Water-soluble fluorine detoxification mechanisms of spent potlining incineration in response to calcium compounds

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dc.authorid0000-0003-1099-4363en_US
dc.contributor.authorZhang, Gang
dc.contributor.authorSun, Guang
dc.contributor.authorChen, Zihong
dc.contributor.authorEvrendilek, Fatih
dc.contributor.authorLiu, Jingyong
dc.date.accessioned2021-06-23T19:53:52Z
dc.date.available2021-06-23T19:53:52Z
dc.date.issued2020
dc.departmentBAİBÜ, Mühendislik Fakültesi, Çevre Mühendisliği Bölümüen_US
dc.description.abstractIn this study, the detoxification mechanisms of water-soluble fluorine in the bottom ash and the distribution of fluorine during the spent potlining (SPL) incineration were characterized in response to four calcium compounds using an experimental tube furnace. CaSiO3, CaO, Ca(OH)(2), and CaCO3-assisted SPL incineration converted NaF to low toxicity compounds in the bottom ash yielding a conversion range of 54.24-99.45% relative to the individual SPL incineration. The two main mechanisms of the fluorine transformation were the formations of CaF2 and Ca4Si2O7F2. The fluorine transformation efficiency was greater with CaSiO3 than CaO, Ca(OH)(2), and CaCO3. Our simulations demonstrated that SiO2 enhanced the conversion of NaF. The fluorine leaching content of the bottom ash was estimated at 13.71 mg,L-1 after the SPL co-incineration with CaSiO3 (Ca:F = 1.2:1). The acid-alkali solutions had no significant effect on the fluorine leaching content of the bottom ash when 3 <= pH <= 12. Fluorine during the SPL co-incineration with CaSiO3 (Ca:F = 1.2:1) at 850 degrees C for 60 min was partitioned into 83.37, 13.90, and 2.72% in the bottom ash, fly ash, and flue gas, respectively. The transformation and detoxification mechanisms of water-soluble fluorine provide new insights into controls on fluorine emission from the SPL incineration. (C) 2020 Elsevier Ltd. All rights reserved.en_US
dc.identifier.doi10.1016/j.envpol.2020.115420
dc.identifier.issn0269-7491
dc.identifier.issn1873-6424
dc.identifier.pmid32829031en_US
dc.identifier.scopus2-s2.0-85089505081en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.envpol.2020.115420
dc.identifier.urihttps://hdl.handle.net/20.500.12491/10301
dc.identifier.volume266en_US
dc.identifier.wosWOS:000572418200035en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.institutionauthorEvrendilek, Fatih
dc.language.isoenen_US
dc.publisherElsevier Sci Ltden_US
dc.relation.ispartofEnvironmental Pollutionen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectSpent Potliningen_US
dc.subjectCalcium Additivesen_US
dc.subjectDetoxificationen_US
dc.subjectTransformation Mechanismsen_US
dc.subjectFluorine Distributionen_US
dc.titleWater-soluble fluorine detoxification mechanisms of spent potlining incineration in response to calcium compoundsen_US
dc.typeArticleen_US

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