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dc.contributor.authorLieberman, Roy Nir
dc.contributor.authorGreen, Uri
dc.contributor.authorSegev, Giora
dc.contributor.authorPolat, Mehmet
dc.contributor.authorMastai, Yitzhak
dc.contributor.authorCohen, Haim
dc.date.accessioned2017-05-16T13:58:20Z
dc.date.available2017-05-16T13:58:20Z
dc.date.issued2015
dc.identifier.citationLieberman, R. N., Green, U., Segev, G., Polat, M., Mastai, Y., and Cohen, H. (2015). Coal fly ash as a potential fixation reagent for radioactive wastes. Fuel, 153, 437-444. doi:10.1016/j.fuel.2015.02.111en_US
dc.identifier.issn0016-2361
dc.identifier.urihttp://doi.org/10.1016/j.fuel.2015.02.111
dc.identifier.urihttp://hdl.handle.net/11147/5527
dc.description.abstractIsrael produces ∼1.3 Mt/year of fly ash (FA), a byproduct of its coal-fired power plants. Due to increasing environmental regulations, these imported coals are processed to reduce the sulfur concentration (∼0.6%). These processing methods result in a material that has an enriched alkali/alkali earth component with pozzolanic and basic properties (pH > 10.5). FAs are utilized worldwide, mainly as a cement additive for the construction industry. Recently, it was demonstrated that Class F FA can act as an excellent fixation reagent for acidic wastes from the phosphate or the oil regeneration industries. In the current work the potential utilization of Class F FAs as fixation reagents for low-activity radioactive waste from the nuclear industry was examined. Aqueous solutions containing radionuclide simulants: cesium (Cs+), strontium, (Sr2+), and cerium (Ce3+, Ce4+) were used as case studies with promising results. It is suggested that the primary fixation mechanism involves the aluminate/silicate anions at the FA surface. A novel experimental fixation approach utilizing the formation of carbonates is demonstrated and a new interaction mechanism is suggested based on the electrostatic interactions of the positively charged fine precipitates with the negatively charged FA surface. © 2015 Elsevier Ltd. All rights reserved.en_US
dc.description.sponsorshipIsrael Coal Ash Administrationen_US
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relation.isversionof10.1016/j.fuel.2015.02.111en_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectCarbonateen_US
dc.subjectFixationen_US
dc.subjectFly ashen_US
dc.subjectRadioactiveen_US
dc.subjectWasteen_US
dc.subjectSulfur concentrationsen_US
dc.titleCoal fly ash as a potential fixation reagent for radioactive wastesen_US
dc.typearticleen_US
dc.contributor.authorIDTR20247en_US
dc.contributor.iztechauthorPolat, Mehmet
dc.relation.journalFuelen_US
dc.contributor.departmentİYTE, Mühendislik Fakültesi, Kimya Mühendisliği Bölümüen_US
dc.identifier.volume153en_US
dc.identifier.startpage437en_US
dc.identifier.endpage444en_US
dc.identifier.wosWOS:000352800800051
dc.identifier.scopusSCOPUS:2-s2.0-84938059520
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US


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