Mass transport modeling of Cs (I) through hollowfiber supported liquid membrane containing calix - [4] - bis(2,3 - naptho) - crown - 6 as the mobile carrier / P. Kandwal in Chemical engineering journal, Vol. 174 N° 1 (Octobre 2011)  

Public ISBD [article]  inChemical engineering journal > Vol. 174 N° 1 (Octobre 2011) . - pp.110-116 Titre : Mass transport modeling of Cs (I) through hollowfiber supported liquid membrane containing calix - [4] - bis(2,3 - naptho) - crown - 6 as the mobile carrier Type de document : texte imprimé Auteurs : P. Kandwal, Auteur ; S. Dixit, Auteur ; S. Mukhopadhyay, Auteur Année de publication : 2012 Article en page(s) : pp.110-116 Note générale : Génie chimique Langues : Anglais (eng) Mots-clés : Hollow fiber Liquid membrane Cesium Calix-crown Waste management Résumé : A mathematical model is developed for the transport of cesium through hollowfibersupportedliquidmembrane (HFSLM) containingcalix-[4]-bis(2,3-naptho)-crown-6 (CNC) as the carrier extractant in NPOE and n-dodecane mixture as diluent. The model is developed on the principle of facilitated diffusional transport mechanism with laminar flow inside the tubular region in the fiber with all the flow rate conditions. It predicts the rate of transport of cesium from feed solution under various experimental conditions and system compositions. Simultaneously, experiments were performed taking varying concentrations of cesium nitrate in 3 M HNO3 as the feed solution and distilled water as the strip and the cesium transport rates were measured. Both the results were plotted and a good level of agreement is seen between predicted and experimental data points. Similar studies were carried out as a function of carrier extractant concentration and varying feed and strip flow rates. Reasonable agreement between the experimental and predicted data suggested validity of the developed model. ISSN : 1385-8947 En ligne : http://www.sciencedirect.com/science/article/pii/S1385894711010151 [article] Mass transport modeling of Cs (I) through hollowfiber supported liquid membrane containing calix - [4] - bis(2,3 - naptho) - crown - 6 as the mobile carrier [texte imprimé] / P. Kandwal, Auteur ; S. Dixit, Auteur ; S. Mukhopadhyay, Auteur . - 2012 . - pp.110-116. Génie chimique Langues : Anglais (eng) in Chemical engineering journal > Vol. 174 N° 1 (Octobre 2011) . - pp.110-116 Mots-clés : Hollow fiber Liquid membrane Cesium Calix-crown Waste management Résumé : A mathematical model is developed for the transport of cesium through hollowfibersupportedliquidmembrane (HFSLM) containingcalix-[4]-bis(2,3-naptho)-crown-6 (CNC) as the carrier extractant in NPOE and n-dodecane mixture as diluent. The model is developed on the principle of facilitated diffusional transport mechanism with laminar flow inside the tubular region in the fiber with all the flow rate conditions. It predicts the rate of transport of cesium from feed solution under various experimental conditions and system compositions. Simultaneously, experiments were performed taking varying concentrations of cesium nitrate in 3 M HNO3 as the feed solution and distilled water as the strip and the cesium transport rates were measured. Both the results were plotted and a good level of agreement is seen between predicted and experimental data points. Similar studies were carried out as a function of carrier extractant concentration and varying feed and strip flow rates. Reasonable agreement between the experimental and predicted data suggested validity of the developed model. ISSN : 1385-8947 En ligne : http://www.sciencedirect.com/science/article/pii/S1385894711010151

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