Economic Consequences of Increasing Polymer Content for the U.S. Automobile Recycling Infrastructure

Jacqueline A. Isaacs and Surendra M. Gupta

Journal of Industrial Ecology, 1997, vol. 1, issue 4, 19-33

Abstract: Environmental awareness regarding resource use and emissions over the life cycle of the automobile has heightened the concerns for end‐of‐life (EOL) vehicle disposal. With increasing use of lighter materials to enhance fuel economythe steel dominated content of automobiles is changing to include a greater fraction of polymers. In light of impending regulations for vehicle disposal, various alternatives for remanufacturing and reuse of components and material disposal are under investigation. For example, if shredder operations are used to reclaim metallic materials, then the extent of disassembly will significantly affect proftability as well as the environment. Using goal programming, we explore changes to the current US. vehicle recycling infrastructure for their effects on dismantler and shredder proftabilities. To investigate the effect of lightweighting on the profrtabilrty of the recycling infrastructure, two specific vehicle designs are compared: a steel unibody and a polymer‐intensive vehicle. Other scenarios examine the outcomes for mandating removal of polymer materials during disassembly and for increasing the disposal cost of scrap polymer to that of hazardous waste. The results indicate that, if properly controlled, the current automobile recycling infrastructure in the United States can remain economically viable while it improves with respect to environmental considerations. Alternatively, implementation of certain policies that reduce profitability could cause disastrous consequences, resulting in the economic collapse of the infrastructure.

Date: 1997
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