| MASTER OF WORK | A.I.D.E. B-4420 Saint-Nicolas |
| STUDIES OFFICE | COPPEE COURTOY |
| YEAR | Start-up : 2001 |
| PRESTATIONS | Like sub-contractor for B.E. COPPEE COURTOY : | · | Choice of the treatment line | | · | Establishment of the project (about process) | | · | Comparison of offers, establishment of the final report (process party) | |
| CAPACITY OF THE TREATMENT | | 110.000 | (transitory : 170.000) | E.H. | | 19.800 | (transitory : 30.600) | m³/day | | 5.940 | (transitory : 9.180) | kg BOD/day | |
| MAXIMUM PERMISSIBLE CONCENTRATION | | BOD | : | 25 | mg O2/l | | Suspended solids | : | 35 | mg/l | | N | : | 10 | mg/l | | P | : | 1 | mg/l | |
| TREATMENTS | | · | Preliminary treatments | | | | | Coarse and fine screening | | | Pumping station with Archimedes-screws | | | Desilting | | | Storm water collecting tanks | | | Settling | | | | | · | Secondary treatments | | | | | Biological treatment by activated sludge with N and P removal. | | | Settling | | | | | | · | Tertiary treatments | | | | | Phosphorus removal by chemical process | | | | | | · | Thickening of preliminaries sludge | | | | | · | Thickening by flotation of secondary and tertiary sludge | | | | | · | Dewatering of sludge by centrifugation | |
