The Lachute Landfill Site, which is operated by Gestion environnementale Nord-Sud, a sister company of RCI Environnement, has a total capacity of 15 million cubic metres, and its landfill zone covers an area of 78 hectares.

For final disposal, waste is spread out in layers inside watertight cells that are levelled, compacted and covered with earth or another inert material. Ditches dug along the periphery catch run-off water. Once the site has reached its maximum capacity, each cell will be sealed off with a layer of clay at least two metres thick and a layer of soil promoting revegetation.

Leachates from waste matter are collected through collection pipes installed at the bottoms of the cells, and the contaminated water is sent to aerated treatment and sedimentation basins for decontamination.

To collect biogas, the Lachute site uses a bioreactor landfilling technology. This technology, through which moisture can be added to the buried waste, accelerates the decomposition of waste and increases production of biogas. Approximately 50% of this renewable biogas is methane. The methane is channelled to an on-site power plant, where it is used to generate electricity.

The plant produces approximately 10 megawatt-hours of electricity, or the average consumption of more than 6,000 families annually. This energy prevents the emission of 50,000 tonnes of CO2 or 430,000 tonnes of greenhouse gases.

Cartable RCI (12.5 MB)
Gérer vos paiements sans papier.