|
Type of
Treatment
|
|
Fixation
|
|
Landfilling
|
|
Soil Extraction,
Leaching
|
|
Phytoremediation
|
|
Cost/m^3 ($)
|
|
90-200
|
|
100-400
|
|
250-500
|
|
15-40
|
|
Time Required
(months)
|
|
6-9
|
|
6-9
|
|
8-12
|
|
18-60
----------------------------
*dramatically
reduced after genetic
enhancement |
|
Additional Factors
& Expenses
|
|
transport/ excavation,
long-term monitering
|
|
long-term monitering
|
|
requires at least
5,000 m^3, chemical
recycle |
|
only time and land
commitment
|
|
Safety Issues
|
|
Leaching
|
|
Leaching
|
|
Residue
Disposal
|
|
Residue
Disposal
|
|
|
|
Benefits of Phytoremediation over
Conventional Methods
|