Role of Fe₂O₃ in fly ash surrogate on PCDD/Fs formation from 2-monochlorophenol.

ABSTRACT: The correlation between the content and morphology of Fe₂O₃ and the yields of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) was studied in this work. Three fly ash surrogates containing 1%, 2.5%, and 4% of Fe₂O₃ were prepared and their effects on PCDD/Fs formation were investigated and compared to our previously studied 5% iron oxide sample using 2-monochlorophenol precursor model. As the intermediate of PCDD/Fs, environmentally persistent free radical formation propensity was correlated with the PCDD/Fs formation yields for different iron oxide samples. PCDD/Fs yield increases exponentially with the increasing iron content under pyrolytic conditions. On the contrary, low iron oxide content promotes oxidation and l

SUBMITTER: Guan X 

PROVIDER: S-EPMC6504581 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature