In-filter PCDF and PCDD formation at low temperature during MSWI combustion

This case study investigated PCDF and PCDD emissions from a 65 MW waste-to-energy plant to identify why an air pollution control system remodeling to accommodate increased production resulted in increased TEQ concentrations. Pre- and post-filter gases were collected simultaneously in four sample sets with varying filter temperatures and with/without activated carbon injection. Samples were analyzed to determine total PCDF and PCDD concentrations, as well as homologue profiles, and concentrations of individual congeners (some remained co-eluted). The total post filter PCDD concentrations where found to increase while the concentrations of PCDF and 2,3,7,8-substituted congeners declined. An investigation of the individual congener concentrations revealed that the increase of PCDD concentrations were due to a few congeners, suggesting a single formation route. The study also concludes that vital information about the formation could be obtained by not restricting the analysis to just the 2,3,7,8-substituted congeners.

Marklund, Stellan,1949-Umeå universitet,Kemiska institutionen(Swepub:umu)stma0004 (author)
Bristav, HenrikUmeå Energi AB, Box 224, SE-901 05 Umeå, Sweden (author)
Lundin, Lisa,1976-Umeå universitet,Kemiska institutionen(Swepub:umu)lilu0005 (author)
Umeå universitetKemiska institutionen (creator_code:org_t)

By the author/editor: Weidemann, Eva, ...; Marklund, Stella ...; Bristav, Henrik; Lundin, Lisa, 19 ...

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