Geoscience Reference
In-Depth Information
Table 5.5.
Continued.
Site
description
Contaminant and
concentration
Scheme
Note
Reference
Chemical waste
landfill site
(Albuquerque, NM)
Cr
In-situ
electrokinetic
extraction (ISEE)
The ISEE developed by Sandia National Laboratories (SNL) to remove
hexavalent Cr from unsaturated soil; applied to the depth of 4.3 m;
circulation of anode fluid for chemical conditioning and pH control
USEPA (1998)
Cd: 660 mg kg
−
1
Cu: 770 mg kg
−
1
Cr: 7300 mg kg
−
1
Ni: 860 mg kg
−
1
Pb: 730 mg kg
−
1
Zn: 2600 mg kg
−
1
Treated zone: clay soil with a volume of 2500 m
3
; undertaken to reduce
Cd to
<
50 mg kg
−
1
Military airbase
(Woensdrecht,
The Netherlands)
Ex-situ
electrokinetics
Lageman (1993)
after treatment of 2 years (1992-1994)
Treated zone: argillaceous soil with a volume of 2500 m
3
; undertaken to
reduce Cd to
<
10 mg kg
−
1
Temporary landfill
site (Stadskanaal,
The Netherlands)
Cd: 20-3400
(
>
180) mg kg
−
1
(also CN, Pb, Zn)
Ex-situ
electrokinetics
Lageman (1993)
after treatment of 2 years (1990-1992)
Treated zone: heavy clay soil with a volume of 300 m
3
; reduction of As
concentration to
<
30 mg kg
−
1
Former timber
impregnation plant
site (Loppersum,
The Netherlands)
As: 400-500
(
>
250) mg kg
−
1
In-situ
electrokinetics
Lageman (1993)
after treatment of 65 days (1989)
Treated zone: clay soil with a volume of 250 m
3
; reduction of Zn
concentration to 600 mg kg
−
1
Galvanizing plant
site (Delft,
The Netherlands)
Zn: 2410
(
>
1400) mg kg
−
1
In-situ
electrokinetics
Lageman (1993)
after treatment of 8 weeks (1987)
Cu:
>
5000 mg kg
−
1
Pb:
>
500-1000 mg kg
−
1
Former paint factory
site (Groningen,
The Netherlands)
In-situ
electrokinetics
First pilot project on electrokinetic remediation; treated zone: peat and clay
soil with a volume of 300 m
3
; reduction of Cu and Pb concentrations to
<
200 and
<
280 mg kg
−
1
, respectively, after treatment of 8 weeks (1987)
Lageman (1993)
Superfund site
(Corvallis, Oregon)
Cr
In-situ
electrokinetics
Field study to evaluate the technical feasibility of electrokinetic remediation
technique to treat a site contaminated with Cr plating wastes
Banerjee
et al
.
(1989)
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