Removal of Heavy Metals in Synthetic Bottom Ash of Burnt Urban Waste by Using of Polyvinyl Chloride

Abstract

Synthetic bottom ash of burnt urban waste containing heavy metal oxides, CdO, Cr₂O₃, Cu₂O, PbO and ZnO, is reacted with polyvinyl chloride, PVC. The synthetic ash is prepared from chemical reagents of heavy metal oxides, Al₂O₃, CaO and SiO₂. It is revealed that the heavy metal oxides except Cr₂O₃ are removed as metal chloride from the synthetic ash by PVC. It is considered that the heavy metals in bottom ash of burnt urban waste can be removed by use of end of life PVC.