The advantages of paste disposal of tailings in arid environments

Mineral deposits are often situated in environments where water is scarce or of a finite quantity. The disposal of tailings in paste form by means of a landfill operation is a relatively new and untried technology. The costs and risks associated with using paste disposal of tailings appear to be relatively high when compared to conventional tailings disposal. For site specific situations there is, however, merit in using this new technology. However, mine owners and operators need to be convinced that there will be a return on their investment, both during the operating life of the facility and after closure. This paper outlines some of the financial advantages related to water resources and water management, both during operation and post closure, of using paste disposal in arid and water deficient environments.