Characteristics of excess sludge and its supernatant before disintegration
| Parameter . | |||||||
|---|---|---|---|---|---|---|---|
| Sludge . | Supernatant . | ||||||
| Hydration . | Capillary suction time (CST) . | Chemical oxygen demand (TCOD) . | . | Chemical oxygen demand (FCODNT) . | Soluble COD (SCODNT) . | Volatile fatty acids (VFANT) as CH3COOH . | Total nitrogen (TNNT) . |
| % . | s . | mgO2·L−1 . | pH . | mgO2·L−1 . | mgO2·L−1 . | mg·L−1 . | mgN·L−1 . |
| 97.46 | 11.30 | 17,120 | 6.9 | 267.00 | 117.01 | 25.30 | 12.00 |
| Parameter . | |||||||
|---|---|---|---|---|---|---|---|
| Sludge . | Supernatant . | ||||||
| Hydration . | Capillary suction time (CST) . | Chemical oxygen demand (TCOD) . | . | Chemical oxygen demand (FCODNT) . | Soluble COD (SCODNT) . | Volatile fatty acids (VFANT) as CH3COOH . | Total nitrogen (TNNT) . |
| % . | s . | mgO2·L−1 . | pH . | mgO2·L−1 . | mgO2·L−1 . | mg·L−1 . | mgN·L−1 . |
| 97.46 | 11.30 | 17,120 | 6.9 | 267.00 | 117.01 | 25.30 | 12.00 |