Table 3.
Pollutant removal efficiencies of Canna indica and Heliconia psitacorum
| Parameter | Influent (mg/L) | Effluent (mg/L) | Efficiency (%) | p-value | ||
|---|---|---|---|---|---|---|
| C. indica | H. psitacorum | C. indica | H. psitacorum | |||
| BOD | 31.2 ± 13.9 | 2.5 ± 0.4 | 3.8 ± 0.5 | 90.5 ± 4.8 | 86.9 ± 7.3 | 0.012* |
| COD | 49.7 ± 20.1 | 3.9 ± 0.6 | 5.7 ± 0.7 | 75.5 ± 7.9 | 75.3 ± 9.0 | 0.794* |
| TN | 22.7 ± 5.3 | 12.6 ± 2.4 | 13.9 ± 3.8 | 44.3 ± 5.3 | 38.7 ± 2.7 | 0.002* |
| NH4+-N | 19.5 ± 5.8 | 9.5 ± 3.0 | 10.1 ± 4.6 | 56.9 ± 13.4 | 50.0 ± 9.4 | 0.001* |
| TP | 4.0 ± 0.1 | 1.7 ± 0.3 | 2.1 ± 0.2 | 56.7 ± 8.2 | 49.1 ± 7.3 | 0.001* |