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Journal of the Southern African Institute of Mining and Metallurgy

versão On-line ISSN 2411-9717
versão impressa ISSN 2225-6253

J. S. Afr. Inst. Min. Metall. vol.108 no.10 Johannesburg Out. 2008

 

JOURNAL PAPER

 

Three-dimensional measurement and simulation of the dewatering behavior of flocs and sediments using X-ray microtomography

 

 

X. JiaI; R.A. WilliamsI; C. SelomulyaII

IInstitute of Particle Science and Engineering, School of Process, Environmental and Materials Engineering, University of Leeds, UK
IIDepartment of Chemical Engineering, Monash University, Melbourne, Australia

 

 


SYNOPSIS

The ability to perform three dimensional imaging at micronscale resolution of real mineral floc sediments and structures using commercially available Micro X-ray Tomography (XMT) instrumentation can be used for the analysis of aggregates and granules, liberation and dewatering of sediments. This paper presents a review of recent work by the authors relevant to the mining and minerals industries. It covers three main topics: X-ray imaging of agglomerates and multi-component mineralic particles,, permeability of sediments, and dissolution of granules with potential application to heap leaching.


 

 

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References

1. MAIRE, E., MERLE, P., PEIX, G., BARUCHEL, J., and BUFFIERE, J.-Y. X-Ray Tomography in Material Science, Hermes Science Publications, Paris. 2000.         [ Links ]

2. DESRUES, J., VIGGIANI, G., and BESUELLE, P. Advances in X-ray Tomography for Geomaterials, ISTE Publishing Company, London. 2006.         [ Links ]

3. SUCCI, S. The Lattice Boltzmann Equation: For Fluid Dynamics and Beyond, Clarendon Press, Oxford. 2001.         [ Links ]

4. HOFFMAN, H.W. A 3D lattice Boltzmann code for modelling flow and multicomponent dispersion, Sandia Report, SAND99-0162. 1999.         [ Links ]

5. JIA, X. and WILLIAMS, R.A. A packing algorithm for particles of arbitrary shapes, Powder Tech, vol. 120, 2001. pp. 175-186.         [ Links ]

6. WILLIAMS, R,A, and JIA, X. Tomographic imaging of particulate systems, Adv Powder Tech, vol. 14, 2003. pp. 1-16.         [ Links ]

7. WILLIAMS, R.A. and JIA, X. Structure modelling and property prediction for mineral engineering, XXII International Mineral Processing Congress, Cape Town, South Africa, 28th September-3rd October 2003. pp. 198-206.         [ Links ]

8. STRIKWERDA, J. Finite Difference Schemes and Partial Differential Equations, 2nd Edition, Society for Industrial Mathematics, Philadelphia. 2007.         [ Links ]

9. SELOMULYA, C., JIA, X., and WILLIAMS, R.A. Tomographic imaging of flocs and flocculating suspensions, PARTEC 2004, Nuremberg, Germany 16-18 March 2004.         [ Links ]

10. SELOMULYA, C., TRAN, T.M., JIA, X., and WILLIAMS, R.A. An integrated methodology to evaluate permeability from measured microstructures, AIChE Journal, vol. 52, no. 10, 2006. pp. 3394-3400.         [ Links ]

11. JIA, X., XU, C., and WILLIAMS, R.A. Use of lattice Boltzmann method to facilitate characterization of pore networks in porous media, Particulate Systems Analysis 2005, 21-23 September 2005, Stratford-upon-Avon, UK. 2005.         [ Links ]

12. JIA, X. and WILLIAMS, R.A. Agglomerates-Structures and their dissolution behavior, no. 47a, The 5th World Congress on Particle Technology, 23-27 April 2006, Disney's Dolphin Hotel, Orlando, Florida, USA. 2006.         [ Links ]

13. JIA, X. and WILLIAMS, R.A. The shape of things to come, Pharm Tech Europe, vol. 17, 2005. pp. 29-36.         [ Links ]

14. JIA, X. and WILLIAMS, R.A. A hybrid mesoscale modelling approach to dissolution of granules and tablets, Chem Eng Res Des, vol. 85, 2007. pp. 1027-1038.         [ Links ]

15. WILLIAMS, R.A., and JIA, X. Digital visual simulation for design of mineral and metal recycling processes and of secondary products, Minerals Eng vol. 20, 2007. pp. 933-938.         [ Links ]

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