| Initial concentration (mg/L) | Cu(II) (RL) |
| 10 | 0.238 |
| 20 | 0.135 |
| 30 | 0.094 |
| 40 | 0.0725 |
| 50 | 0.0588 |
| 60 | 0.0495 |
| 70 | 0.0427 |
| 80 | 0.0375 |
| 90 | 0.0336 |
| 100 | 0.0303 |