Production of halogenated aromatics from waste incineration – indicator parameters and operational control
Öberg, T.
Proceedings from the Swedish Flame Days, Studsvik, Sweden, September 8-9, 1987.

Abstract
The flue gas concentrations and chlorination pattern of different groups of chlorinated aromatics, including polychlorinated dioxins (PCDD) and dibenzofurans (PCDF), show close covariation. Flue gas concentrations of specific isomers as well as the pattern of congeners of PCDD/PCDF can be predicted from chlorinated benzenes and phenols.

The production and emission of halogenated aromatics from waste incinerators are shown to be influenced by the operating conditions. Significant factors to achieve a reduction of this production are:

• combustion efficiency
• energy density (or temperature) in the furnace
• the halogen content in the fuel

The emission with the flue gas does not necessarily respond to changes in combustion parameters if a high efficiency flue gas cleaning system is installed. Neither can prediction models for chlorinated aromatics be applied without regard to separation efficiencies in the flue gas cleaning systems.