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Title: Thorium: Issues and prospects in Malaysia

Abstract

In Malaysia, thorium exists in minerals and rare earth elements production residue. The average range of thorium content in Malaysian monazite and xenotime minerals was found about 70,000 and 15,000 ppm respectively. About 2,636 tonnes of Malaysian monazite was produced for a period of 5 years (2006-2010) and based on the above data, it can be estimated that Malaysian monazite contains about 184.5 tonnes of thorium. Although thorium can become a major radiological problem to our environment, but with the significant deposit of thorium in Malaysian monazite, it has a prospect as a future alternative fuel in nuclear technology. This paper will discuss the thorium issues in Malaysia especially its long term radiological risks to public health and environment at storage and disposal stages, the prospect of exploring and producing high purity thorium from our rare earth elements minerals for future thorium based reactor. This paper also highlights the holistic approach in thorium recovery from Malaysian rare earth element production residue to reduce its radioactivity and extraction of thorium and rare earth elements from the minerals with minimum radiological impact to health and environment.

Authors:
; ;
Publication Date:
OSTI Identifier:
22391633
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1659; Journal Issue: 1; Conference: NuSTEC2014: Nuclear Science, Technology, and Engineering Conference 2014, Skudai, Johor (Malaysia), 11-13 Nov 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; ALTERNATIVE FUELS; EXTRACTION; MALAYSIA; MONAZITES; NATURAL RADIOACTIVITY; NUCLEAR FUELS; RARE EARTHS; RESIDUES; THORIUM; THORIUM 232; THORIUM CYCLE; XENOTIME

Citation Formats

AL-Areqi, Wadeeah M., Majid, Amran Ab., Sarmani, Sukiman, and Bahri, Che Nor Aniza Che Zainul. Thorium: Issues and prospects in Malaysia. United States: N. p., 2015. Web. doi:10.1063/1.4916865.
AL-Areqi, Wadeeah M., Majid, Amran Ab., Sarmani, Sukiman, & Bahri, Che Nor Aniza Che Zainul. Thorium: Issues and prospects in Malaysia. United States. https://doi.org/10.1063/1.4916865
AL-Areqi, Wadeeah M., Majid, Amran Ab., Sarmani, Sukiman, and Bahri, Che Nor Aniza Che Zainul. 2015. "Thorium: Issues and prospects in Malaysia". United States. https://doi.org/10.1063/1.4916865.
@article{osti_22391633,
title = {Thorium: Issues and prospects in Malaysia},
author = {AL-Areqi, Wadeeah M. and Majid, Amran Ab. and Sarmani, Sukiman and Bahri, Che Nor Aniza Che Zainul},
abstractNote = {In Malaysia, thorium exists in minerals and rare earth elements production residue. The average range of thorium content in Malaysian monazite and xenotime minerals was found about 70,000 and 15,000 ppm respectively. About 2,636 tonnes of Malaysian monazite was produced for a period of 5 years (2006-2010) and based on the above data, it can be estimated that Malaysian monazite contains about 184.5 tonnes of thorium. Although thorium can become a major radiological problem to our environment, but with the significant deposit of thorium in Malaysian monazite, it has a prospect as a future alternative fuel in nuclear technology. This paper will discuss the thorium issues in Malaysia especially its long term radiological risks to public health and environment at storage and disposal stages, the prospect of exploring and producing high purity thorium from our rare earth elements minerals for future thorium based reactor. This paper also highlights the holistic approach in thorium recovery from Malaysian rare earth element production residue to reduce its radioactivity and extraction of thorium and rare earth elements from the minerals with minimum radiological impact to health and environment.},
doi = {10.1063/1.4916865},
url = {https://www.osti.gov/biblio/22391633}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1659,
place = {United States},
year = {Wed Apr 29 00:00:00 EDT 2015},
month = {Wed Apr 29 00:00:00 EDT 2015}
}