The new wastewater treatment plant has the capacity to treat waste generated from 620,000 people.

The plant has two separate lines, which collect the wastewater that comes from the 37 constituent municipalities of MEL. 

The plant’s first line has the capacity to treat wastewater at an average flow rate of 2.8 m3/s and the second line is capable of   treating storm water at a maximum flow rate of 5.3 m3/s .

Veolia said the facility complies with high standards of parameters including nitrogen and phosphates to protect water quality, where the treated water is discharged into the river.

The plant also has the capability to produce biogas stored in gasometers, which is enought to power about 94% of its heat energy requirements. The remaining 6% of the energy comes from natural gas.

The  methane produced from the plant can also be used in a cogeneration facility whichconverts gas into electricity, enough to power about 800  homesper year.

Veolia’s subsidiary OTV  led the consortium that constructed the plant  and  added a permanent control system which reduces emissions and odour that arise as a result of the plant’s operations.

Veolia Water France CEO Frédéric Van Heems said: “Ovilléo is truly a 21st-century plant. We are proud to have been selected by Métropole Européenne de Lille for its operation. 

“Perfectly integrated into its region, this new-generation plant is an extraordinary concentrate of environmental and technological innovation. Marquette is now ahead of the curve for wastewater treatment.”


Image: Veolia secures contract to operate wastewater treatment plant in France. Photo: Courtesy of Veolia.