Residual kaolinite and bentonite clay turbidity after jar test coagulation at varying chitosan degrees of deacetylation and doses
| DD (%) . | Clay . | Starting turbidity (NTU) . | Residual turbidity (NTU) (±95% CI, n = 9) . | ||||
|---|---|---|---|---|---|---|---|
| 0 mg/L . | 1 mg/L . | 3 mg/L . | 10 mg/L . | 30 mg/L . | |||
| 70 | K | 104.3 | 97.7 (9.67) | 52.2 (76.65) | 7.1 (1.18) | 95.8 (4.84) | 95.5 (5.41) |
| B | 35.7 | 32.3 (3.09) | 3.1 (0.99) | 0.3 (0.03) | 2.3 (1.94) | 24.9 (7.20) | |
| 75 | K | 50.3 | 48.6 (4.38) | 48.1 (4.58) | 4.2 (0.71) | 45.3 (6.25) | 48.1 (4.86) |
| B | 34.8 | 33.6 (2.83) | 4.1 (1.67) | 0.4 (0.06) | 0.6 (0.16) | 13.8 (0.87) | |
| 80 | K | 49.0 | 47.7 (4.10) | 15.1 (18.41) | 4.6 (0.35) | 47.7 (4.93) | 47.3 (4.80) |
| B | 38.1 | 36.3 (1.44) | 3.4 (1.33) | 0.4 (0.01) | 0.8 (0.10) | 13.5 (3.25) | |
| 85 | K | 43.6 | 41.4 (1.99) | 41.6 (3.15) | 3.5 (0.78) | 19.8 (2.47) | 40.8 (3.67) |
| B | 37.2 | 35.9 (1.52) | 5.6 (2.08) | 0.3 (0.13) | 0.4 (0.04) | 13.2 (2.25) | |
| 90 | K | 33.5 | 33.7 (2.72) | 24.2 (38.76) | 3.5 (0.87) | 8.4 (2.01) | 32.9 (1.84) |
| B | 37.0 | 32.8 (3.26) | 4.0 (0.47) | 0.4 (0.04) | 0.6 (0.02) | 12.3 (1.58) | |
| 95 | K | 38.4 | 37.3 (4.14) | 37.2 (1.62) | 4.6 (0.32) | 14.1 (2.76) | 36.6 (36.59) |
| B | 33.8 | 34.0 (0.80) | 4.6 (1.03) | 0.3 (0.07) | 0.7 (0.15) | 15.7 (2.90) | |
| DD (%) . | Clay . | Starting turbidity (NTU) . | Residual turbidity (NTU) (±95% CI, n = 9) . | ||||
|---|---|---|---|---|---|---|---|
| 0 mg/L . | 1 mg/L . | 3 mg/L . | 10 mg/L . | 30 mg/L . | |||
| 70 | K | 104.3 | 97.7 (9.67) | 52.2 (76.65) | 7.1 (1.18) | 95.8 (4.84) | 95.5 (5.41) |
| B | 35.7 | 32.3 (3.09) | 3.1 (0.99) | 0.3 (0.03) | 2.3 (1.94) | 24.9 (7.20) | |
| 75 | K | 50.3 | 48.6 (4.38) | 48.1 (4.58) | 4.2 (0.71) | 45.3 (6.25) | 48.1 (4.86) |
| B | 34.8 | 33.6 (2.83) | 4.1 (1.67) | 0.4 (0.06) | 0.6 (0.16) | 13.8 (0.87) | |
| 80 | K | 49.0 | 47.7 (4.10) | 15.1 (18.41) | 4.6 (0.35) | 47.7 (4.93) | 47.3 (4.80) |
| B | 38.1 | 36.3 (1.44) | 3.4 (1.33) | 0.4 (0.01) | 0.8 (0.10) | 13.5 (3.25) | |
| 85 | K | 43.6 | 41.4 (1.99) | 41.6 (3.15) | 3.5 (0.78) | 19.8 (2.47) | 40.8 (3.67) |
| B | 37.2 | 35.9 (1.52) | 5.6 (2.08) | 0.3 (0.13) | 0.4 (0.04) | 13.2 (2.25) | |
| 90 | K | 33.5 | 33.7 (2.72) | 24.2 (38.76) | 3.5 (0.87) | 8.4 (2.01) | 32.9 (1.84) |
| B | 37.0 | 32.8 (3.26) | 4.0 (0.47) | 0.4 (0.04) | 0.6 (0.02) | 12.3 (1.58) | |
| 95 | K | 38.4 | 37.3 (4.14) | 37.2 (1.62) | 4.6 (0.32) | 14.1 (2.76) | 36.6 (36.59) |
| B | 33.8 | 34.0 (0.80) | 4.6 (1.03) | 0.3 (0.07) | 0.7 (0.15) | 15.7 (2.90) | |