Quality category | na | TN loading rate (g m−2 year−1) | TN removal rate (g m−2 year−1) | TN removal Efficiency (%) | |||
---|---|---|---|---|---|---|---|
Av. ± 1SE (range) | Med | Av. ± 1SE (range) | Med. | Av. ± 1SE (range) | Med. | ||
2 and 3 | 112 | 505 ± 579 (2.12–2486) | 255 | 181 ± 251 (−0.3–1270) | 93 | 39 ± 21 (−12.8–93) | 38 |
2 | 88 | 578 ± 608 (2.12–2486) | 378 | 207 ± 269 (−0.3–1270) | 120 | 39 ± 23 (−12.8–93) | 38 |
3 | 24 | 237 ± 353 (12.3–1424) | 113 | 85 ± 128 (1.7–584) | 43 | 39 ± 16 (14.8–87) | 36 |