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Issue 44
CHEMISTRY AND BIOLOGY
UDK: 544.4/.725
KINETICS OF ADSORPTION OF CESIUM IONS ON ACTIVATE COALS
GAFUROV Malik Magomedovich,
SVESHNIKOVA Dzhannet Alexeevna,
RAMAZANOV Arsen Shamsudinovich,
KYNZHUEVA Kamila Guseynovna,
ATAEV David Ruslanovich
The kinetics of cesium sorption on different activated carbons has been studied. The experimental results have been analyzed by using two kinetic models: the pseudo-first and the pseudo-second order rate law. Studied systems have been found to follow both the pseudo-first and the pseudo-second order models with some preference to the pseudo-second order mechanism. The Langmuir and the Freundlich isotherms have been taken to analyze Cs+ ions sorption dependence on their concentration in solution. It was found that cesium adsorption on activated carbons КМ-2, ОКМ-2, FКМ-2 is subordinate to the Freundlich isotherm while Cs+ sorption on sulfocoal is subject to be described by both the Freundlich and the Langmuir isotherms.
Keywords: активированные угли; адсорбция; ионы цезия; кинетика; изотермы; adsorption; cesium ions; kinetics; isotherms.
Pages: 18 - 21
Date: 20.10.2011
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