Analysis of flotation of unburned carbon from bottom ashes

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dc.authoridSahbaz, Oktay/0000-0003-0945-9048
dc.contributor.authorSahbaz, Oktay
dc.contributor.authorCinar, Mustafa
dc.contributor.authorKelebek, Sadan
dc.date.accessioned2025-01-27T20:22:27Z
dc.date.available2025-01-27T20:22:27Z
dc.date.issued2016
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractBottom ash from power plants contains unburned carbon (UC) as a waste, which is a potential contaminant for the environment unless recycled as a source of energy. In the present study, separation of the UC (3.1%) from the bottom ash of a power plant has been studied. The overall grade of combustible matter for the concentrates ranged from 20.6% to 28.8 while the recovery levels varied from 45.7 % to 84.0%. A statistical analysis of the combustible recoveries according to a 3-variable 2-level (2(3)) factorial experimental design, examined the influence of dosages collector (kerosene) and frother (AF65) and also impeller speed. The main effects of all three factors on the recovery are positive. The most important factor is collector dosage, while the frother has a secondary significance. The effect of impeller (conditioning) speed is also statistically significant. Two of the 2-way interaction effects are significant. Recovery of combustible matter increases with an increase in the dosages of kerosene and AF65. The main and interaction effects involving kerosene consistently point out the selectivity of the flotation process for carbonaceous particles, which have been discussed in relation to dispersion and attachment of collector droplets to the particles, interfacial area and probable collecting properties of the frother used.
dc.description.sponsorshipDumlupinar University (DPU)
dc.description.sponsorshipFunding of this research work provided internally by the Dumlupinar University (DPU) is greatly appreciated. The authors thank Tuncbilek Power Plant management for the bottom ashes sample used in this study and Mr. A. Cantas for his experi help.
dc.identifier.endpage101
dc.identifier.issn1335-1788
dc.identifier.issue2
dc.identifier.scopus2-s2.0-84979020968
dc.identifier.scopusqualityQ2
dc.identifier.startpage93
dc.identifier.urihttps://hdl.handle.net/20.500.12428/21893
dc.identifier.volume21
dc.identifier.wosWOS:000386528800002
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherBerg Fac Technical Univ Kosice
dc.relation.ispartofActa Montanistica Slovaca
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectBottom ash
dc.subjectflotation
dc.subjectunburned carbon
dc.subjectfactorial design
dc.titleAnalysis of flotation of unburned carbon from bottom ashes
dc.typeArticle

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