Dosing rate | Turbidity | Degree of | Test of aggregation | Separation efficiency | |||||||||||
Type of | Upflow | Point of | MA [%] | MI [%] | PR [%] | NA [%] | φ [%] | [%] | Φ [%] | ||||||
Clarifier | Aluminium | SF- A110** | Velocity | Measurement | CE | CEF | destab. | aggreg. | |||||||
sulphate | δ | αA | |||||||||||||
[mg/l] | [mg/l] | [m/h] | [NTU] | [NTU] | [-] | [-] | |||||||||
- | - | - | Raw Water | 102 | 54 | - | - | - | - | - | - | - | - | - | |
Pretreator (Retention time of about 3.5 hrs) | 60 | 0 | 1.5 | Flocculation chamber outlet | 102 | 4.9 | 0.909 | 0.952 | 75.5 | 14.7 | 6.2 | 3.6 | - | - | - |
Hydraulic jump | 102 | 4.0 | 0.926 | 0.960 | 17.6 | 57.9 | 22.3 | 2.2 | - | - | - | ||||
Clarifier outlet | 7.1 | 1.5 | 0.972 | 0.985 | 1.5 | 2.5 | 1.6 | 1.4 | 93.0 | 98.5 | 94.4 | ||||
Filtrate | 0.50 | 0.32 | 0.994 | 0.997 | 0.18 | 0.32 | 0.50 | 0.32 | 99.5 | 99.7 | 93.5 | ||||
Clariflocculator (Retention time of about 4 hrs) | 60 | 0 | 1.2 | Flocculation chamber outlet | 102 | 4.9 | 0.909 | 0.952 | 75.5 | 14.7 | 6.2 | 3.6 | - | - | - |
Clarifier outlet | 7.2 | 2.9 | 0.946 | 0.972 | 1.2 | 1.9 | 1.4 | 2.7 | 92.9 | 97.2 | 95.6 | ||||
Filtrate*) | 0.71 | 0.53 | 0.990 | 0.995 | 0.18 | 0.53 | 0.71 | 0.53 | 99.3 | 99.5 | 99.8 | ||||
HR Clarifier (Retention time of about 20 minutes) | 52 | 0.172 | 15.5 | Flocculation chamber outlet | 102 | 1.7 | 0.969 | 0.983 | 16.1 | 1.3 | 102 | 1.7 | - | - | - |
Clarifier outlet | 7.0 | 1.4 | 0.974 | 0.986 | 1.4 | 1.2 | 7.0 | 1.4 | 93.1 | 98.6 | 94.4 | ||||
Filtrate*) | 0.71 | 0.53 | 0.990 | 0.995 | 0.18 | 0.53 | 0.71 | 0.53 | 99.3 | 99.5 | 99.8 |