The Client's Needs
Given the high variability of its demographics, the municipality wanted to not only meet the standards for BOD and TSS, but to have a treatment system of wastewater with great flexibility. The need is to have a treatment capacity of 180 m³/day in normal times and to be able to double this capacity in summer. The discharge standards are: BOD = 25mg/L and TSS = 25mg/L.
The Solution
In providing a turnkey process system, the City of Noyan saved thousand of dollars compared to conventional installations.
Veolia’s supply to the City of Noyan:
- The sewage screening
- The biological treatment with MBBR process
- The secondary clarification
- The equalization basins
- The wastewater disinfection (UV lamps)
- A complete solution for the installation of equipment inside one single mechanical building. The start-up took place in September 2010 and the building opened in December 2010. Treatment capacities are equal or better than expected.
The Client
Located along the Richelieu River in Monteregie (Quebec), the City of Noyan has a permanent population of 1375 inhabitants. However, during Summer, the population increases to about 3,000 inhabitants, putting enormous pressure on the lagoons which leads to the City not meeting standards of wastewater discharges.