Table 6 Evaluation of algae removal efficiency and ecotoxicity of GreenTD for outdoor and indoor studies
Evaluation concentration | Evaluation time | Outdoor study | Indoor study | ||
|---|---|---|---|---|---|
Blue-green algae + GreenTD 0.5 mg/L | Blue-green algae + GreenTD 1 mg/L | Blue-green algae + GreenTD 0.5 mg/L | Blue-green algae + GreenTD 1 mg/L | ||
Algae count (cells/mL) | Initial | 200,227 | 163,000 | ||
30 min | 98,880 | 80,100 | 86,500 | 63,000 | |
60 min | 97,600 | 79,600 | 85,800 | 65,100 | |
Removal efficiency (%) | 30 min | 50.7 | 60.0 | 46.9 | 61.3 |
60 min | 51.3 | 60.2 | 47.4 | 60.1 | |
Daphnia ecological toxicity (TU) | 30 min | 0 | 0 | 0 | 0 |
60 min | 0 | 0 | 0 | 0 | |
Ecotoxicity of luminescent bacteria (TU) | 30 min | 0 | 0 | 0 | 0 |
60 min | 0 | 0 | 0 | 0 | |