– Portrait of CRD flows in Quebec: from the deposit to the outlets


In Canada, residues from Construction, Renovation and Demolition (CRD) projects represent approximately the third of all landfilled waste. There are currently some opportunities for some CRDs such as residues from road works, bituminous mix and metal, whose homogeneity facilitates recycling. But what about buildings that have a wide variety of materials that are difficult to separate from each other? What are the limitations of the sorting operations that are done on these CRD residues from buildings? What alternative is available when the energy recovery of treated wood and particle board is limited by environmental constraints? How to recycle gypsum? What can be done with the 481,000 t of fine fraction generated annually when daily cover is no longer an option? This presentation is done jointly with RECYC-QUÉBEC and tries to answer these questions.