8-12 July 2013
Africa/Johannesburg timezone
<a href="http://events.saip.org.za/internalPage.py?pageId=13&confId=32"><font color=#ff0000>SAIP2013 PROCEEDINGS AVAILABLE</font></a>

To study the mobility of the naturally radioactive materials (NORMs) in the sediments as a function of changing environmental conditions

12 Jul 2013, 09:40
20m
Oral Presentation Track B - Nuclear, Particle and Radiation Physics NPRP

Speaker

Mr Nkosinathi Sipho Shongwe (University of Johannesburg)

Level for award<br>&nbsp;(Hons, MSc, <br> &nbsp; PhD)?

MSc

Apply to be<br> considered for a student <br> &nbsp; award (Yes / No)?

Yes

Main supervisor (name and email)<br>and his / her institution

Prof Dr Arnaud Faanhof Northwest University and Applied Nuclear Analytical Sciences
afaanhof@hotmail.com

Abstract content <br> &nbsp; (Max 300 words)

This presentation examines the radiological environmental issues associated with the nuclear fuel cycle as affected by the recent increase of the effects of acid mine drainage (AMD) and considering the role played by solid-to-liquid distribution ratio (Kd). The convective-diffusion transport model is used to discuss the mobility of radionuclides in the sediments. The Kd value predicts the rapidity and reversibility between the dissolved (Cw, Bq.ℓ-1) and the adsorbed (Cs, Bq.kg-1) phases of Uranium and Thorium (and some of their progeny). The identification and quantification of radioactive species using radiometric and non radiometric techniques was done. Low background Gamma-Spectrometry, ICP-MS (Inductively Coupled Plasma-Mass Spectrometry), NAA (Neutron Activation Analysis) and LSC (Liquid Scintillation Counting) techniques were used. The distribution of the radionuclides in the solid and liquid phases obtained in the simulated AMD (acid mine drainage)leaching experiments was evaluated.

Would you like to <br> submit a short paper <br> for the Conference <br> Proceedings (Yes / No)?

Yes

Primary author

Mr Nkosinathi Sipho Shongwe (University of Johannesburg)

Co-author

Prof. Arnaud Faanhof (Applied Nuclear Analytical Sciences)

Presentation Materials

Peer reviewing

Paper