Environmental Engineering Reference
In-Depth Information
TABLE 11.6
Summary of Selected Technologies for Site Remediation
Technology
Soil Washing/
Flushing
Stabilization/
Solidiication
Factor
Vitriication
Electrokinetics
Bioremediation
SVE
Effect on
contaminants
Thermal oxidation
and metal
immobilization
Decomposition of
organics, metal
immobilization on
electrodes
Metal and chemical
removal and possible
organic oxidation
Immobilization
within matrix
Biodegradation of
organic contaminants
or conversion of
metals
Vaporization of
contaminants
Commercial
viability
Commercially
available
Commercial scale
Some custom design
needed
Commercially
available
Commercially
available
Commercially
available
Beneicial use
Glass aggregate
Manufactured soil by
addition of bulking
agents
Manufactured soil by
addition of bulking
agents
Compacted ill,
capping material
Soil can potentially be
reused
Potential recovery
of solvents
Waste streams
generated
Debris from
screening and
wastewater
Limited residues,
some luids,
electrodes may
require disposal
Debris from screening,
wastewater, sludge
from wastewater
treatment
Debris from
screening,
Wastewater, air
emissions, debris
from screening
Gaseous
emissions that
require
treatment
Requirements
Plasma arc facility/
dewatering/
Desalination, water,
fuel, power
In or ex situ, power
requirements
Water, power
Land area, mixing
equipment,
additives, power
Water, additives power
for mixing equipment
if slurries or aeration
systems, land if
landfarming
Power for
generating air
low, wells,
gaseous
treatment
Costs
$350-425/tonne
$50 to 100/m 3
Flushing: $18 to 50/m 3
$30 to 250 per tonne
Slurries: $130 to 200/m 3
In situ: $30 to 100/m 3
Composting: $300 to
500/m 3
Landfarming: <100/m 3
$10 to 150/m 3
 
Search WWH ::




Custom Search