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Description
| - Recently, a new mica phase Cs-tetra-ferri-annite has been synthesized and studied. This phase has been investigated because its high structural stability and assumed associated low leachability for Cs suggest that it may be a suitable waste form for immobilization of Cs. Further, synthesis, under hydrothermal conditions, is possible under conditions typical of an industrial-scale immobilization plant. Consequently, cesium-tetra-ferri-annite can be considered as a waste form for the fixation of Cs from solid radioactive waste. In this study, Cs immobilization in Cs-tetra-ferri-annite and CsAlSiO4, as well as sorption onto montmorillonite and zeolite 13X, have been studied. Experiments were carried out to determine the influence of pH, temperature, time and leaching technique on the extent of release of Cs from these solids. These leaching studies have confirmed the limited leachability of Cs-tetra-ferri-annite, which was found to be more stable than CsAlSiO4 by a factor of 3.7 at ambient temperature a
- Recently, a new mica phase Cs-tetra-ferri-annite has been synthesized and studied. This phase has been investigated because its high structural stability and assumed associated low leachability for Cs suggest that it may be a suitable waste form for immobilization of Cs. Further, synthesis, under hydrothermal conditions, is possible under conditions typical of an industrial-scale immobilization plant. Consequently, cesium-tetra-ferri-annite can be considered as a waste form for the fixation of Cs from solid radioactive waste. In this study, Cs immobilization in Cs-tetra-ferri-annite and CsAlSiO4, as well as sorption onto montmorillonite and zeolite 13X, have been studied. Experiments were carried out to determine the influence of pH, temperature, time and leaching technique on the extent of release of Cs from these solids. These leaching studies have confirmed the limited leachability of Cs-tetra-ferri-annite, which was found to be more stable than CsAlSiO4 by a factor of 3.7 at ambient temperature a (en)
- Nedávno byl připraven a studován Cs-tetra-ferri-annit. Podle jeho struktury lze předpokládat, že tato látka bude mít velmi malou vyluhovatelnost Cs, tj. může být dobře využitelnou formou k ukládání Cs v odpadech. V této studii imobilizace Cs v Cs-tetra-ferri-annitu a CsAlSiO4, stejně jako sorpce Cs do montmorillonitu a zeolitu 13X byla studována. Experimenty byly provedeny za účelem zjištění vlivu pH, teploty, času a typu vyluhování na množství vylouženého cesia.Výsledky potvrdily, že Cs-tetra-ferri-annit je 3,7 krát stabilnější než CaAlSiO4 při normální teplotě a neutrálním pH. Obě tyto formy byly efektivnější v zachycování Cs než Cs-montmorillonit a Cs-zeolit 13X. Pro všechny studované fáze vyluhovatelnost Cs vzrůstala se změnou pH (3 nebo 11), stejně jako s časem vyluhování. U CsAlSiO4 vyluhovatelnost Cs je nejsilněji ovlivňována vzrůstající teplotou a je až 6 krát větší než u jiných fází. Cesium se uvolňuje více než majoritní prvky Si a Al. Prvky vázané v tetraedrických pozicích CsAlSiO4, Cs-mo (cs)
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Title
| - Water leaching of cesium from selected cesium mineral analogues.
- Water leaching of cesium from selected cesium mineral analogues. (en)
- Vyluhování cesia z vybranných Cs-minerálů (cs)
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skos:prefLabel
| - Water leaching of cesium from selected cesium mineral analogues.
- Water leaching of cesium from selected cesium mineral analogues. (en)
- Vyluhování cesia z vybranných Cs-minerálů (cs)
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skos:notation
| - RIV/61989100:27360/06:00014213!RIV07-GA0-27360___
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http://linked.open.../vavai/riv/strany
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
| - P(GA104/02/1464), Z(MSM6198910016)
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http://linked.open...iv/cisloPeriodika
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/61989100:27360/06:00014213
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...vavai/riv/projekt
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http://linked.open...UplatneniVysledku
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http://linked.open...v/svazekPeriodika
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http://linked.open...iv/tvurceVysledku
| - Klika, Zdeněk
- Drábek, Milan
- Weiss, Zdeněk
- Mellini, Marcello
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http://linked.open...n/vavai/riv/zamer
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issn
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number of pages
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http://localhost/t...ganizacniJednotka
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