Table 2 Jar tests are based on alum doses and chlorine dose (4.0 mg/l) in Nile River samples
Parameters | Nile River sample | Alum doses (mg/l) + chlorine dose (4.0 mg/l) | |||||
|---|---|---|---|---|---|---|---|
20 | 22 | 24 | 26 | 28 | 30 | ||
Algalcount (Organism/ml) | 5400 | 700 | 680 | 670 | 670 | 650 | 660 |
pH | 8.1 | 7.4 | 7.3 | 7.3 | 7.3 | 7.3 | 7.2 |
Turbidity (NTU) | 9.33 | 2.10 | 1.84 | 1.73 | 1.67 | 1.65 | 1.68 |
Residual Alum (mg/l) | 0.07 | 0.16 | 0.17 | 0.18 | 0.19 | 0.20 | 0.21 |
Residual chlorine (mg/l) | – | 1.4 | 1.4 | 1.5 | 1.5 | 1.5 | 1.6 |