Balance of NH3 and behavior of polychlorinated dioxins and furans in the course of the selective non-catalytic reduction of nitric oxide at the TAMARA waste incineration plant

Investigations were performed on the selective non-catalytic reduction (SNC R) of nitric oxide (NO) at TAMARA, the pilot-scale waste incineration plant of the Karlsruhe Research Center. Aqueous ammonia (NH3) was injected into the combustion chamber as reductant. The influence of NH3 on various inorga nic and organic compounds in the flue gas was investigated. The concentrati ons of NO were reduced by up to about 90% by NH3 injection. The concentrati ons of most of the other inorganic and organic compounds, including in part icular PCDD and PCDF, did not change significantly. (C) 1999 Elsevier Scien ce Ltd. All rights reserved.