Wastewater Treatment
The regulations on liquid wastes are constantly changing. From collection through to elimination, safety of the environment, goods and persons are key challenges.
Companies specialising in the collection, transportation and elimination of such wastes can deal with a broad range of substances, in a variety of sectors:
- Dredging and industrial cleaning: tank sludges, sewage, saturated activated carbons, greases, hydrocarbons & used oils
- Chemical industry wastes: acids & corrosive bases, peroxides, cyanides, halide residues, silicones & solvents
- Oil industry residues: tars and heavy products from the distillation process
Operations involving the cleaning of tankers and treatment equipment generate waters that have a high content of polluting residues and which require treatment prior to their discharge.
We can take care of the treatment of such effluents, covering the entire range of processes in order to comply with the regulatory challenges:
Some real-life cases
Operation of the effluent treatment station:
- Screening, homogenisation then sifting
- Biological treatment of activated sludges
- Flotation by DAF microbubbles
- Dewatering of sludges by screw press
| Parameters | Greases | Sewage | Discharge |
| DCO - mg/l | 160 000 | 15 000 | 2 000 |
| DB05 - mg/l | 69 000 | 7 000 | 800 |
| MES - mg/l | 83 000 | 15 000 | 600 |
| NTK - mg/l | 950 | 700 | 150 |
| Flow rate - m3/J | 10 | 20 |
Supply of an effluent treatment plant :
- Organic ultrafiltration
- Nanofiltration finishing
| Parameters | Input | Discharge |
| DCO - mg/l | 30 000 | 4 500 |
| DBO5 - mg/l | 9 000 | 1 000 |
| Flow rate - m3/h | 15 |
