Valorisation des ordures ménagères sous forme énergétique

Abstract
The household refuse of Agadir city have a high level of moisture and contain large amount of organic materials witch can be used in agriculture. Nevertheless, the plastic waste account for about 10.7 % percent by weight of domestic waste and poses an inconvenient to physical characteristics of the municipal solid waste compost. This work aims to sort by resin type various plastics packaging by using differential scanning calorimetry and to evaluate their heat of combustion by thermometric calorimetry. Experimental results chow a siginificant part of polyethylene containers that can be recycled. The plastics with very small volume chow a very heterogeneous composition but have a high heat value, approximately two times greater than to heat released by wood. Plastics burn with very little ash but most environmental concerns associated with their combustion have been related to gas emissions. Those are analysed by gas chromatography.