About: Adsorption of cesium on Czech smectite-rich clays

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About: Adsorption of cesium on Czech smectite-rich clays - A comparative study Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Článek pojednává o studiu sorpce cesia na směsi vybraných jílů s pískem, o nichž se uvažuje jako možném zásypovém materiálu úložišť aktivních odpadů. Byl zjištěn nárůst distribučních poměrů (Rd) s rostoucím podílem jílu ve směsi a byly také zjištěny významné rozdíly mezi přirodními a technologicky modifikovanými jíly. (cs) he adsorption of cesium on various smectite-rich clays was studied as a function of the initial concentration of cesium and in the presence of competitive ions (Na+, K+ and Ca2+) using the radiotracer method, examining the effects of the clay structure and comparing the behaviour of bentonites with that of sedimentary clays. The experiments were performed under laboratory conditions, at 22-25 degrees C, in ambient atmosphere and using synthetic average granite groundwater as the liquid phase. Reference smectites (STx-1, SAz-1), illite (IMt-1) and kaolinite (KGa-2), three Czech smectite-rich clays (bentonite from Rokle, sedimentary clays from Skalna and Marsov) and three Spanish bentonites from Cabo de Gata were used as the natural sorbents. The adsorption data were fitted by the Freundlich isotherm. Smectites exhibited the highest values of the adsorption capacity and the highest affinity for cesium within the studied concentration range, 10(-6) to 10(-1) M. he adsorption of cesium on various smectite-rich clays was studied as a function of the initial concentration of cesium and in the presence of competitive ions (Na+, K+ and Ca2+) using the radiotracer method, examining the effects of the clay structure and comparing the behaviour of bentonites with that of sedimentary clays. The experiments were performed under laboratory conditions, at 22-25 degrees C, in ambient atmosphere and using synthetic average granite groundwater as the liquid phase. Reference smectites (STx-1, SAz-1), illite (IMt-1) and kaolinite (KGa-2), three Czech smectite-rich clays (bentonite from Rokle, sedimentary clays from Skalna and Marsov) and three Spanish bentonites from Cabo de Gata were used as the natural sorbents. The adsorption data were fitted by the Freundlich isotherm. Smectites exhibited the highest values of the adsorption capacity and the highest affinity for cesium within the studied concentration range, 10(-6) to 10(-1) M. (en)
Title	Adsorption of cesium on Czech smectite-rich clays - A comparative study Sorpce cesia na smektitem bohaté jíly Českého masivu (ČR) a jejich směsi s pískem (cs) Adsorption of cesium on Czech smectite-rich clays - A comparative study (en)
skos:prefLabel	Adsorption of cesium on Czech smectite-rich clays - A comparative study Sorpce cesia na smektitem bohaté jíly Českého masivu (ČR) a jejich směsi s pískem (cs) Adsorption of cesium on Czech smectite-rich clays - A comparative study (en)
skos:notation	RIV/61389005:_____/05:00031629!RIV06-AV0-61389005
http://linked.open.../vavai/riv/strany	53;66
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA104/02/1464), P(IAA3032401), P(LN00A028), Z(AV0Z10480505), Z(AV0Z40320502)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2006
http://linked.open...aciTvurceVysledku	Řanda, Zdeněk
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav jaderné fyziky AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	511439
http://linked.open...ai/riv/idVysledku	RIV/61389005:_____/05:00031629
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	cesium; adsorption; Freundlich isotherm (en)
http://linked.open.../riv/klicoveSlovo	cesium adsorption Freundlich isotherm
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[CF2B498A85DD]
http://linked.open...i/riv/nazevZdroje	Applied Clay Science
http://linked.open...in/vavai/riv/obor	EF
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	New inorganic compounds and advanced materials Bentonite interactions with the environment - the effect of geological history and actual conditions; use in active waste deep repositories Baseline characterisation of expandable clay structures from Czech deposits and their interactions in solutions
http://linked.open...UplatneniVysledku	2005
http://linked.open...v/svazekPeriodika	30
http://linked.open...iv/tvurceVysledku	Jelínek, E. Řanda, Zdeněk Stulík, K. Vejsada, J. Hradil, D.
http://linked.open...n/vavai/riv/zamer	Jaderná fyzika a příbuzné obory v základním, aplikovaném a interdisciplinárním výzkumu Design, syntéza a charakterizace klastrů, kompozitů, komplexů a dalších sloučenin na bázi anorganických látek; mechanismy a kinetika jejich interakcí
issn	0169-1317
number of pages	14 (xsd:int)
is http://linked.open...avai/riv/vysledek of	Adsorption of cesium on Czech smectite-rich clays - A comparative study

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