Case study Lillehammer Wastewater Treatment Plant, Noruega
Plant for nitrogen and phosphourous removal.
Design data
| Parameter |
Value |
| Total BOD7 |
2 900 kg/d |
| Total COD |
5 925 kg/d |
| TN |
755 kg/d |
| TP |
107 kg/d |
| TSS |
2 900 kg/d |
| Design flow |
1 200 m³/h |
| Maximum flow |
1 900 m³/h |
| PE |
70 000 |
| Temperature range |
10°C |
Effluent requirements
| Parameter |
Årsmedel |
| Phosphorous |
<0.2 mg TP/l |
| Nitrogen |
70% reduction of TN |
| BOD7 |
<10 mg/l |
Results
| Parameter |
Influent (mg/l) |
Effluent(mg/l) |
Reduction (%) |
| BOD7 |
81.67 |
3.33 |
96 |
| TN |
25.46 |
5.17 |
80 |
| TP |
3.67 |
0.08 |
98 |
The results shown in the table above are average values during the year 2000.
