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Mise au point d'une chaîne d’extraction de la fraction organique des résidus ménagers collectés

This project proposes the development of a process chain to handle waste collected from households (WCH), in accordance with an innovative concept advanced by Viridis Environnement (the project’s industrial partner). With this approach, the WCH organic fraction is extracted and treated to produce organic matter suitable for repurposing, particularly in agriculture. It will also help divert decomposable material from landfills and, thereby, substantially reduce GHG emissions. WCHs may contain household waste or organic waste sorted at the source, (OWSS), in bulk or in bags. WCH from a two or three-stream collection system contains decomposable matter, as well as foreign bodies such as glass, metal, plastics, and pebbles, etc. This assortment of foreign bodies is called mixed residual material (MRM)—our process chain will also treat this fraction. Once the MRM is organically dried, it becomes easier to recover the organic matter and extract the foreign bodies, yielding an organic fraction that can be repurposed.
This process chain for WCH, a significant improvement over current technologies, will better address the Québec market’s specific requirements in these ways:
a) It can be adopted by small communities with less than 50,000 inhabitants that produce from 5,000 to 20,000 tonnes per year of WCH;
b) It provides these communities with a simple alternative for managing waste that is based on the extraction and immediate repurposing of the organic fraction in agriculture;
c) It makes it possible to obtain a final product suitable for agriculture purposes, e.g., for use as amendments or for composting into granulated organomineral fertilizer;
d) It opens up new possibilities for the recycling of dried plastics found in household waste;
e) It provides a highly effective alternative for the recovery of organic matter that will make it possible to meet MDDELCC targets.

Denis Potvin

IRDA

CRIBIQ's contribution

$ 100 000