Journal ArticleDOI
Immobilization of cesium and strontium radionuclides in zeolite-cement blends
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TLDR
The obtained results showed that the presence of zeolite A in the final cemented wastes improve the mechanical characteristics of the solidified cement matrix (mechanical strength and setting times) towards the safety requirements and reduce considerably the radionuclides leach rates.About:
This article is published in Journal of Hazardous Materials.The article was published on 2006-08-21. It has received 144 citations till now. The article focuses on the topics: Portland cement & Cement.read more
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Evaluation of zeolite A for the sorptive removal of Cs+ and Sr2+ ions from aqueous solutions using batch and fixed bed column operations
TL;DR: Zeolite A was chemically synthesized and evaluated, as inorganic ion exchange material, for the removal of cesium and strontium ions from aqueous solutions in both batch and fixed bed column operations indicating that the overall system kinetics was dominated by external mass transfer in the initial part of the sorption process in the column.
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Formations of calcium carbonate minerals by bacteria and its multiple applications.
TL;DR: This report not only highlights the major strengths of MICP, but also discusses the limitations to application of this technology on a commercial scale.
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Treatment of radioactive liquid waste by sorption on natural zeolite in Turkey.
TL;DR: Comparison of the ion-exchange properties of zeolite minerals from different formations shows that Gordes clinoptilolite was the most suitable natural sorbent for radionuclides under dynamic treatment conditions and as an additive for chemical precipitation process.
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Effect of adsorbents and chemical treatments on the removal of strontium from aqueous solutions
TL;DR: Almond green hull, eggplant hull, and moss were initially treated and used as adsorbents for the adsorption of strontium ion from aqueous solutions and it was confirmed that these low cost agriculture byproducts could be used as efficient adsorbent for the removal ofstrontium from wastewater streams.
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Modeling the long-term leaching behavior of 137Cs, 60Co, and 152,154Eu radionuclides from cement-clay matrices
TL;DR: Simplified analytical models have been derived to predict the cumulative leach fraction (CLF) of radionuclides over the studied experimental period and could be used as a screening tool to assess the performance of the waste matrix under repository conditions.
References
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Modeling batch kinetics and thermodynamics of zinc and cadmium ions removal from waste solutions using synthetic zeolite A.
TL;DR: The results indicated that synthetic zeolite A can be used as an efficient ion exchange material for the removal of zinc and cadmium ions from industrial and radioactive wastewaters.
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Progress in the immobilization of radioactive wastes in cement
TL;DR: In this paper, progress in developing a science base for the immobilisation of radioactive wastes in cements is reviewed both physical and chemical factors contribute to the immobilization, with chemical factors becoming more important at longer ages.
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Diffusion and Sorption of Cesium, Strontium, and Iodine in Water-Saturated Cement
Alan Atkinson,Allan K. Nickerson +1 more
TL;DR: In this article, four different experimental techniques have been used to study these processes for Cs+, Sr2+, and I− ions in Sulphate Resisting Portland Cement paste saturated with water.
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Cation exchange applications of synthetic tobermorite for the immobilization and solidification of cesium and strontium in cement matrix
TL;DR: In this article, the synthesis, characterization, cesium uptake capacity and leaching behaviour of synthetic alumina-substituted calcium silicate hydroxy hydrate, which are close to that obtained for the natural mineral, 11 A tobermorite, were discussed.