Immobilization of Sodium‐Bearing High‐Level Radioactive Waste in Synroc Containing (Na0.5Nd0.5)TiO3‐Type Perovskite

Li, Liyu; Luo, Shaohua; Tang, Baolong; Wang, Dexi

doi:10.1111/j.1151-2916.1997.tb02819.x

Cited by 6 publications

(1 citation statement)

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“…The second considered material is a sintered ceramic which is known to be a material with high mechanical and chemical resistance. Sintered ceramics were successfully investigated for radioactive waste immobilization [12,13,14]. A promising sintered ceramic in the system Ba-Mg-Ti-O is shown to have a composition Ba x Mg x Ti 8-x O 16 , with x=1.1 [15].…”

Section: Introductionmentioning

confidence: 99%

Glass ceramics and mineral materials for the immobilization of lead and cadmium

Krausova

Gautron

Karnis

et al. 2016

Ceramics International

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International audienceWaste management is one of the major global environmental issues. Incineration is an efficient treatment since it offers both a reduction of mass and volume and a possibility of energy recovery. One of the problems of incineration is the production of fly ash which is considered as hazardous waste with obligation of final disposal into a specific landfill.The objective of the present study is to investigate glass ceramics and sintered ceramics as new mineral materials for a sustainable immobilization and possible recycling of these incineration wastes. Toxic elements can be incorporated into crystals embedded in a glass matrix which has a function of the second barrier, or in highly resistant crystalline structure in a sintered ceramic. Based upon cations size considerations, this study is focused on Ca-rich or Ba-bearing minerals as possible hosts of lead and cadmium.Promising results have been obtained for CaMgSi2O6 diopside-bearing glass ceramics and sintered Ba1.5Mg1.5Ti6.5O16 hollandite, both in terms of toxic elements incorporation and of chemical resistance

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Section: Introductionmentioning

confidence: 99%