Table 1.
Summary of bulk and optical properties of samples collected in the main treatment train of the Nine Springs Wastewater Treatment Plant.
| Sample | pH | [DOC] (mg-C L−1) | E2:E3 | S275–295 | SUVA254 (L mg-C−1 m−1) | Alkalinity (g-CaCO3 L−1) |
|---|---|---|---|---|---|---|
| Primary Effluent | 7.37 | 28.4 ± 0.5 | 6.64 ± 0.02 | 0.020 ± 0.000 | 1.16 ± 0.02 | 0.467 |
| A/O Effluent | 8.39 | 8.1 ± 0.2 | 5.24 ± 0.03 | 0.011 ± 0.000 | 2.17 ± 0.07 | 0.295 |
| A/O Secondary Clarifier | 7.83 | 7.9 ± 0.2 | 5.41 ± 0.02 | 0.011 ± 0.000 | 2.22 ± 0.06 | 0.292 |
| UCT Effluent | 8.09 | 9.0 ± 0.6 | 5.06 ± 0.01 | 0.012 ± 0.000 | 1.92 ± 0.14 | 0.313 |
| UCT Secondary Clarifier | 7.92 | 8.7 ± 0.3 | 5.46 ± 0.01 | 0.012 ± 0.000 | 2.03 ± 0.08 | 0.288 |
| UV Influent | 7.92 | 8.2 ± 0.4 | 5.45 ± 0.02 | 0.011 ± 0.000 | 2.13 ± 0.09 | 0.285 |
| UV Effluent | 7.95 | 8.5 ± 0.3 | 5.34 ± 0.03 | 0.011 ± 0.000 | 2.03 ± 0.08 | 0.281 |