Studies on Cesium Uptake by Phenolic Resins

Samanta, Soumen; Ramaswamy, M.; Misra, Β. M.

doi:10.1080/01496399208018877

Cited by 107 publications

(62 citation statements)

References 11 publications

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“…The performance of the RF resin was highly variable because the resin was subject to oxidation during storage and pretreatment. Other investigators used Resorcinol-Formaldehyde resins for cesium removal from nuclear waste solutions [13,14]. Studies to remove cesium from waste supernatants with commercially available Duolite ® CS-100 carboxylic acid were reported [15,16].…”

Section: Wsrc-ms-2004-00250mentioning

confidence: 99%

Resorcinol - formaldehyde adsorption of cesium from Hanford waste solutions, Part I. Batch equilibrium study

Hassan

Adu-Wusu

Marra

2004

Journal of Radioanalytical and Nuclear Chemistry

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Batch equilibrium measurements were conducted at 25 ± 2 o C with a granular Cs were used. Initial concentrations of non-radioactive cesium in the waste sample were varied to generate an equilibrium isotherm for cesium. The majority of the tests were conducted at 25 ± 2 o C using a liquid to solid phase ratio of ~100 mL/g and a contact time of 72 hours.Two additional tests were conducted using a liquid to solid phase ratio of 10 and a contact time of 120 hours.The measured distribution coefficient (K d ) for radioactive cesium (

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Section: Wsrc-ms-2004-00250mentioning

confidence: 99%

Resorcinol - formaldehyde adsorption of cesium from Hanford waste solutions, Part I. Batch equilibrium study

Hassan

Adu-Wusu

Marra

2004

Journal of Radioanalytical and Nuclear Chemistry

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“…Efforts to develop new organic ion exchangers for their specific industrial applications are continuing [2,3] and various aspects of ion exchange technologies have been continuously studied to improve the efficiency and economy of their application in various technological applications [4][5][6][7]. However, for proper selection of ion exchange resin, it is essential to have adequate knowledge regarding their physical and chemical properties, which forms the complementary part of resin characterization study.…”

Section: Introductionmentioning

confidence: 99%

Radio Analytical Nondestructive Technique in Performance Evaluation of Organic Base Ion Exchange Resins Purolite NRW-6000 and Duolite A-378

Singare¹

2013

ILCPA

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Nondestructive radioanalytical technique using short lived isotopes 131 I and 82 Br was used as tracers to study the kinetics of iodide and bromide ion-isotopic exchange reactions. The kinetic data so obtained was used to evaluate the performance of organic base anion exchange resins Purolite NRW-6000 and Duolite A-378. It was observed that for iodide ion-isotopic exchange reaction performed at 40.0 °C using 1.000 g of ion exchange resins and 0.003 mol/L labeled iodide ion solution, the values of specific reaction rate (min -1 ), amount of iodide ion exchanged (mmol), initial rate of iodide ion exchange (mmol/min) and log K d were calculated as 0.332, 0.582, 0.193 and 16.2 respectively for Purolite NRW-6000 resin, which was higher than the respective values of 0.210, 0.421, 0.088 and 14.7 as that obtained for Duolite A-378 resins. Also at a constant temperature of 40.0 °C, as the concentration of labeled iodide ion solution increases from 0.001 mol/L to 0.004 mol/L, the percentage of iodide ions exchanged increases from 74.68 % to 79.48 % using Purolite NRW-6000 resins and from 52.30 % to 58.90 % using Duolite A-378 resins. The overall results indicate superior performance of Purolite NRW-6000 resins over Duolite A-378 resins under identical operational parameters. It is expected here that the present technique can be extended further for characterization of different ion exchange resins which will further help in the selection of those reins for the specific industrial application.

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“…In number of cases, for specific physical and chemical reasons, organic resins cannot be replaced by inorganic ion exchangers and organic ion exchange resins continued to be used globally. Organic based ion exchange resins play a very vital role in nuclear industries for removal of radionuclide and also in chemical decontamination or cleaning processes [2][3][4][5][6]. The organic ion exchange resins are very effective at transferring the radioactive content of a large volume of liquid into a small volume of solid and have proved to be reliable and effective for the control of both the chemistry and radiochemistry of water coolant systems at nuclear power plants and also for processing some liquid radioactive waste.…”

Section: Introductionmentioning

confidence: 99%

Study on Halide Ions Selectivity of Nuclear Grade Anion Exchange Resin Auchlite ARA-9366

Singare¹,

Patange²

2014

ILCPA

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The selectivity behaviour of nuclear grade anion exchange resin Auchlite ARA-9366 in chloride form towards iodide and bromide ions in the solution was studied. The trend in selectivity of the resin was predicted on the basis of thermodynamics of Clˉ/Iˉ and Clˉ/Brˉ uni-univalent ion exchange reactions. It was observed that the equilibrium constants K values for Clˉ/Iˉ ion exchange reaction were higher than that calculated for Clˉ/Brˉ exchange under identical experimental conditions. Also the enthalpy values for the two uni-univalent ion exchange reactions were calculated as -47.87 and -36.14 kJ/mol respectively. The high K and low enthalpy values obtained for Clˉ/Iˉ ion exchange reaction as compared to that obtained during Clˉ/Brˉ exchange supports higher selectivity of the resin towards iodide ions as compared to that towards bromide ions, when both the ions are present in the same solution.

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Studies on Cesium Uptake by Phenolic Resins

Cited by 107 publications

References 11 publications

Resorcinol - formaldehyde adsorption of cesium from Hanford waste solutions, Part I. Batch equilibrium study

Resorcinol - formaldehyde adsorption of cesium from Hanford waste solutions, Part I. Batch equilibrium study

Radio Analytical Nondestructive Technique in Performance Evaluation of Organic Base Ion Exchange Resins Purolite NRW-6000 and Duolite A-378

Study on Halide Ions Selectivity of Nuclear Grade Anion Exchange Resin Auchlite ARA-9366

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