Thermal behaviors of fluorine during (co-)incinerations of spent potlining and red mud: Transformation, retention, leaching and thermodynamic modeling analyses

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dc.authorid0000-0003-1099-4363en_US
dc.authorid0000-0001-6841-6457en_US
dc.contributor.authorZhang, Gang
dc.contributor.authorSun, Guang
dc.contributor.authorLiu, Jingyong
dc.contributor.authorEvrendilek, Fatih
dc.contributor.authorBüyükada, Musa
dc.contributor.authorXie, Wuming
dc.date.accessioned2021-06-23T19:54:12Z
dc.date.available2021-06-23T19:54:12Z
dc.date.issued2020
dc.departmentBAİBÜ, Mühendislik Fakültesi, Çevre Mühendisliği Bölümüen_US
dc.description.abstractSpent potlining (SPL) as a hazardous solid waste has a high content of inorganic fluorine. This study aimed at characterizing its transformation, retention and leaching behaviors with(out) the addition of red mud (RM) during the SPL incineration. The RM addition positively affected its retention and leaching rates. Its Ca-containing compounds caused Na3AlF6 and NaF to turn into more CaF2. 30% RM converted water-soluble NaF into more stable CaF2 than did SPL at 850 degrees C, thus reducing the leaching rate by 45.15%. 30% RM captured HF through its Ca content and enhanced its retention rate by 66.96%. 66.01% of the total fluorine was stably retained in the bottom ash, and thus, significantly reduced the toxicity of the SPL incineration products. SiO2 and Al2O3 exerted a thermally positive effect on NaF turning into CaF2. The fluoride retention of the bottom ash was mainly dominated by CaF2 and NaF with(out) RM. Smaller, coarser and more loose structures of the co-incinerated solid particles pointed to a synergistic interaction between SPL and RM. (C) 2020 Elsevier Ltd. All rights reserved.en_US
dc.identifier.doi10.1016/j.chemosphere.2020.126204
dc.identifier.issn0045-6535
dc.identifier.issn1879-1298
dc.identifier.pmid32088457en_US
dc.identifier.scopus2-s2.0-85079641824en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.chemosphere.2020.126204
dc.identifier.urihttps://hdl.handle.net/20.500.12491/10457
dc.identifier.volume249en_US
dc.identifier.wosWOS:000527935600088en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.institutionauthorEvrendilek, Fatih
dc.institutionauthorBüyükada, Musa
dc.language.isoenen_US
dc.publisherPergamon-Elsevier Science Ltden_US
dc.relation.ispartofChemosphereen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectSpent Potliningen_US
dc.subjectRed Muden_US
dc.subjectFluorineen_US
dc.subjectRetentionen_US
dc.subjectLeachingen_US
dc.subjectMineral Transformationen_US
dc.titleThermal behaviors of fluorine during (co-)incinerations of spent potlining and red mud: Transformation, retention, leaching and thermodynamic modeling analysesen_US
dc.typeArticleen_US

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