Increasing heavy metal emissions due to PVC-derived chlorine in simulated MSW incineration
Conference
·
OSTI ID:20003324
The effect of PVC-derived chlorine on heavy metal emissions in MSW incineration was investigated using a tubular furnace and simulated MSW spiked with PVCs and heavy metals (Cd, Cr, Cu, and Zn). The authors varied the molar ratio of the chlorine content to that of the heavy metal (Cl/M ratio) from 3--200 as one parameter. The results indicated that the major species found in the fly ash were chlorides of alkaline and alkali-earth metals, whereas those identified in the bottom ash were MgSiO{sub 3}, SiO{sub 2} and some complex aluminates and silicates. The emission of heavy metals and/or their compounds, with extreme and medium volatility, tended to be enhanced within the lower Cl/M range, whereas those with a refractory volatility were likely to be affected within the higher Cl/M range. However, those with an extremely refractory volatility were less affected by an increase of the Cl/M ratio. The variation of speciation and partitioning in MSW combustion as affected by the Cl/M ratio are discussed.
- Research Organization:
- National Central Univ., Chung-Li (TW)
- OSTI ID:
- 20003324
- Report Number(s):
- CONF-990608--
- Country of Publication:
- United States
- Language:
- English
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