Table 2.
A summary of sample characteristics after EC operations compared with control sample.
| Parameters | Control | Al5 | Al10 | Fe5 | Fe10 |
|---|---|---|---|---|---|
| SUVA (l m−1 mg −1) | 0.67 | 0.44 | 0.46 | 0.69 | 0.71 |
| Hydrophobicity (%) | 39.6 | 95.5 | 85.8 | 78.6 | 76.9 |
| Hydrophilicity (%) | 54.7 | 4.3 | 5.6 | 0.13 | 0.27 |
| Zeta potential (mV) | 14.1 | −0.5† | −1.2a | ||
| Carbohydrate: DOC (mg mg−1) | 0.49 | 0.44 | 0.32 | 0.5 | 0.41 |
| Protein: carbohydrate (mg mg−1) | 1.66 | 0.84 | 3.2 | 1.29 | 2.05 |
| Fluorescence peak | Humic-like substances | none | none | none | none |
| SAPs carbohydrates >30 kDa (%) | 40.64 | 25.82 | 56.19 | 13.73 | 8.27 |
| SAPs carbohydrates < 2 kDa (%) | 42.40 | 52.85 | 12.44 | 75.69 | 71.98 |
| SAPs proteins >30 kDa (%) | 16.44 | 13.23 | 17.15 | 5.11 | 5.13 |
| SAPs proteins < 2 kDa (%) | 66.92 | 63.21 | 50.86 | 81.06 | 74.69 |
†
Experiments were carried out in 60 s as explained in the content.