Authors: Fawell, PD; Simic, K; Mohanarangam, K; Stephens, DW; Rudman, M; Paterson, D; Yang, W; Farrow, JB

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Fawell, PD, Simic, K, Mohanarangam, K, Stephens, DW, Rudman, M, Paterson, D, Yang, W & Farrow, JB 2011, 'Pilot and full-scale validation of thickener and feedwell modelling', in R Jewell & AB Fourie (eds), Proceedings of the 14th International Seminar on Paste and Thickened Tailings, Australian Centre for Geomechanics, Perth, pp. 81-91.

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Advanced Computational Fluid Dynamics (CFD) modelling techniques are well suited for examining suspension flow patterns within feedwells and thickeners from which improved design options can be developed and evaluated. However, the confidence to rely upon recommendations based upon CFD requires model validation, something that is not readily achieved without a major commitment of resources. This paper outlines a number of experimental validation procedures applied to test CFD models for different thickening zones as part of the AMIRA P266 “Improving Thickener Technology” series of projects.

Anderson, J. and Papachristodoulou, A. (2009) On validation and invalidation of biological models, BMC Bioinformatics, Vol. 10, p. 132.
Becker, N.S.C., Bennett, D.M., Bolto, B.A., Dixon, D.R., Eldridge, R.J., Le, N.P. and Rye, C.S. (2004) Detection of polyelectrolytes at trace levels in water by fluorescent tagging, Reactive and Functional Polymers, Vol. 60,
pp. 183–193.
Bizi, M. and Gaboriau, H. (2008) Flocculation analysis and control system by laser diffractometry at industrial scale, AIChE Journal, Vol. 54, pp. 132-137.
Brouckaert, C.J. and Buckley, C.A. (1999) The use of computational fluid dynamics for improving the design and operation of water and wastewater treatment plants, Water Science and Technology, Vol. 40(4-5), pp. 81–89.
De Clercq, B., Lant, P.A. and Vanrolleghem, P.A. (2004) Focused beam reflectance technique for in situ particle sizing in wastewater treatment settling tanks, Journal of Chemical Technology and Biotechnology, Vol. 79,
pp. 610–618.
Fawell, P.D., Farrow, J.B., Heath, A.R., Nguyen, T.V., Owen, A.T., Paterson, D., Rudman, M., Scales, P.J., Simic, K., Stephens, D.W., Swift, J.D. and Usher, S.P. (2009) 20 years of AMIRA P266 ‘Improving Thickener Technology’ - how has it changed the understanding of thickener performance?, in Proceedings 12th International Seminar on Paste and Thickened Tailings (Paste09), R.J. Jewell, A.B. Fourie, S. Barrera, J. Wiertz (eds), 21–24 April 2009, Viña Del Mar, Chile, Gecamin Limited, Santiago, Australian Centre for Geomechanics, Perth, pp. 59–68.
Johnston, R.R.M., Schwarz, P., Newman, M., Kershaw, M., Farrow, J.B., Simic, K. and Swift, J.D. (1998) Improving thickener performance at Pasminco Hobart Smelter, Zinc and Lead Processing, J.E. Dutrizac, J.A. Gonzalez, G.L. Bolton, P. Hancock (eds), Canadian Institute of Mining, Metallurgy and Petroleum, pp. 697–713.
Kahane, R.B., Schwarz, M.P. and Johnston, R.R.M. (2002) Residue thickener modelling at Worsley Alumina, Applied Mathematical Modelling, Vol. 26, pp. 281–296.
Laine, S., Phan, L., Pellarin, P. and Robert, P. (1999) Operating diagnostics on a flocculator-settling tank using Fluent CFD software, Water Science and Technology, Vol. 39(4), pp. 155–162.
Leclerc, A., Boivin, A, Simard, G, Morin, L., Gagnon, M.J., Verreault, R. and Peloquin, G. (2005) Electromagnetic detection of iron tracers for monitoring particles displacement in gravity settlers, in Proceedings Seventh International Alumina Quality Workshop, Perth, Australia, 16–21 October, pp. 127–139.
Nguyen, T., Heath, A. and Witt, P. (2006) Population balance – CFD modelling of fluid flow, solids distribution and flocculation in thickener feedwells, in Proceedings Fifth International Conference on CFD in the Process Industries, Melbourne, Australia, December 2006.
Owen, A.T., Fawell, P.D., Swift, J.D., Labbett, D.M., Benn, F.A. and Farrow, J.B. (2008) Using turbulent pipe flow to study the factors affecting polymer-bridging flocculation of mineral systems, International Journal of Mineral Processing, Vol. 87, pp. 90–99.
Owen, A.T., Nguyen, T.V. and Fawell, P.D. (2009) The effect of flocculant solution transport and addition conditions on feedwell performance in gravity thickeners, International Journal of Mineral Processing, Vol. 93,
pp. 115–127.
Rudman, M., Simic, K., Paterson, D.A., Strode, P., Brent, A. and Šutalo, I.D. (2008) Raking in gravity thickeners, International Journal of Mineral Processing, Vol. 86, pp. 114–130.
Taylor, K.C. and Nasr-El-Din, H.A. (1994) Acrylamide copolymers: a review of methods for the determination of concentration and degree of hydrolysis, Journal of Petroleum Science and Engineering, Vol. 12, pp. 9–23.
White, R.B., Šutalo, I.D. and Nguyen, T. (2003) Fluid flow in thickener feedwell models, Minerals Engineering, Vol. 16, pp. 145–150.

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