Phytoremediation: Identificazione dei geni coinvolti nell ... - Biologia

Table 1
Comparison of pretreatment methods
Process Costs of
transportationa in situ—no costs
(E/t/km)
Costs of site Costs of
preparation leachate
(E/m2 ) utilization
(E/t)
Costs of
processing
(E/t)
Advantages Disadvantages
Composting 1–2 3–5 – 10–25 Volume and water Time consuming (2–3 month).
content reduction Special equipment is required.
End-product as hazardous waste
Compaction 1–2 3–5 135 Not available Volume reduction Special equipment is required.
Recovery of metals End-products as hazardous waste
(remaining biomass, leachates)
Pyrolysis 1–2 – – 20–30 Significant volume End-product as hazardous waste
reduction. Useful end-product (coke breeze)
(pyrolytic gas)
a Dump truck for hazardous wastes.