TABLE 3.
EPS composition of different biofilm samples as determined by different methods
| EPS extraction method | Sludge type | Protein (mg/g of VS) | Carbohydrate (mg/g of SS) | Reference |
|---|---|---|---|---|
| Heating (70°C) | UASBa | 80 | 13 | Schmidt and Ahring (19a) |
| Heating (80°C) | Activated sludge | 121 | 8 | Frølund et al. (7) |
| NaOH (pH 11) | Activated sludge | 96 | 22 | Frølund et al. (7) |
| Dowex and mixing | Activated sludge | 243 | 48 | Frølund et al. (7) |
| Dowex and mixing | Sewer biofilm | 154 | 12 | Jahn and Nielsen (10a) |
| Dowex and mixing | Anaerobic granules | 140 | 41 | Batstone and Keller (1) |
a
UASB, upflow anaerobic sludge blanket.