کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7919447 1511104 2017 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Sorption Behavior of Cesium on Calcium Silicate Hydrate under High Carbonate Ion Concentration Conditions
ترجمه فارسی عنوان
رفتار جذب سزیم روی هیدرات سیلیکات کلسیم تحت شرایط کنسانتره یون کربنات بالا
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
چکیده انگلیسی
To assess radionuclide migration, Ca/Si ratio of calcium silicate hydrate (CSH) gel formed as a secondary mineral is a key factor because CSH gels effectively adsorb radionuclides, in particular cationic nuclides. However, the Ca/Si ratio of the CSH gel is changed by the leaching of Ca ions and the formation conditions. In this study, the influence of carbonate ions on the sorption of Cs ions on the CSH gel was preliminarily examined. For the sorption experiments, the concentrations of carbonate ions (NaHCO3) were adjusted to 0 mM-1000 mM at the synthesis of the CSH gel or after a 7-day curing period. As a result, the sorption of Cs ions on the CSH gel became larger with the increase in the concentration of carbonate ions. Such sorption behavior was also observed when carbonate ions were added after curing the CSH gel. These results suggest that CSH gel formed as a secondary mineral might be able to contribute to the retardation of radionuclide migration by interacting with carbonate ions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy Procedia - Volume 131, December 2017, Pages 203-207
نویسندگان
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