Large Scale Co-combustion of Plastics from the End-of-Life Electrical and Electronic Equipment at the Wuerzburg Municipal Solid Waste Energy) Recovery Plant (MHKW

摘要

In a controlled test campaign, a broad consortium of international stakeholders has demonstrated the effects of end-of-life electrical and electronic equipment shredder residue (ESR) on the performance of a large scale municipal solid waste energy recovery combustor MHKW in Wuerzburg, Germany. The ESR was highly concentrated with electrical and electronic plastics. Three test conditions were investigated: 1) base case without additional electrical and electronic shredder residue, 2) addition of 11 weight percent ESR containing E&E plastics, 3) addition of 26 weight percent ESR with E&E plastics. The fact that some waste electrical and electronic equipment is already in the mixed MSW feed to many waste-to-energy plants made the testing important for the MHKW operator as well as for the local regulatory authorities (EPA). The tests investigated the effect of ESR on plant operations, air emissions (acids, organics, and metals), ash characteristics, and significantly, on the destruction efficiencies for several chlorinated and brominated substances present in the ESR.