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Experimental validation of trivalent Cr remedial efficiency and soil pH using voltage gradient = 1 V/cm; average concentration = 44.15 mg/kg; and polarity reversal rate = 0 hr.
| Response | Experimental result | Model prediction | Prediction error, % | 90% CI∗ | 90% CI | 90% PI∗∗ | 90% PI |
|---|---|---|---|---|---|---|---|
| low | high | low | high | ||||
| Cr, remedial efficiency | 75.88 | 51.11 | 32.64 | 31.17 | 75.95 | 18.36 | 100.00 |
| Residual soil, pH | 12.3 | 12.6 | 2.35 | 11.7 | 13.5 | 10.8 | 14.0 |
*Confidence interval.
∗∗Prediction interval.
