For additional information about water management in Gatineau, go to Gestion de l'eau (French only).
Solids extracted from the wastewater (sludge) generates biogas (methane), which is used to help heat the wastewater treatment buildings and supply the sludge drying plant (located on the same site as the wastewater treatment plant).
As indicated above, solids are transferred to the drying plant to be transformed into pellets. Those pellets are then distributed to farms where they are used as fertilizer. Since January 1, 2017, no municipal sludge has gone to a landfill site, even though this is permitted.
For additional information about the use of municipal sludge, you can consult the frequently asked questions page of Quebec's ministère de l'Environnement et de la Lutte contre les changements climatiques (French only).
Recognized for its quality of life, Gatineau is a city of 290,000 inhabitants. It is located on the north shore of the Ottawa River, and extends east and west of the Gatineau River.