Mean percentage nutrient removal results and mean percentage algal biomass increases during HRAP trials throughout the experimental period
| . | Autumn . | Winter . | Spring . | Summer . | Annual . |
|---|---|---|---|---|---|
| Nitrate and nitrite (mg/L) | 4% | −83% | 3% | −11% | −6% |
| Orthophosphate (mg/L) | 15% | 3% | 53% | 57% | 32% |
| Ammonia (mg/L) | 68% | 56% | 97% | 65% | 71% |
| Total nitrogen (mg/L) | 45% | 34% | 84% | 26% | 64% |
| Total phosphorus (mg/L) | 21% | 5% | 60% | 61% | 37% |
| Dried biomass (mg/L) | 215% | 160% | 399% | 299% | 274% |
| 750 nm | 269% | 237% | 513% | 267% | 330% |
| 680 nm | 245% | 198% | 483% | 256% | 302% |
| 440 nm | 216% | 149% | 397% | 223% | 252% |
| . | Autumn . | Winter . | Spring . | Summer . | Annual . |
|---|---|---|---|---|---|
| Nitrate and nitrite (mg/L) | 4% | −83% | 3% | −11% | −6% |
| Orthophosphate (mg/L) | 15% | 3% | 53% | 57% | 32% |
| Ammonia (mg/L) | 68% | 56% | 97% | 65% | 71% |
| Total nitrogen (mg/L) | 45% | 34% | 84% | 26% | 64% |
| Total phosphorus (mg/L) | 21% | 5% | 60% | 61% | 37% |
| Dried biomass (mg/L) | 215% | 160% | 399% | 299% | 274% |
| 750 nm | 269% | 237% | 513% | 267% | 330% |
| 680 nm | 245% | 198% | 483% | 256% | 302% |
| 440 nm | 216% | 149% | 397% | 223% | 252% |