Achievable purification efficiencies (calculated from turbidity values) and the resulted sediment volumes after polyelectrolyte addition (in 0.5 mg L−1 concentration)
| Added materials . | Turbidity (NTU) . | Purification efficiency (%) . | Sediment volume (mL) . |
|---|---|---|---|
| – | 333 | – | – |
| UNIFLOC-M20 (0.5 mg L−1) | 100 | 70 | Not measured |
| UNIFLOC-LT27 (0.5 mg L−1) | 65 | 80 | Not measured |
| Na-bentonite (100 mg L−1) + BOPAC (20 mg L−1 Al3+) + UNIFLOC-M20 (0.5 mg L−1) | 4 | 98.5 | 30 |
| Na-bentonite (100 mg L−1) + BOPAC (20 mg L−1 Al3+) + UNIFLOC-LT27 (0.5 mg L−1) | 4 | 98.5 | 15 |
| Added materials . | Turbidity (NTU) . | Purification efficiency (%) . | Sediment volume (mL) . |
|---|---|---|---|
| – | 333 | – | – |
| UNIFLOC-M20 (0.5 mg L−1) | 100 | 70 | Not measured |
| UNIFLOC-LT27 (0.5 mg L−1) | 65 | 80 | Not measured |
| Na-bentonite (100 mg L−1) + BOPAC (20 mg L−1 Al3+) + UNIFLOC-M20 (0.5 mg L−1) | 4 | 98.5 | 30 |
| Na-bentonite (100 mg L−1) + BOPAC (20 mg L−1 Al3+) + UNIFLOC-LT27 (0.5 mg L−1) | 4 | 98.5 | 15 |