Case study Fraser Papers Inc., Madawaska, Maine, USA
Treatment of paper mill effluent for chronic toxicity removal.
Design data
| Parameter |
Value |
| Total BOD5 |
6 620 kg/d |
| Total COD |
16 330 kg/d |
| SS |
2 810 kg/d |
| Design flow |
31 000 m³/h |
| Maximum flow |
46 000 m³/h |
| Design temperature |
37°C |
Effluent requirements
| Parameter |
Value |
| BOD5 |
1 360 kg/d |
| Kronisk toxicitet |
>3.1% |
Results
| Parameter |
Influent (mg/l) |
Effluent (mg/l) |
Reduction |
| Total BOD |
175 |
30 |
83 |
| SS |
60 |
40 |
- |
In operation since June 2002. Has met toxicity requirements.
