Industrial wastewater
La Rochette | Schweighouse sur Moder | 67 | FRANCECapacity in IE : 50 000
Capacity in m³ per day : 3 100
Activity : Paper mill
Year of construction : 1992
TYPE OF TREATMENT
Water treatment- Coagulation
- Flocculation
- Flotation
- Biological basin
- Settling tank
Sludge treatment- Belt filter press
TECHNICAL DATA OF PLANT
| Capacity of treatment | Treated water discharge standards | |
| Daily volume | 3 100 m³/d | |
| Peak flow | 200 m³/h | |
| Pollution load | 50 000 IE | |
| Biological oxygen demand (BOD5) | 3 000 kg/j | 45 mg/l |
| Chemical oxygendemand (COD) | 7 000 kg/j | 200 mg/l |
| Suspended solids | 700 kg/j | 20 mg/l |
The Inhabitant Equivalent (IE) is a notion used in sanitation to evaluate the size of waste water treatment plants, it corresponds to an estimate of pollution caused by the "inhabitant equivalent" defined thus :
- 60 g/inhabitant/day for DBO5
- 90 g/inhabitant/day for suspended matter
- 15 g/inhabitant/day for total nitrogen
- 4 g/inhabitant/day for total phosphor
