A Rothmund-Kornfeld model of Cs+-K+-Na+ exchange on spherical resorcinol-formaldehyde (sRF) resin in Hanford nuclear waste

被引:5
|
作者
Reynolds, Jacob G. [1 ]
Tardiff, Benjamin M. [2 ]
机构
[1] Washington River Protect Solut LLC, POB 850, Richland, WA 99354 USA
[2] AEM Consulting LLC, Richland, WA 99354 USA
关键词
Ion exchange; Cation exchange; Resorcinol-formaldehyde; Rothumnd-Kornfeld; Hanford; Cesium; ION-EXCHANGE; CATION-EXCHANGE; CESIUM REMOVAL; TERNARY EXCHANGE; SELECTIVITY; BINARY; EQUILIBRIUM; ADSORPTION; SOILS;
D O I
10.1007/s10967-015-4660-x
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
The Hanford site, near Richland, WA, in the U.S.A., has more than 55 million gallons of high-level nuclear waste, much of which is high-ionic strength sodium and potassium containing electrolyte solutions. Spherical-resorcinol formaldehyde ion exchange resin is being developed to remove radioactive cesium from the waste. This study develops a model in the Rothmund-Kornfeld framework to predict Cs+-K+-Na+ selectivity on the resin. The model is found to fit the available data well, with an R (2) of greater than 0.985. The Rothmund-Kornfeld model is thus recommended for use in modelling ternary ion-exchange in Hanford waste.
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页码:813 / 818
页数:6
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