Industrial wastewater
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Graindorge | Livarot | 14 | FRANCE
Capacity in IE : 10 000
Capacity in m³ per day : 400
Activity : Food-processing industry
Category : Cheese factory
Year of construction : 2002
Water treatment
- Biological treatment
- Settling tank
Sludge treatment
- Gravity belt thickener
- Sludge storage tank
Graindorge | Livarot | 14 | FRANCECapacity in IE : 10 000
Capacity in m³ per day : 400
Activity : Food-processing industry
Category : Cheese factory
Year of construction : 2002
TYPE OF TREATMENT
Water treatment- Biological treatment
- Settling tank
Sludge treatment- Gravity belt thickener
- Sludge storage tank
TECHNICAL DATA OF PLANT
| Capacity of treatment | Treated water discharge standards | |
| Daily volume | 400 m³/d | |
| Peak flow | 70 m³/h | |
| Pollution load | 10 000 IE | |
| Biological oxygen demand (BOD5) | 610 kg/j | 20 mg/l |
| Chemical oxygendemand (COD) | 930 kg/j | 90 mg/l |
| Suspended solids | 125 kg/j | 30 mg/l |
| Total Kjeldahl nitrogen | 27 kg/j | 15 mg/l |
| Total phosphorus | 27 kg/j |
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
