Time, minute | TiO2 concentration, g | COD, mg/l |
120 | 0.5 | 5760 |
180 | 0.5 | 4530 |
240 | 0.5 | 3800 |
300 | 0.5 | 3600 |
360 | 0.5 | 3200 |
360 | 0.5 (under UV lamp) | 3400 |