NDLI: Colloid-facilitated transport of uranium by groundwater at the U

Content Provider	Springer Nature Link
Author	Malkovsky, V. I. Petrov, V. A. Dikov, Yu. P. Alexandrova, E. V. Bychkova, Ya. V. Shulik, L. S.
Copyright Year	2014
Abstract	The main objective of the study is field-scale analysis of colloid-facilitated transport of uranium from an underground source to the biosphere as applied to safety assessment of underground repository of spent nuclear fuel (SNF). The uranium deposit (Antei) in eastern Transbaikalia is considered as a natural analog of an underground repository of SNF. Transport of colloid-borne uranium by groundwater from the ore zone to the earth surface is examined. Groundwater at the uranium deposit site was sampled both in the ore zone (at the depth of approximately 750 m) and from the subsurface water. Extraction of the uranium-bearing colloid from the water samples was carried out by subsequent filtration through membranes with decreasing pore size. Uranium concentrations in the filtrate were measured by the methods of light-emitting diode-induced luminescence and inductively coupled plasma mass spectrometry. Chemical composition of the surface of the uranium-bearing colloid particles was determined by the methods of X-ray photoelectron spectroscopy with ionic etching and transmission electron microscopy. It is revealed that uranium-bearing colloid in the ore zone and at the earth surface consists of particles of different types (intrinsic colloid and pseudocolloid).
Starting Page	6145
Ending Page	6152
Page Count	8
File Format	PDF
ISSN	18666280
Journal	Environmental Earth Sciences
Volume Number	73
Issue Number	10
e-ISSN	18666299
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2014-11-11
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Uranium Migration Ore deposit Colloid Groundwater Geology Hydrology/Water Resources Geochemistry Environmental Science and Engineering Terrestrial Pollution Biogeosciences
Content Type	Text
Resource Type	Article
Subject	Global and Planetary Change Earth-Surface Processes Soil Science Environmental Chemistry Pollution Geology Water Science and Technology

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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
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