Приказ основних података о документу

dc.creatorIsek, Josip
dc.creatorKaludjerović, Lazar
dc.creatorVuković, Nikola S.
dc.creatorMilošević, Maja
dc.creatorVukašinović, Ivana
dc.creatorTomić, Zorica
dc.date.accessioned2020-12-17T22:50:32Z
dc.date.available2020-12-17T22:50:32Z
dc.date.issued2020
dc.identifier.issn0009-8558
dc.identifier.urihttp://aspace.agrif.bg.ac.rs/handle/123456789/5273
dc.description.abstractTwo samples collected from the phosphogypsum deposits of the chemical products industry Elixir Prahovo (Serbia) were subjected to a recrystallization experiment performed over several repeated cycles. In these tests, phosphogypsum was separated into recrystallized (purified) gypsum, insoluble residue and supernatant. Both raw phosphogypsum and recrystallized gypsum were examined using inductively coupled plasma optical emission spectrometry, X-ray diffraction and scanning electron microscopy with energy-dispersive spectrometry. The activity concentrations of (238)u, (235)u, Ra-226, Pb-210,Th- 232 and 40 K were investigated using gamma-ray spectrometry. Based on the activity concentration results, a number of radiometric parameters were calculated for the original and recrystallized phosphogypsum (i.e. radium equivalent activity, y indices for construction materials, a index and external and internal hazard indices). Raw phosphogypsum samples showed greater mean activity concentration levels of U-238 and Ra-226 than the international recommended limits, while the recrystallized gypsum demonstrated notably lower activity concentrations for these two isotopes. The activity concentration of Ra-226 in recrystallized gypsum is similar to 6 times lower than in raw phosphogypsum. Therefore, recrystallized gypsum does not present a radiation hazard when used as a building material, while raw phosphogypsum meets the requirements only for road construction materials.en
dc.publisherMineralogical Soc, Twickenham
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/176010/RS//
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/43007/RS//
dc.rightsrestrictedAccess
dc.sourceClay Minerals
dc.subjectgamma-spectrometryen
dc.subjectbrushiteen
dc.subjectchukhroviteen
dc.subjectphosphogypsumen
dc.subjectradionuclidesen
dc.subjectrecrystallizationen
dc.titleRefinement of waste phosphogypsum from Prahovo, Serbia: characterization and assessment of application in civil engineeringen
dc.typearticle
dc.rights.licenseARR
dc.citation.epage70
dc.citation.issue1
dc.citation.other55(1): 63-70
dc.citation.rankM22
dc.citation.spage63
dc.citation.volume55
dc.identifier.doi10.1180/clm.2020.11
dc.identifier.scopus2-s2.0-85087612409
dc.identifier.wos000544148900008
dc.type.versionpublishedVersion


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Приказ основних података о документу