| Technology |
Examples |
Benefits |
Limitations |
Factors to consider |
| Insitu |
Bio remediation
Biosparging
Bioventing
Bioagumentation |
Most efficient,
Non invasive,
Relatively passive
Natural attenuation,
Process treat soil and water |
Environmental
Constraints,
Extended treatment
time difficulties |
Biodegradative abilities of indigenous micro organism,
Presence of metals &other inorganic,
Environmental parameters,
Biodegrability of pollutants,
Chemical solubility,
Geological factors,
Distribution of pollutants |
| Exsitu |
Land farming
Compositing
Biopiles |
Cost efficient,
Low cost, can be done on site |
Space requirements,
Extended treatment time,
Need to control abiotic loss,
Mass transfer problem,
Bio availability limitation |
As above |
| Bio reactors |
Slurry reactors
Aqueous reactors |
Rapid degradation,
Kinetic optimized, environmental
Parameters,
Enhances mass transfer effective,
use of inoculants and surfactants |
Soil requires excavation,
Relatively high cost capital,
Relatively high operating cost |
Toxicity of amendments,
Toxic concentration of contaminants |
|
