On the Formation of Polychlorinated dibenzo-p-dioxins and Polychlorinated Dibenzofurans in Combustion of Artificial Refuse Derived Fuel Using a Laboratory-scale Fluidized-bed Combustion Reactor

Noriaki Ishibashi*, Shigenobu Okajima*, Yoshinobu Yoshihara**, Kazuie Nishiwaki** and Masakatsu Hiraoka*
* Research Center for Eco-Technology, Ritsumeikan University
** Department of Mechanical Engineering, Faculty of Engineering, Ritsumeikan University
+ Correspondence should be addressed to Noriaki Ishibashi:
(1-1-1, Nojihigashi, Kusatsu-city, Shiga 525-8577 Japan)

Abstract
To clarify the effects of combustion-and composition-related parameters on the promotion and prevention of the formation of polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) in municipal solid waste incineration, multiple regression analysis has been carried out by analyzing the experimental data obtained at the laboratory-scale fluidized-bed combustion reactor. The laboratory-scale fluidized-bed combustion reactor, to which artificial refuse derived fuel is fed, is designed to simulate the combustion process in a municipal solid waste incinerator. The artificial refuse derived fuels used are made of pulverized materials, which are typical of municipal solid wastes. The result of multiple regression analysis shows that volatility, Cu contents in the RDF, and HCl, CO concentrations, promote the generation of PCDDs and PCDFs in the flue gas.

Key words: dioxins, municipal solid waste incinerator, refuse derived fuels, multiple regression analysis