Automotive Shredder Residue (ASR) and Compact Disc (CD) Waste: Options for Recovery of Materials and Energy;Final rept

摘要

Two types of solid waste streams that will be rapidly increasing in the near future, requiring more processing capacity, are automotive shredder residue (ASR, in Finnish: autopaloittamojate) and waste compact discs (CDs). Both contain large fractions of polymers that may be recovered. New EU directives on landfilling and on end-of-life vehicles (ELVs) will enforce much larger amounts of ASR to be processed. The first objective of the work reported here is to re-evaluate in greater detail the options for recovery of materials or energy from ASR on large scale, against a background of increased capacity needed for treatment of this waste and more strict legislation in the future. Secondly, with scales of compact discs (CDs), especially writeable CDs doubling in Finland last year, increasing amounts of CDs are disposed of in waste. As a second, smaller part of the work reported here the options for recovery of materials or energy from waste CDs in Finland will be evaluated. One objective is to verify whether recycling of the polycarbonate and the aluminum is feasible, or maybe co-firing in a pulverized coal power plant is possible. Thus, this desk-top study will addresses the following two issues: Making an assessment of the technical options for large-scale processing of ASR in Finland, aiming at maximum recovery of energy and materials, using the suggestions by Ranta as a starting point; and Making an assessment of the technical options for the processing waste CDs in Finland, aiming at maximum recovery of energy and materials. For both waste streams, avoiding disposal on landfills is a first objective.