Table 2 Mean quality data for the influent into and effluent out of the Guishan WWTP from January to December, 2021 (12 datasets)
Parameters | Mean flow rate (m3 d−1) | BOD (mg L−1) | SS (mg L−1) | COD (mg L−1) | NH4+ (mg L−1) | TN (mg L−1) |
|---|---|---|---|---|---|---|
Influent | 23,810 ± 4,333 | 110 ± 24 | 90 ± 11 | 210 ± 36 | 30.4 ± 8.7 | 42.6 ± 8.8 |
Effluent | 21,800 ± 4,245 | 12.3 ± 2.3 | 12.4 ± 3.3 | 33.7 ± 8.1 | 14.3 ± 8.6 | 20.7 ± 9.4 |
Removal efficiency (%) | - | 88 ± 2 | 86 ± 2 | 84 ± 1 | 53 ± 18 | 51 ± 14 |