Domestic wastewater
Libreville | GABONCapacity in IE : 600
Capacity in m³ per day : 90
Year of construction : 2005
Project owner : /
Consultant : Palais Présidentiel
TYPE OF TREATMENT
Water treatment- Lifting station
- 2 biological basins JUMBO SYMAC J3
- 2 deaerators
- 2 settling tanks SYDAC D3
Sludge treatment- 1 sludge storage tank SYLO S4
TECHNICAL DATA OF PLANT
| Capacity of treatment | Treated water discharge standards | |
| Capacity of treatment | 600 IE | |
| Daily volume | 90 m³/d | |
| Peak flow | 12 m³/h |
| Biological oxygen demand (BOD5) | 36 kg/d | 25 mg/l |
| Chemical oxygen demand (COD) | 83 kg/d | 125 mg/l |
| Suspended solids | 48 kg/d | 35 mg/l |
| Total Kjeldahl nitrogen | 7,80 kg/d |
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
