Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Characteristics of the effluent taken at the Mont St-Grégoire WWTP after the settling basin.
| Type of contaminant | Concentration |
|---|---|
| Total phosphorus (mg/L) | 1.8 |
| Dissolved COD (mg/L) | 36 |
| Particles in suspension (mg/L)* | 820 |
| Nitrogen-NH3 (mg-N/L) | 0.61 |
| Nitrites (mg-N-NO2/L) | 2.53 |
| Nitrates (mg-N-NO3/L) | 8.12 |
| Oils and greases (mg/L) | 24.1 |
*Before using this sample, it has been filtrated through a 0.02 μm filter so we assume there are no particles in suspension left.
