Research Article
Geochemical Modeling of Trivalent Chromium Migration in Saline-Sodic Soil during Lasagna Process: Impact on Soil Physicochemical Properties
Table 4
Design of experimental runs using the Box-Behnken design.
| Run order | Polarity reversal, (hr) | Voltage gradient, (V/cm) | Concentration, (mg/kg) | Remedial efficiency, % |
| 1 | 0 | 0.6 | 20 | 0.00 | 2 | 48 | 0.6 | 20 | 0.00 | 3 | 24 | 1 | 20 | 0.00 | 4 | 24 | 1 | 100 | 0.00 | 5 | 24 | 0.6 | 60 | 79.97 | 6 | 0 | 1 | 60 | 72.73 | 7 | 24 | 0.2 | 20 | 0.00 | 8 | 0 | 0.2 | 60 | 36.93 | 9 | 48 | 1 | 60 | 65.66 | 10 | 48 | 0.6 | 100 | 0.00 | 11 | 0 | 0.6 | 100 | 25.50 | 12 | 24 | 0.2 | 100 | 0.00 | 13 | 48 | 0.2 | 60 | 34.88 |
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