NDLI: Selenium uptake onto natural pyrite

Content Provider	Springer Nature Link
Author	Curti, Enzo Aimoz, Laure Kitamura, Akira
Copyright Year	2012
Abstract	$^{79}$Se is a major dose-determining redox-sensitive nuclide in safety analysis of radioactive waste disposal sites. In aqueous solutions, selenium forms soluble anionic species (Se$^{IV}$O$_{3}$ $^{2−}$ and Se$^{VI}$O$_{4}$ $^{2−}$) that hardly sorb on negatively charged surfaces of common host-rock minerals. However, Se is known to have a strong affinity with sulphides and interacts with pyrite, a common minor mineral of argillaceous rocks being considered as host formations for radioactive waste repositories. In this study, we present micro- and bulk X-ray spectroscopy data (μ-XRF, μ-XANES, and EXAFS) showing that, under nearly anoxic conditions, dissolved SeO$_{3}$ $^{2−}$ and SeO$_{4}$ $^{2−}$ sorb directly onto the pyrite surface and are subsequently reduced to Se$^{0}$ with increasing ageing time (up to 8 months). These results suggest that the mobility of $^{79}$Se$^{IV}$ released from radioactive waste could greatly decrease through uptake on the pyrite surface followed by transformation into a sparingly soluble reduced form.
Starting Page	1655
Ending Page	1665
Page Count	11
File Format	PDF
ISSN	02365731
Journal	Journal of Radioanalytical and Nuclear Chemistry
Volume Number	295
Issue Number	3
e-ISSN	15882780
Language	English
Publisher	Springer Netherlands
Publisher Date	2012-07-25
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	X-ray spectroscopy Redox Selenium Pyrite Radioactive waste Micro-XANES Micro-XRF Sorption Nuclear Chemistry Physical Chemistry Nuclear Physics, Heavy Ions, Hadrons Diagnostic Radiology Inorganic Chemistry
Content Type	Text
Resource Type	Article
Subject	Spectroscopy Pollution Health, Toxicology and Mutagenesis Radiology, Nuclear Medicine and Imaging Analytical Chemistry Public Health, Environmental and Occupational Health Nuclear Energy and Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Uranium sorption characteristics onto synthesized pyrite

Sorption of selenite onto chlorite considering mineral dissolution

Removal of Thoron and Arsenazo III from radioactive liquid waste by sorption onto cetyltrimethylammonium-functionalized polyacrylonitrile

The sorption mechanism of Selenium-75 on Amberlite MB9L

Sorption behavior of Am$^{3+}$ on suspended pyrite

Sorption of strontium on Slovak bentonites

Sorption of radioactive cobalt in natural Mexican clinoptilolite

Iodide interaction with natural pyrite

The sorption behavior of Cs $^{+}$ ion on clay minerals and zeolite in radioactive waste management: sorption kinetics and thermodynamics

Selenium uptake onto natural pyrite

Similar Documents

Uranium sorption characteristics onto synthesized pyrite

Sorption of selenite onto chlorite considering mineral dissolution

Removal of Thoron and Arsenazo III from radioactive liquid waste by sorption onto cetyltrimethylammonium-functionalized polyacrylonitrile

The sorption mechanism of Selenium-75 on Amberlite MB9L

Sorption behavior of Am$^{3+}$ on suspended pyrite

Sorption of strontium on Slovak bentonites

Sorption of radioactive cobalt in natural Mexican clinoptilolite

Iodide interaction with natural pyrite

The sorption behavior of Cs $^{+}$ ion on clay minerals and zeolite in radioactive waste management: sorption kinetics and thermodynamics

Selenium uptake onto natural pyrite