van der Walt, H, Rusconi, JM & Goosen, P 2009, 'Appraisal of Conventional and Paste Options for the Disposal of Tailings Over the Remaining Life of the Venetia Diamond Mine', in R Jewell, AB Fourie, S Barrera & J Wiertz (eds), Proceedings of the Twelfth International Seminar on Paste and Thickened Tailings
, Australian Centre for Geomechanics, Perth, pp. 355-363, https://doi.org/10.36487/ACG_repo/963_39
Venetia mine is evaluating options for the disposal of fine residue tailings over a potential life-of-mine
(LOM) extension. Venetia mine appointed a project team to assess these options, and Paterson & Cooke
Consulting Engineers (Pty) Ltd were requested to undertake the thickening, pumping, piping, and electrical
and instrumentation (E&I) aspects of the work. Future disposal options will require either an expansion of
the two existing fine residue disposal tailings facilities or an entirely new facility. The tailings can be
disposed of as conventional, low density slurry or as a higher density paste. During the early phase of the
study, six options were considered. This was later reduced to four, three paste, and one conventional option.
A decision on the preferred option needs to take into account a diverse range of requirements including, but
not limited to, capital and operating costs. These include factors such as the flexibility of the pumping system
to accommodate changes in rheology, flow rate and pumping distance and the operational requirements of
This paper presents the thickening, pumping, piping and associated E&I systems required for these options,
estimated capital and operating costs and a discussion of the relative merits of each one.
Houman J. and Johnson G. (2002) High density disposal of co-thickened Kimberlite slurry using positive displacement
pumps – a case study, 15th International Conference on Slurry Handling and Pipeline Transport, Hydrotransport
15, Banff, Canada, June 2002.
Houman J. and Johnson G. (2003) Commissioning and operation of the paste thickening farm at Kimberley combined
treatment plant, Proceedings of the Fourth International Seminar on High Density and Paste Tailings,
Melbourne, Australia, May 2003, Australian Centre for Geomechanics, Perth, Australia, Section 12.
Johnson G. and Vietti A. (2003) The design of a co-thickened slimes disposal system for the Kimberley combined
treatment plant, Proceedings of the Fourth International Seminar on High Density and Paste Tailings, Australian
Centre for Geomechanics, Perth, Australia, Section 11.
Venetia Deep Cone Paste Thickening Pilot Trial, GL&V Report, 20 July 2004.
Paste 2009, Viña del Mar, Chile 363