SAMPLING SITES | ASSOCIATIONS (Hydrophytes) | INITIAL CONCENTRATIÓN NO3 (mg/L) | FINAL CONCENTRACION NO3(mg/L) | REMOVAL EFFICIENCY (%) | C.V. % |
1 | Lemna—Ceratophyllum | 2.2 | 1.3 | 38 | |
Berula—Lemna | 2.2 | 1.8 | 17 | 38.3 | |
Polygonum—Hydrocotyle | 2.2 | 1.0 | 54 | ||
Polygonum—Azolla | 2.2 | 0.7 | 68 | ||
2 | Lemna—Ceratophyllum | 9.4 | 1.2 | 87 | |
Berula—Lemna | 9.4 | 0.2 | 98 | 86.2 | |
Polygonum—Hydrocotyle | 9.4 | 3.5 | 63 | ||
Polygonum—Azolla | 9.4 | 1.6 | 83 | ||
3 | Lemna—Ceratophyllum | 14.5 | 1.4 | 90 | |
Berula—Lemna | 14.5 | 0.9 | 94 | ||
Polygonum—Hydrocotyle | 14.5 | 1.4 | 90 | 34.5 | |
Polygonum—Azolla | 14.5 | 0.6 | 96 | ||
4 | Lemna—Ceratophyllum | 5.5 | 2.6 | 53 | |
Berula—Lemna | 5.5 | 1.2 | 78 | ||
Polygonum—Hydrocotyle | 5.5 | 1.1 | 80 | 62.0 | |
Polygonum—Azolla | 5.5 | 0.6 | 89 | ||
5 | Lemna—Ceratophyllum | 24.5 | 2.1 | 91 | |
Berula—Lemna | 24.5 | 0.4 | 98 | 103.5 | |
Polygonum—Hydrocotyle | 24.5 | 8.5 | 65 | ||
Polygonum—Azolla | 24.5 | 2.6 | 89 |