...ble waste from landfills, enhancing the calorific value of the remaining MSW, and generating a cleaner biowaste fraction that produces higher quality compost. After setting up a waste-sorting scheme, Rennes Métropole launched an ambitious waste prevention policy in 2005 with the goal of bringing down the production of residual municipal solid waste from 240 kg/person/yr in 2005 to 200 kg/person/y ...