We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Application of cavitation in uranium leaching.
- Authors
Ladola, Y. S.; Chowdhury, S.; Roy, S. B.; Pandit, A. B.
- Abstract
Cavitation is mostly considered as an operational problem and not desirable phenomena. The rapid creation and collapse of bubbles can destroy pump and erode other equipment. Recently, cavitation has been explored to enhance mass transfer and also to enhance or alter chemical reactions. Cavitation by definition is the formation, growth and rapid collapse of bubbles. Cavitation can be generated by different techniques. Hydrodynamic (hydraulic) and acoustic cavitations are the results of overcoming the tension existing in a liquid using fluid and sound energy, respectively. Optic, charge particle and steam bubble cavitations are the consequence of local deposition of energy using light, high energy elementary particles beam and steam bubble, respectively. For industrial application, hydrodynamic and acoustic cavi- tations are more important. Steam bubble cavitation is a recent invention and is a highly promising candidate for industrial applications in future. Improvement in recovery and enhancement in rate of recovery during leaching by ultrasound is documented in literature. Uranium leaching from carnotite ore with ultrasound was reported in 1968 by Russia and ultrasonic leaching of urania impregnated in graphite fuel was reported in 1961 by the USA. There is no other published literature available on uranium leaching with cavitation. However, lot more research has been carried out under sonochemistry for process intensification. Different types of cavitation reactor schemes are proposed by researchers for the process intensification. In this paper, we have reviewed uranium leaching with cavitation using different cavitation mechanisms. Effect of cavitation-aided leaching of uranium from MgF2 has been experimentally established. Uranium leaching of Narwapahar ore with acoustic and hydrodynamic cavitation also has been studied.
- Subjects
CAVITATION; URANIUM removal (Groundwater purification); HYDRODYNAMICS; LEACHING; SONOCHEMISTRY
- Publication
Desalination & Water Treatment, 2014, Vol 52, Issue 1-3, p407
- ISSN
1944-3994
- Publication type
Article
- DOI
10.1080/19443994.2013.808792