The Scientific World Journal / 2014 / Article / Tab 2

Research Article

Geochemical Modeling of Trivalent Chromium Migration in Saline-Sodic Soil during Lasagna Process: Impact on Soil Physicochemical Properties

Table 2

Applications of Lasagna process at pilot- and field-scales from inception to date.

Treatment zone material ContaminantSoil typeSite dimensions
(length × width × depth)
Polarity reversal/
downtime
Removal efficiency, %Voltage gradient, (V/cm)/Current (A) Power consumption, kwh/m3Run time, monthElectroosmotic conductivity, cm2 V−1 s−1 (×10−5)Treatment zone spacing, cmReference

AC + sandp-nitrophenolKaolin/
Kaolinite/
clay loam
1.22 m × 0.61 m × 0.61 m Yes/
continuous
981 (constant)/96.2 (based on current density)5130.56–1.735.56[20]

GAC1TCE2Clay loam4.6 m × 3 m
× 4.6 m
Yes/
continuous
990.35–0.45/40 (constant)41.260[25]

Iron filings + kaolinTCEClay loam6.4 m × 9.2 m
× 13.7 m
Yes/3-week95–990.23–0.31 (constant)/
110–200
121.260 & 150[26]

Iron filings + kaolinTCEClay loam27.4 m × 22 m
× 13.5 m
No/pulse mode990.15–0.26 (constant)/
500–700
24150[15, 27]

Iron filings + kaolinTCEClay loam33 m × 24 m
× 7.5 m
60 (after 1 year)0.16 (constant)/
250–400
24150[15]

Granular activated carbon; 2Trichloroethylene.