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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Kočí, Jan | Prague |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Ali, M. A. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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Evans, Tim
in Cooperation with on an Cooperation-Score of 37%
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Publications (6/6 displayed)
- 2023Formation and distribution of dioxins in agglomerated products and emitted dust during iron ore sinteringcitations
- 2021Investigation of dye removal capability of blast furnace slag in wastewater treatmentcitations
- 2020Volatilisation of trace elements during reduction of iron ore by hydrogencitations
- 2019Elemental deportment and chemical structure evolution of iron ore during direct reduction in hydrogen atmosphere
- 2016Risk assessment and control of emissions from ironmakingcitations
- 2013Defining sustainability indicators of iron and steel productioncitations
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article
Formation and distribution of dioxins in agglomerated products and emitted dust during iron ore sintering
Abstract
This study investigated the concentrations of polychlorinated dibenzo-p-dioxins (PCDDs), dibenzofurans (PCDFs) and dioxin-like polychlorinated biphenyls (dl-PCBs) in sintered products and emitted dust samples. Four types of iron ores were used in this study and tested in a sinter pot grate. The PCDD/F analysis showed that the PCDD concentrations (0.175–1.415, pg/g, 0.028–0.087 pg WHO-TEQ/g) were higher than the PCDFs (0.105–0.327 pg/g, 0.006–0.032 pg WHO-TEQ/g) in sinter. In dust samples, three of the four test experiments showed PCDDs < PCDFs in their measured concentrations. Although PCDD/F concentrations were different in sinter and dust samples, the PCBs presented similar behavior in both solid samples. The PCB analysis (pg WHO-TEQ/g) showed that non-ortho PCBs were higher in concentration than the mono-ortho PCBs. The statistical analysis showed significant correlations between low chlorinated PCDD/F congeners and high chlorinated PCDD/F congeners, as well as strong correlations between non-ortho PCBs and mono-ortho PCBs in both sinter and dust samples. However, the dust samples presented stronger and more positive correlations among the PCDD/F and PCB congeners in comparison to corresponding data in sinter samples. The differences in PCDD/F profiles and correlation matrix in sinter and dust samples suggest the dioxin formation during sintering undergos different mechanisms in the sinter and dust samples.