Effects of steel overpack on aqueous alteration of vitrified high-level radioactive waste

Iwata, Hajime ; Mitsui, Seiichiro ; Sekine, Nobuyuki*

In order to measure Fe-silicates precipitated under geological disposal conditions, a static leaching test has been conducted of simulated vitrified waste in 0.01 M FeCl $_{2}$ solution with a surface area to volume ratio = 10 m $^{-1}$ at 90 $^{circ}$ C under a N $_{2(g)}$ atmosphere. Obtained results indicate that Fe bearing minerals change from green rust to Fe-rich serpentine over time. Such mineral transitions are important as they may have an effect on the alteration behavior of glasses used for geological disposal of HLW.

Language	:	English
Journal	:
Volume	:
Number	:
Pages	:
Publication Year/Month	:
Meeting title	:	GLASS MEETING 2020
Held date	:	2020/12
Location (city)	:	Tokyo (online)
Location (country)	:	Japan
Patent information	:
PDF	:
Paper URL	:
DOI for research data	:	Link to research data related to this paper/report.
Keywords	:	高レベル放射性廃棄物; 地層処分; 鉄ケイ酸塩
Research Facility	:	ENTRY(地層処分基盤研究施設)
Press Release	:
JAEA R&D Navigator	:
Cooperating Institute	:	資源エネルギー庁

Accesses	:	- Accesses
Web of Science® Times Cited Count	:	Times Cited Count： If you would like to get the latest times cited, please access the Web of Science®. http://www.webofknowledge.com/wos
InCites™	:
Altmetrics	:

Registration No. : BB20200626
JAEA Abstracts No. :
Paper Submission No. :

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.