-4 Months
Continuous Mixing
GEMs: LB400 + RHA1
Vermiculite Carrier
(3.0% wt)
Water
Ammonium Phosphate
End Pilot Study
Final Sample Analysis
8-10 Month Total
Treatment
Figure 6.26
Flowchart illustrating process streams for pilot-scale biotreatment of
Rome, GA, soil.
