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The Scientific World Journal
Volume 2014, Article ID 768604, 15 pages
Review Article

Radiotracer Technology in Mixing Processes for Industrial Applications

1Malaysian Nuclear Agency, Bangi, Kajang, 43000 Selangor, Malaysia
2Department of Chemical and Process Engineering, Universiti Kebangsaan Malaysia (UKM), Bangi, 43600 Selangor, Malaysia

Received 7 November 2013; Accepted 17 December 2013; Published 30 January 2014

Academic Editors: C. Costa, B. Dou, and A. M. Efstathiou

Copyright © 2014 N. Othman and S. K. Kamarudin. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Many problems associated with the mixing process remain unsolved and result in poor mixing performance. The residence time distribution (RTD) and the mixing time are the most important parameters that determine the homogenisation that is achieved in the mixing vessel and are discussed in detail in this paper. In addition, this paper reviews the current problems associated with conventional tracers, mathematical models, and computational fluid dynamics simulations involved in radiotracer experiments and hybrid of radiotracer.