ART employs two types of ex-situ soil/sediment chemical oxidation processes:
1) Saturated Soil Contacting - typical contaminant reduction efficiency in range of 50-80%
2) Soil Oxidation in Slurry Reactors - contaminant reduction greater than 90% up to 99% achievable depending on type of contamination and soil/sediment matrix.
Chemical oxidation can be potentially effective for a wide range of organic compounds found in soil and hazardous waste, including but not limited to:
Main Contaminants of Concern |
Untreated Sediment (mg/kg) |
Treated Sediment (mg/kg) |
Removal Efficiency
|
TCA |
940 |
3 |
> 99% |
TCE |
130 |
< 3.5 |
> 97% |
PCE |
4,300 |
41 |
> 99% |
Benzene |
46 |
< 0.6 |
> 99% |
PCB (Aroclor-1016) |
530 |
24 |
> 95% |
Metals |
|
|
|
Mercury |
0.26 mg/L TCLP |
0.0010 mg/L TCLP |
> 99% |
Lead |
4.7 mg/L TCLP |
< 0.040 mg/L TCLP |
> 99% |