Table 7.
Comparing trivalent Cr remedial efficiency with factors and some responses.
| Runs | Remedial | Current, | Residual, | Electroosmotic volume, | Polarity reversal | Voltage gradient, | Initial Cr |
|---|---|---|---|---|---|---|---|
| efficiency, % | A | pH | mL | rate, hr | V/cm | concentration, mg/kg | |
| R5 | 79.97 | 1.03 | 11.2 | 2344.50 | 24 | 0.6 | 60 |
| R6 | 72.73 | 3.02 | 12.9 | 1201.50 | 0 | 1 | 60 |
| R9 | 65.66 | 2.65 | 12.6 | 1399.50 | 48 | 1 | 60 |
| R8 | 36.93 | 0.21 | 9.8 | 81.00 | 0 | 0.2 | 60 |
| R13 | 34.88 | 0.13 | 10.4 | 63.00 | 48 | 0.2 | 60 |
| R11 | 25.50 | 0.61 | 12.0 | 1387.84 | 0 | 0.6 | 100 |
| R1 | 0.00 | 1.17 | 10.2 | 1728.00 | 0 | 0.6 | 20 |
| R2 | 0.00 | 1.32 | 10.9 | 2542.50 | 48 | 0.6 | 20 |
| R3 | 0.00 | 2.25 | 12.6 | 814.50 | 24 | 1 | 20 |
| R4 | 0.00 | 2.04 | 12.7 | 2272.50 | 24 | 1 | 100 |
| R7 | 0.00 | 0.14 | 8.1 | 396.00 | 24 | 0.2 | 20 |
| R10 | 0.00 | 1.12 | 11.9 | 2236.50 | 48 | 0.6 | 100 |
| R12 | 0.00 | 0.15 | 8.3 | 324.00 | 24 | 0.2 | 100 |