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Adsorption of cesium on Czech smectite-rich clays - A comparative study
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SYSNO ASEP 0030018 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Ostatní články Název Adsorption of cesium on Czech smectite-rich clays - A comparative study Překlad názvu Sorpce Cs na vybraných smektitem bohatých jílech Tvůrce(i) Vejsada, J. (CZ)
Hradil, David (UACH-T) RID, SAI
Řanda, Zdeněk (UJF-V) RID
Jelínek, E. (CZ)
Štulík, K. (CZ)Zdroj.dok. Applied Clay Science. - : Elsevier - ISSN 0169-1317
Roč. 30, č. 1 (2005), s. 53-66Poč.str. 14 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova cesium ; adsorption ; batch method Vědní obor RIV CA - Anorganická chemie CEP GA104/02/1464 GA ČR - Grantová agentura ČR IAA3032401 GA AV ČR - Akademie věd CEZ AV0Z40320502 - UACH-T (2005-2011) Anotace The 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. Pracoviště Ústav anorganické chemie Kontakt Jana Kroneislová, krone@iic.cas.cz, Tel.: 311 236 931 Rok sběru 2006
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