Statistical analysis of patterns of PCDDs and PCDFs in stack emission samples and identification of a marker congener

Fiedler, Heidelore; Lau, Christoph; Eduljee, G.H.

doi:10.1034/j.1399-3070.2000.00109.x

Cited by 9 publications

(4 citation statements)

References 18 publications

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“…Studies also showed that there was a strong correlation between the concentration of 2,3,4,7,8-PeCDF and the TEQ value of PCDD/Fs. 33 The correlation coefficient R value was 0.825, which was also consistent with the current results. 34,35 3.5.…”

Section: Resultssupporting

confidence: 91%

“…Although 2,3,4,7,8-PeCDF was not the main congener, it contributed most to the total I-TEQ value as a result of the high TEQ factor of 0.5. Studies also showed that there was a strong correlation between the concentration of 2,3,4,7,8-PeCDF and the TEQ value of PCDD/Fs . The correlation coefficient R value was 0.825, which was also consistent with the current results. , …”

Section: Results and Discussionsupporting

confidence: 91%

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Pollutant Emissions during Co-incineration of Landfill Material Refuse-Derived Fuel in a Lab-Scale Municipal Solid Waste Incineration Fluidized Bed Furnace

Cai

Zhan

et al. 2020

Energy Fuels

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Landfill material refers to the waste that has been buried in landfill sites for a long time. The combustible components of landfill material can be made into refuse-derived fuel (RDF) for energy utilization. According to previous studies, landfill material refuse-derived fuel (LMRDF) mainly consisted of plastic and rubber with a relatively high calorific value. In this study, the proximate and ultimate analyses of LMRDF and municipal solid waste were compared. The kinetic analyses of LMRDF, RDF, and their mixture with different ratios were also conducted. Furthermore, the pollutant emissions during co-incineration of LMRDF in a labscale municipal solid waste incineration (MSWI) fluidized bed furnace were investigated. The effects of the co-incineration ratio, incineration temperature, and water content of LMRDF on pollutant emissions were also observed. The emissions of NO x , SO 2 , CO, and HCl varied a lot under different experimental conditions, while the contents of heavy metal in the flue gas and fly ash almost remained the same. Additionally, the concentration of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) in the flue gas when 30 wt % dried LMRDF was co-incinerated at 850 °C was the lowest, with the value of 7.53 ± 0.89 ng/m 3 (0.63 ± 0.26 ng of I-TEQ/m 3 ). It was supposed that the soil attached on the LMRDF enhanced the furnace fluidization level, resulting in better combustion of waste. The good correlation of HCl and PCDD/F concentrations in the flue gas was found. Most importantly, the concentration of PCDD/Fs in the fly ash increased with the co-incineration ratio of LMRDF because more Cu and Cl entered the furnace with the soil impurities. The ratios of PCDFs/PCDDs in all of the flue gas and fly ash are greater than 1, indicating that de novo synthesis might be the dominant way to form PCDD/Fs. In summary, the results revealed that coincineration of a certain amount of LMRDF in the MSWI fluidized bed furnace would not largely increase the pollutant emissions.

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Section: Resultssupporting

confidence: 91%

Section: Results and Discussionsupporting

confidence: 91%

Pollutant Emissions during Co-incineration of Landfill Material Refuse-Derived Fuel in a Lab-Scale Municipal Solid Waste Incineration Fluidized Bed Furnace

Cai

Zhan

et al. 2020

Energy Fuels

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“…Using hierarchical cluster analysis, Fiedler et al [6] examined the congener distributions of 109 emission gases from MSW incinerators, hazardous waste incinerators, and the iron and steel industry (ISI). The MSW and hazardous waste incinerators produce patterns that are indistinguishable.…”

Section: Introductionmentioning

confidence: 99%

The formation of dioxins in combustion systems

Stanmore

2004

Combustion and Flame

432

215

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“…Moreover, the effects of binary mixtures of DLCs needed to be verified. Therefore, 9 PCDDs and PCDFs (PCDD/Fs), which are known to be primary contributors to toxic equivalents in environmental media , were selected as test substances by use of in vitro (cell‐based), transactivation assays based on luciferase as the reporter gene (LRG) under control of species‐specific AhR .…”

Section: Introductionmentioning

confidence: 99%

Relative sensitivities among avian species to individual and mixtures of aryl hydrocarbon receptor–active compounds

Wei

Zhang

et al. 2015

Environmental Toxicology and Chemistry

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Dioxins and dioxin-like compounds (DLCs) are potent toxicants to most vertebrates. Sensitivities to DLCs vary among species. In the present study, the sensitivities of avian species (chicken [Gallus gallus], ring-necked pheasant [Phasianus colchicus], and Japanese quail [Coturnix japonica]) to some polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) were determined by using species-specific, in vitro, transactivation assays based on a luciferase reporter gene under control of species-specific aryl hydrocarbon receptors. In ring-necked pheasant and Japanese quail, 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) was not the most potent inducer of toxic effects. Especially for Japanese quail, the relative potency values of most of 9 PCDD/Fs tested were greater than for TCDD. The rank order of avian species sensitivities to DLCs was chicken > ring-necked pheasant > Japanese quail. Effects of binary mixtures of TCDD, 2,3,7,8-tetrachlorodibenzofuran, and 2,3,4,7,8-pentachlorodibenzofuran were strictly additive. Moreover, we also found that the primary DLCs that were responsible for most of the potency of the DLC mixtures can be deduced by using ordination in a multidimensional space defined by the avian species sensitivities. Overall, the relative potency and the species sensitivities of these chemicals could guide risk assessments to wild species when exposure to mixtures of DLCs in the environment.

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Statistical analysis of patterns of PCDDs and PCDFs in stack emission samples and identification of a marker congener

Cited by 9 publications

References 18 publications

Pollutant Emissions during Co-incineration of Landfill Material Refuse-Derived Fuel in a Lab-Scale Municipal Solid Waste Incineration Fluidized Bed Furnace

Pollutant Emissions during Co-incineration of Landfill Material Refuse-Derived Fuel in a Lab-Scale Municipal Solid Waste Incineration Fluidized Bed Furnace

The formation of dioxins in combustion systems

Relative sensitivities among avian species to individual and mixtures of aryl hydrocarbon receptor–active compounds

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