"Isomer Pattern Prediction of PCDFs, PCDDs, PCNs, and PCBs from Municipal Waste Incinerators and Calculation of Tetrachloronaphthalene Equilibrium Distributions" 

Fukuya Iino¹, Kentaro Tsutiya², Takashi Imagawa¹, Brian K. Gullett²

¹National Institute of Advanced Industrial Science and Technology
²United States Environmental Protection Agency, USA

Organohalogen Compounds,  Vol.50 pp.354-358 (2001)

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Abstract

Isomer pattern prediction of polychlorinated dibenzofurans (PCDFs), polychlorinated dibenzo-p-dioxins (PCDDs) from municipal waste incinerators (MWIs) was attempted by a model based on the N-1 chlorinated isomer patterns (N = the number of chlorine atoms of the fully chlorinated species)1,2. 

In order to predict the isomer patterns, constants representing the relative N-1 chlorinated species concentrations, such as a, b, c, and d for heptachlorodibenzofurans (H7CDFs), are derived from one or two typical stoker-type MWI isomer patterns of the N-1 chlorinated species [H7CDFs, heptachlorodibenzo-p-dioxins (H7CDDs)]. 

The predicted results were compared with other field data collected from MWIs in Japan. The prediction of PCDFs showed an excellent fit to the field fly ash data from the eight MWIs in Japan1. The PCDD prediction was not successful2.

Keywords

PCDFs, PCDDs, PCNs, PCBs, isomer patterns