Abstract
Formation of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) was examined to investigate the influence of forms (organic or inorganic) and levels of chlorine on the PCDD/Fs formation during municipal solid waste incineration. We used a laboratory-scale fluidized bed reactor with a freeboard section heated by electric furnaces. Artificial solid wastes with organic (polyvinyl chloride, PVC) and inorganic (NaCl) sources of chlorine in different levels and copper (CuCl_2・2H_2O) were synthesized to simulate the composition of municipal solid waste. In these experiments, increased Cl content in waste rises CO concentration in flue gas and promotes the PCDD/Fs formation. The amount of PCDD/Fs formed can be predicted by the average CO concentration and Cl content in waste. It could not be said that there is a significant difference between the influences of PVC and NaCl on PCDD/Fs formation during combustion of the artificial solid waste.
